Browsing posts in: Holiday Lights

Dec 28, 2017 |

Snowball pricing analysis

I’ve been thinking about maybe selling the snowflakes – or a variant of the snowflakes – commercially. Pursuant to that, I did a few calculations on parts costs.

Here’s what it would take to build the prototype in volume (say, 100 units):

Part	Price
PC Boards	$2.04
55 WS2812 LEDs	$3.72
Adafruit Huzzah	$7.96
Acrylic	$4.07
Printed separators	$1.00
Labor @$13/hour	$26
Total	$44.79

The labor is frankly a bit of a guess; it’s probably quite a bit worse than that.

Assuming I wanted a 50% margin, that would put the retail cost at about $90. The snowflakes are nice, but I’m not sure they are $90 nice.

To reduce the price, we need to look at the places that are the most expensive. Clearly, labor is a problem, so making the design easier and more robust to assemble is going to be critical. And the cost of the Huzzah is a big part of the parts cost, so coming up with an alternative that is easier and cheaper to use makes sense.

Snowflake

Dec 14, 2017 |

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Snowflake Final

The snowflakes – five in total – have all been finished.

Well, mostly finished… there are three animating themselves on the gutters of the house right now, while the remaining two (which were on the house until this afternoon) are waiting for their waterproofing to cure.

This post will cover a lot of ground, since I missed a couple of updates along the way.

Assembly

When we last left our story, we had a PCB in the snowflake form and some laser-cut pieces of translucent acrylic that go on the front.

The next step was to put the LEDs on the board. My hope had been that I could use the hot air rework station to reflow all the LEDs, but a bit of experimentation showed that I was melting the LED cases and hand soldering was faster, so I went that way. I think a cheap reflow oven is in my future.

I used the following approach:

Add solder to all the solder pads on the snowflake (55 * 4 = 220 of them).
Carefully hold an LED in the right position, and touch two of the pads to tack it in place.
Press down hard on that end of the LED, and touch each pad until the LED sinks down even with the level of the board at that end. .
Repeat on the pads at the other end of the LED.
Reheat the first two pads to get rid of the stresses induced when the second end was dropped down.

That was mostly straightforward, except it turns out that if you put the LEDs in backwards, they turn into HEDs – Heat Emitting Diodes – and you get to remove them and put new ones in their place. I put my new hot air rework station – a 9570W+ – to work at that.

Eventually, I got all of them soldered correctly, fixed some connection issues between the boards, and had something I could run my initial animation code on.

It worked.

My original plan was glue the PCBs directly to the acrylic, but I discovered that I liked the result better if there was some space between them. I did tests using pennies as spacers, grabbed my calipers to get some measurements and drew a quick drawing, and then came up with this in TinkerCad:

And then printed up a bunch of them in clear PLA. They mostly work pretty well; the only downside is that the connection at the small end needs to be flexible to warp around the board but that also makes it a bit weak, so I’ve broken a few of them. Carefully put them on the PC board and squeeze in the acrylic, and you end up with this:

Call this the first prototype. At this point, I was a bit tired of soldering and was waiting for some more parts to show up – and finding out that Amazon’s two-day prime shipping is only aspirational at times – so it was time to write some code.

Code

Both the code and the circuit designs live in GitHub here.

I’ve written four or five versions of color-blending animation code. Last year I wrote a nice abstraction that worked great for the linear strip animations I was doing, but it didn’t adapt very well to what I wanted to do here, so I went back to first principles.

Using polar coordinates, the code knows the location of each LED on the snowflake. For some of the animations, the color is determined by either the angle or distance of the LED from the center, and in these, there is just a simple mapping that says “add the animation offset to that number, and then use it to find a color”.

The nice part of this approach is that is gives me appropriate color blending across the whole snowflake.

I spend a few days on the code, and it’s decent as a first try. It implements four animations:

A continuous rotation of all the colors around the arms of the snowflake.
An animation of colors based on the distance of the LEDs from the middle.
A “sparkle” effect; all the LEDs smoothly and slowly blend between colors, while random LEDs flash full white and then fade back to the current color. I wrote some nice code for this.
A bouncing effect called “worm” that is a bit of a take on the Larson Scanner, but across opposite arms of the snowflake, also with color blending.

I had more ideas for animations, but decided to freeze the implementation so I could finish the build.

Autonomous display

For the prototype so far, I was driving it with a ESP that was powered by the serial port, and with a short ribbon cable carrying signals to the snowflake itself.

My plan was to put the ESP remote from the snowflake (so it could be under the eaves and shielded from rain), so I cut two-foot lengths of red/black/yellow wire (for power and signal), wired everything up, plugged it in…

And the LEDs started flashing randomly. Tried decoupling capacitors, tried signal resistors, tried a whole bunch of things, and nothing worked; if I made the signal line longer than about 10”, it wouldn’t work.

Trying to fix that consumed the better part of a day. Ultimately, I decided that the problem was that I was getting a lot of transients, so I decided to run the 5V power directly to the snowflake, and then chain the ESP off of that.

And it worked perfectly the first time, leading to this arrangement:

Plus 4 = 5

During the long hours of making four more of the PCBs – cursing my choice to use tiny pads for data connections and not doubling them – I realized that there was a far better way to do the attachment; if I allowed the boards to overlap vertically, I could use through-holes that aligned between the parts and just solder component leads into the holes. My guess is that I could do that basic board in about 1/10th the time, even less than that if I could reflow solder the LEDs. And the boards can probably be (mostly) square, which will make them easily fababble, easily broken apart, and they will fit tighter for better utilization.

Sounds like version 2 to me.

I didn’t take any pictures during this time, but it was a huge pain in the butt to get them all working; the tiny data paths were especially troublesome.

Finally that, was done, and I could turn to other matters. Four more Huzzahs were wired up:

and were all attached to the snowflakes.

With the Huzzah mounted close, it needed some protection, so a bit more time in TinkerCAD yielded a nice little case:

That’s a PrintrBot simple metal pro with a custom heated bed on it. I had the usual problem getting tolerances right, but eventually got to here:

Power

Whenever anybody asks me what the hardest part of these projects is, I always respond “cabling”.

LEDs are power hungry, and unfortunately small wires introduce voltage loss, which means you get color shift. If I had 3 snowflakes on one wire, the last one is going to be dimmer and the colors will likely shift as well. In my previous projects I’ve resorted to powering strips at both ends and using thick landscape lighting wire, but it’s a huge pain.

This time, I got smart.

WS2812s pull about 60 mA max if they are all white, and with 55 of them I needed 3.3 amps @ 5 volts. Since I can live without full white, I decided that 3 amps would be sufficient. And bought 5 of these:

One of these will be right next to each snowflake, and then I just need wires that supply something around 12 volts, and everybody will get a nice solid 5V supply and be happy. I reused the 10-gauge wire I had for the project this replaced, but I could easily get by with something like 18 gauge.

I’m not sure powering with DC is the right approach, however; it might be cheaper to go with small 5V AC power supplies and just use standard AC cords.

Waterproofing

I live in the Seattle area, and the holiday season is generally quite wet, and the electronics will need some protection from the elements.

I have quite a bit of West Systems epoxy sitting in the garage leftover from a custom subwoofer enclosure I did a while back, but their website didn’t yield much information about its conductivity. So, I built this:

and embedded it in a whole lot of epoxy:

Works fine…

Distractions

About this time, I had a couple of distractions. First off, this showed up from Italy:

Getting it picked up, legs on it, and ordering parts to recondition it took a bit of time.

And, I had an event where I needed the snowflakes to be part of the display, so I totally finished two of the snowflakes and put them out on the house, trusting that the weather would stay unseasonably dry. Here’s the bench test:

You can see the DC->DC converter to the left of the lower snowflake.

I should at this point mention that pictures or video never do these colors justice; they are much more intense than they show up here.

Waterproofing part 2

To keep the attached wires in the right spots, the wires and the Huzzah needed to be supported above the PCB which will be covered in epoxy. Here’s what I ended up with:

After I carefully poured epoxy over all the parts of the board that needed them, the boards got hung up to cure:

It being about 40 degrees in the garage, they did not cure overnight and eventually I had to pull them inside to finish curing. They looked like this when they finished curing:

I retested them. One of them worked perfectly, the other two did not; only some of the LEDs worked.

So, out came the air rework gun to debond the epoxy in an area and then I could trace from there. I ended up replacing about 5 LEDs; from what I can tell they were touching but no soldered, and the cold weather shrunk things enough so that the epoxy could get in there. I also had one pcb trace break (really?). Then, those two got an epoxy touchup to cover over the reworked areas. .

Finally, the huzzah box got hot-glued to the back and silicone was used to plug the hole.

Not perfect, but version 1.

You can also see the molex connectors that bring 5V into the snowflake.

Videos:

Snowflake from Eric Gunnerson on Vimeo.

Version 2

*Lots* of ideas for version two, which might be a commercial version.

The whole mounting and waterproofing approach is far too finicky and may not work very well. I’m considering vacuum-forming the snowflake out of thinner plastic with both a front and back, and those can then be solvent welded (or siliconed) together to give me something that is truly waterproof. It will also give much better support for the PC boards.
The approach of “click-together” pc boards worked, but it required fine-tuning for each and every joint and then detailed soldering for each part. And then rework when the stresses built up. Instead of click-together, I’m going to use overlapping boards that are connected with through-hole wiring. That will take me down to 10 easy-to-solder joints per arm, or about 60 in total. I also think I can get each of the PCs to be rectangular in format, and that will make panelization easier and waste less space. I think.
I really need a way to reflow solder all the LEDs, and it may be time to make/buy a tiny reflow oven. Or *maybe* get somebody to do that for me, though the initial quotes I looked at are higher than I expected.
Moving the ESP8266 onto the snowflake board, probably on the back. That would require adding a simple 3.3V regulator for power and (probably) programming pins. I’m currently using an ESP-12; I could probably get away with a simpler one but they are pretty cheap already so it may not be worth it.
Add more built-in animations. Color wipes in the x/y direction, flash and off animations, concentric rotating color blends could all be done.
WiFi coordination between standalone snowflakes, with a dedicated network just for the snowflakes, and *maybe* a separate gateway to connect to an existing wireless network.
WiFi connection to an existing wireless network to allow control of the snowflakes. This might encompass setting their default set of animations, being able to download new animations, or being able to do “command control” over the wireless network, either just setting the animation that’s being run or driving every LED independently.

Snowflake

Nov 18, 2017 |

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Snowflake update…

Have made decent progress on the snowflake. I have two PCBs assembled and populated. The right way to do it would be to use a reflow oven, but I’ve settled on using my new hot air rework station and solder paste to do the data lines – since the pads that I need to connect are tiny – and hand soldering everything else, including the LEDs. I did reflow on a test LED and it worked, but I had to get things hotter than I would like.

I finished the outline design and cut the snowflake fronts from white acrylic. This was a bit frustrating; the Glowforge is advertised as being able to cut about 11.5″ in the forward/back direction, but they haven’t been able to achieve that, so I had to cut slightly smaller than I wanted.

I used one sheet each of #7328 and #2447 acrylic so I could see which one I liked better:

After playing around a bunch (something like 15 variants) with both plastics and with keeping them different distances from the LEDs, we settled on 2447 spaced about 10mm away.

Then it was off to Tinkercad to design a clip that would hold the front to the pc boards, which finally led to this. You can see the clips (printed in clear PLA) holding the snowflake at the right distance.

MVI_8888 from Eric Gunnerson on Vimeo.

After a false start or two, I think I have a handle on how I want to structure the animation code; it’s nice and mathy…

Now I just need to order some more Huzzahs to drive the other snowflakes, figure out how I’m going to handle the cabling, and buy some waterproof 12V –> 5V buck converters (I’m tired of worrying about voltage drop).

The video is powering the LEDs from a USB port using tiny wires, and the 5V supply is sagging down to around 4 volts because of the load. So, it will be brighter than this.

Oct 29, 2017 |

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Snowflake #2–PCB design

I thought that I was done with the PCB design, but it turns out that I wasn’t close.

Basically, I ran into two big issues.

The first was the wierd angles that I had in my design; they didn’t pack together very well. What I really needed was a way to rotate the two short arms so they were at 90 degree angles.

I couldn’t find anything, so I went and wrote a utility to do it. On the way, I learned a lot about the KiCAD file format. It was a nice little exercise; I’ll note that it’s in pretty rough shape and you would need to recompile it to get the rotation you wanted (and to work on the file you wanted); maybe I will clean it up at some point. It’s C# code because that’s what I speak best.

I guess I should also note that I built a little .pcbnew parser to do it; it parses the file into a bunch of nodes, you change the ones you want to change, and then it writes the file back out the way it was before except for the changes. So, it will likely be useful for other stuff as well.

So, anyway, that gave me everything at increments of 90 degrees, which was good. Then I went off and started trying to understand if PC fab houses could build what I wanted. The answer seemed to be “yes” (though not in the current form), but they would likely charge extra and there was a decent chance they would make a mistake. The problem is that I have 4 different irregularly-shaped boards. You can’t use v-groove panelization because that only works with (mostly) rectangular boards. I was hoping to use the GerberPanelizer, but I couldn’t get any of my boards to show up in it; I suspect it’s because of their shape.

So, I went off and taught myself the requirements and spent a bunch of time coming up with this:

This is a hand-panelization of my boards. The idea is to come up with a design that can be fabricated as a single piece by the fab (and assembled/soldered/etc., if you are planning on having somebody do that) but can still be easily separated.

You do this by putting little breakaway tabs with small holes (I used large vias because KiCAD only supports holes in footprints). The idea is that after you get the pcb, you can carefully break off the parts with the weak tabs to separate the boards. The tabs are also called “mousebites”.

To make them breakable, you need to design things so that you have multiple tabs that are in a line and could easily bend. That isn’t even close to possible with this design, so what I’m going to do is cut the boards apart with my Dremel rotary tool or oscillating multitool. The rough edges will not matter for this application. If the design is correct, all the yellow edges will be cut with a router after the PCB is etched.

Oh, and the small boards on the right are little WS2812 breakout boards; I had a bunch of extra space in the square, so I added them in.

My first check is to upload to OSHPark and see what it thinks; I’m not going to order there but it does full visualization of the boards. Here’s what I got for the board and the board outlines:

Yeah, that’s not very good. The design looks fine. However, when I was switching between layers, I accidently chose the “Eco2.user” layer instead of the “Edge.Cuts” layer. They are rendered in the same color. All I needed to do was to turn off that layer, and then I could flip those lines over to the edge cuts layer, and that fixed the issue.

OSHPark still has trouble with the design, but I’ve exported Gerber files (one file per layer in the design tool) and looked at them in other viewers and they are fine. I think the OSHPark viewer is having trouble with the internal cutouts.

Because of the complexity of the design, I’m not sure how to spec it on the online ordering tools, so it is currently out to order.

Oct 22, 2017 |

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Snowflake

For the last 5 years or so, I have led a “Holiday Lights Bike Ride” in early December. It’s fun to tour around and look at lights on a bike, and the view you get on a bike is very different than in a car.

One of the houses has a large snowflake with white and blue lights. Very nice and pretty.

After four years of service, I retired the LED strips I had along my gutters. The “waterproof” strips had started shorting out and it was a pain to replace sections. I personally liked the “line of light” look, but the vast majority of people didn’t even notice that they changed color.

My first thought was to replace them with WS2812 strips, so that I could address all of them. I played around with a few designs, but didn’t solve the design problems to my satisfaction; coming up with a way to keep the strips actually waterproof while still supplying them with power (which you need every 2.5 meters) was a hard problem. So, I put that project on the back burner.

A while back, my Glowforge showed up, and that triggered a new thought about the snowflakes. Instead of doing addressable LEDs on the gutter, could I do snowflakes that hung at gutter level? And then do the gutters with some nice traditional C9 LEDs.

Here are the basic parameters that I came up with.

Addressable LEDs (probably WS2812s)
Snowflake outline in acrylic (because I can cut it on my glowforge), white so that the color spreads out, and something like 12″ across (a little small, but it’s an easy size to deal with, and larger sizes make it harder to deal with the wind storms we always get).
Around 50 LEDs per snowflake
With local 5V power supply. I’m tired of running 10 gauge cable and worrying about voltage drop, so I want something regulated and local. It will probably be a local 12v to 5v converter, though I might end up with local AC instead.
Microcontroller controlled. That was obvious with the ws2812 choice.
*Maybe* WIFI controlled. I’m thinking maybe 8 of the snowflakes, and I can do an ESP8266 across that many relatively cheaply. That would let me drive them in sync from the comfort of my office machine.

The snowflake design was pretty simple; it had to be so that I could easily light it with LEDs.

One of the truisms in these projects is that it’s always the wiring that is the most painful part. That almost killed me on the Snowman project; lots of individual wires, and each has to be cut, stripped, and soldered. Not fun.

I’m thinking about doing 8 of these, so that would be 8 * 50 (leds) * 4 (connections), or something like 800 wires and 1600 solder joints. And to compound that, you need decent sized conductors so that you don’t lose too much voltage along the way.

The way to get rid of all the point-to-point soldering is to use a PC board. Since boards are priced based on their area, I explored using APA102 LEDs which are available in a 2020 package.

That’s 2mm x 2mm, or just a little bit more than 1/16” square. I’m planning on soldering with a heat gun (or maybe I’ll pick up a cheap hot air rework station), but the 2020s will be blown right off the board.

So, it was back to the 5050 (5mm x 5mm) package, and at that point the WS2812B won out on cheapness. The APA102s are nicer but much pricier. Oh, and they have separate clock and data, which is one more wire to try to route correctly.

And there I ran into a problem. A run of eight 12″ x 12″ boards would be right around $200, which is a bit pricier than I had hoped, and it’s not clear to me that I could find a fab that would be able to cut such a fragile arrangement of boards; in fact, I was pretty sure I couldn’t find one.

After some thought, I realized that I could do the snowflake as a series of boards; a central board, 6 straight boards that attach to the central board, and 12 arm boards that radiate from the straight boards.

After a bunch of iterations, it ended up looking like this:

And yes, I did notice the resemblance:

Image result for klingon warbird drawing top view

I took that design, pulled it apart, duplicated parts, and came up with this layout:

The PC board will be a little bigger because I’ll need tabs between each part, but it will be close. That is about 5” x 5.3” and has all the parts for a 12” snowflake.

But would it work? Well, a trip to the glowforge with a piece of cheap plexiglass and two minutes of time yielded enough pieces to test it out (the rest didn’t cut cleanly because cheap plexiglass):

The laser loses a bit of material in the kerf, so they are a bit loose, but that will be better with the real design, and it isn’t structural; all of this is supported by the acrylic snowflake, which is thicker and beefier.

It was time to do some board designing. Unfortunately, I don’t have a full license to Eagle, and the free version won’t let me design boards that big (actually looking at the new Autodesk free license, I probably would have been fine), so that meant I had to teach myself KiCAD. Like Eagle, it has a bunch of weird eccentricities which are of course different than the ones Eagle has, and I’ve spent a lot of time researching how to do things that are very simple.

The circuit is really very simple; just power, ground, and a daisy-chained data line. The only big constraints are:

I want big traces to limit the voltage drop
I need to be able to connect from one board to another

My usual approach for PC board design is to draw the schematic, and then just start playing around with layout. The layout of LEDs is pre-determined, so it’s really just about routing all the conductors.

Here’s a very ugly schematic:

I luckily forgot to save my early versions because they were pretty bad, but with a lot of refinement and rework, here’s version 0.9.

The fat green VCC and GND traces are on the underside of the board, and then the thin red traces (or yellow if there are green lines behind) are the data lines. Wherever there are breaks between the boards, the are solder pads that span across the boards; the idea is that those will be soldered to hold the boards together.

The hub on the right was an interesting challenge; I need to design the pads and place the pads for the other 5 arms so that they will correctly align with the one arm that I did design.

Here’s a close-up of the hub:

The yellow line is the board edge, so what what I have is pads that hang halfway over the board edge and out into space. You will see some small little blue dashes; those are used to align the pads properly on the cutout.

If you look at the little red data line pads, you’ll see that they aren’t so well aligned. I think I’m going to need to redesign those pads with the same alignment marks so they can be better aligned. Then I’ll have to tear out most of the data lines and the old pads, rotate each new pad to the proper angle (each one is different because of the shape of the recess), and then redo all the tracks that run to them.

Such is the nature of PC board design; you think you are done, and then you need to do a bunch of re-routing.

Luckily, the tool helps out a lot; the system knows which pins should be connected to other ones. If I get rid of some of the connections, it looks like this:

Each of those thin gray lines shows a connection that is made in the schematic, but is not correctly made on the board. The software also has a number of other design rules that help you find mistakes.

At this point, I upload is to OshPark, which I like for small boards, and it gave me this as a final design view:

Which looks pretty nice. 9 LEDs on each arm plus one on the hub gives me 55 LEDs per snowflake.

Given the size of the scrunched together version, I think I can get the boards for 8 full snowflakes made and delivered in 12 days for around $80, which is pretty good.

The downside of this approach is that you spend a lot of time on the pc design, but I’d rather be doing that then spending days straining my eyes and back hand-soldering.

Now the big question is, “how lucky do I feel?” Do I order a whole run at once, or do I order one and verify that it works before ordering the other 7?

Oct 30, 2016 |

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Advanced Garage Lighting

I’ve had a project floating around in my head for a number of years…

We have a two-car garage with a nice white door that faces the street. I would like to use it as a canvas for something more interesting. My first thought was to build/buy/adapt a laser projector, and while I think that would be a fun project, it would unfortunately involve aiming laser light back towards the garage, which isn’t really the safest thing in the world. I’d also need to put the projector out in the rain someplace, so despite the whole “pew pew” lasers thing, I shelved it.

I’d also considered using some addressable LEDs, but for the first ones were pretty pricey, and I hadn’t figured out how I wanted to control them.

Recently, the project jelled (gelled?), and here’s the plan:

A 5 meter (2.73 fathom) strip of addressable WS2812 RGB LEDs, with 60 LEDs/meter so a total of 300 individual LEDs. This will be mounted under the front eave of the garage facing down and back towards the house. I chose these because they are the cheapest decent addressable LEDs available and they are fairly ubiquitous, which means you can find libraries to drive them for most microcontrollers. Which is good, because they have strange timing requirements.
A 20 Amp 5 Volt power supply. At full brightness each LED takes about 60 mA, and 0.06 * 300 = 18, which give me a bit of headroom. That’s about 90 watts to the LEDs, and these are pretty efficient, so yeah, that’s a lot of light. I had considered going with the strips that have 144 LEDs/meter, but they are a lot pricier and those would require 0.06 * 144 * 5 = 44 amps of power, which makes it less like a lighting project and more like a welding one.
A ESP8266 wireless microcontroller. These are really hard to beat; you get a microcontroller with a decent number of inputs and a full 802.11 wireless stack; it can function either as a wireless client that hooks up to your house system, or it can function as a hotspot on its own. And it’s cheap. I went with the Adafruit Huzzah because it comes on a nice board that can be driven by 5 volts, and because Adafruit doesn’t sell cheap stuff that breaks. And it’s still less than $10. Oh, and it uses the Arduino IDE.
A light sensor, so that I can use this as general lighting during the night. Sensor TBD.
A passive infrared sensor, so I can ramp the LEDs up to full brightness when somebody shows up. Sensor TBD.

The hardware part is straightforward; it will just be a matter of getting all the parts and hooking them up. I haven’t settled on my mounting approach for the strip, but I think it will probably be 3/4″ electrical conduit, as it is very straight, very rigid, cheap, and has decent ways to mount it to walls. That also lets me twist it around to adjust the light.

As for the software, that gets a little more interesting. The ESP will serve up a web page where you can choose your lighting scheme (all on, specific colors, a rainbox effect, etc.), and I’m planning on coding that directly in HTML since I didn’t like any of the libraries that I found. For the LEDs, I’m taking a different approach.

The existing libraries are written to run on Arduinos, which have very little memory, so you need to be very small and optimal. That leads to code that looks like this:

// Input a value 0 to 255 to get a color value.
// The colours are a transition r – g – b – back to r.
static uint32_t Wheel(Adafruit_NeoPixel& strip, byte WheelPos) {
   WheelPos = 255 – WheelPos;
   if(WheelPos < 85) {
     return strip.Color(255 – WheelPos * 3, 0, WheelPos * 3);
   }
   if(WheelPos < 170) {
     WheelPos -= 85;
     return strip.Color(0, WheelPos * 3, 255 – WheelPos * 3);
   }
   WheelPos -= 170;
   return strip.Color(WheelPos * 3, 255 – WheelPos * 3, 0);
}

static void Rainbow(Adafruit_NeoPixel& strip, uint8_t wait) {
uint16_t i, j;

for(j=0; j<256; j++) {
     for(i=0; i<strip.numPixels(); i++) {
       strip.setPixelColor(i, Wheel(strip, (i+j) & 255));
     }
     strip.show();
     delay(wait);
   }

Honestly, that is just awful; the animation is written right at the metal, and this approach doesn’t integrate well into the ESP because the web server can’t handle any requests while we are stuck in one of these loops. Luckily, the ESP has a lot more memory than the Arduino, and I can afford to spend that on some much-needed software abstractions. So, using the skills I apply at work when I’m writing C# I asked myself, “Self, what sort of library would I build if I had a bit of memory to spare?”. And this is what I came up with:

A Chunk is a series of RGB pixels that acts as a pixel source. Let’s assume that it has three pixels and is set to “Red Green Blue”.

A Mapper knows how to map a chunk onto the RGB strip. It is pretty simple; it just does the following:

for (int i = 0; I < strip.numPixels(); i++)
{
strip.setPixel(i, chunk.getNextPixel);
}

The Mapper maps the chunk onto the strip until the end of the strip, so if our strip had 9 pixels, it would end up with “Red Green Blue Red Green Blue Red Green Blue”.

That gives me a simple static mapping, but chunk has one more feature; you can set the offset at which it will start sourcing pixels. So, if I write something like:

for (int offset = 0; offset < chunk.numPixels(); offset++)
{
chunk.setOffset(offset);
mapper.renderAndShow(chunk);
}

That gives me a chaser feature; every time through the loop, the chunk shifts one spot to the right, and the chunk wraps around.

I can also use this with chunks that are larger than the strip, and animate the offset back and forth to control the portion of the chunk that is shown.

The Blender class is used to create a chunk that blends two colors together; pass it the first color, the second color, and the number of steps for the blend, and it generates a chunk that implements the blend.

The following code generates a 180-pixel blend across 6 colors:

RGBColor red(255, 0, 0);
RGBColor yellow(255, 255, 0);
RGBColor green(0, 255, 0);
RGBColor cyan(0, 255, 255);
RGBColor blue(0, 0, 255);
RGBColor magenta(255, 0, 255);

Blender blender(180);
blender.addBlend(red, yellow, 30);
blender.addBlend(yellow, green, 30);
blender.addBlend(green, cyan, 30);
blender.addBlend(cyan, blue, 30);
blender.addBlend(blue, magenta, 30);
blender.addBlend(magenta, red, 30);

pChunk = blender.getChunk();

It is much much much easier to understand than the code I started with, and very easy to modify.

And finally, there is an Animator class that makes it easy to drive all of these from the loop() method. Give it a minimum and maximum offset, how often to modify the offset (so you can do slow animations), and the increment to add to the offset, and then just call run() every loop and it will handle the animation for you.

I’m pretty pleased with the current implementation, but it’s not quite good enough to easily implement a Larson Scanner, which is a definite requirement. I think I can do it with two chunks that are a lot bigger than the strip, but it would be inefficient. Perhaps if the chunks were sparse, with blank spaces at each end.

Nov 30, 2014 |

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Animated snowman–Part 4

Progress on the snowman has been a bit slow. Most of what it left is getting the animations to where I like them, which involves a lot of iterations of writing some code, downloading it, debugging it (through the serial port and/or using an oscilloscope), and then working on a new version.

I’ll drop all the code on Github when I’m done with it. I built a couple of nice classes.

ColorFader knows what its current color is and then does a smooth fade (over however many steps you want) from that color to your target color. It uses fixed-point fractional math, a nice little technique that we used to use in the old days to do smooth movement without fast floating point operation.

The problem is if I want to move from the value 1 to the value 8 in 50 steps. If I had floating point, I’d just divide 7/50 and get something like 0.14, and add that on each step. Here’s what I do instead:

| full byte | fractional byte|

So, to go from one to 8, I set my initial values into the full byte.

1 => | 1 | 0 | = 512

8 => | 8 | 0 | = 4096

I can now figure out my delta, which is (4096 – 512) / 50 = 71. That is the value I will add each increment. The stored current value will look like this:

Full Fractional

| 1 | 0 |

| 1 | 71 |

| 1 | 142 |

| 1 | 213 |

| 2 | 28 |

| 2 | 99 |

| 2 | 170 |

| 2 | 241 |

| 3 | 56 |

The number we pull out as the actual value is the full byte, but the fractional part makes it change in a smooth way. This technique also works with wider data types (ie you can have a two-byte (unsigned short) full value and use two bytes for the fraction), but color values only range from 0-255 so this is all I need.

Because the fractional value is not exact (it’s really 71.68), we will lose 0.68 * 50 = 34 from our target, so we will only get to 7 (+ a fraction) rather than 8 on our animation. That’s generally okay for this sort of application.

I also build ColorFaderMultiple, which chains <n> of the faders together so it switches to the next as soon as one fade is done.

Animations

I ended up with four animations:

A startup animation fades in from dark to white
A random color animation that gives each globe and other sections a solid color
A blend animation that chases colors through all the leds in the globes
A bounce animation.

You can find the final version of the code in my github repository.

Appliances

As-built, the snowman has eyes and nose that are just raw LEDs poking through. The mouth and the buttons are raw LEDs behind the globe.

Everybody knows that snowmen have long thin noses, so I decided to print a conical nose out of natural PLA, and that worked pretty well. Things kind of snowballed (HA HA!) from there; I did a octagonal star as a button cover, and it both diffused the light and covered up the LED strip that was visible from behind, so I decided to do more.

The eyes were originally 1” printed PLA discs. They worked, but they didn’t really look like eyes because they weren’t pointed forward. I designed some better ones by building a hollow tube with a flat bottom (think soup can), added a negative ball (“hole” in Tinkercad language) centered over the tube, and then moved it to the side to mimic the distance of the eye from the part of the globe that points right at the viewer. I then dropped the globe so that it cut into the tube, stopping when it left about 4mm on the shortest side. These looked great.

I ended up printing 3 different shapes to use as the buttons. To make them a little more cool, I used the same technique to get them to conform to the shape of the sphere. They also looked nice. That left me with the mouth showing bright LEDs from behind. So, I decided to take the same approach with the mouth. Here are all the appliances:

I put the snowman under conscious sedation and attached all the appliances with silicone cement. I also sealed the nose and eyes with silicone so there’s a bit more water protection.

Wiring

There was a tiny bit of wiring left to do. I built a little harness that has a header for power coming in (5V @ 3 amps), two headers for the arduino (two pins to supply 5V and GND, and one to pull the animation signal). This harness is wired in to the snowman wiring, and includes a 220 ohm resistor in the signal line and a 220uF capacitor across the power line (both recommended by Adafruit).

I needed something to put the Arduino in. After looking at a few case designs, I decided to do my own. It’s a very simple box with a slide-on cap, and sliced with Slic3r and printed on my Printrbot Simple metal, the cap fits tightly. A different slicer and/or printer may require some tuning.

Video

The quality for this is a bit poor, but you will get the basic idea. The colors are much better in real life. The brightness is deliberately turned down because otherwise the feature RGBs overload the sensor and they just look white.

Animated RGB snowman from Eric Gunnerson on Vimeo.

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Along, the pure power in aid of naturopathic complications is lessened. Misoprostol (or Cytotec) is a prostaglandin stimulant. A girl heap up survive spasmic cramps, tegumental Rhesus factor forfeit that is ever more without a customary menstruation, growth, anoxia and diarrhoea. During this agree, inner self resolution tightrope the embryo while better self may not summon up my humble self as long as them is snapping wasp-waisted.

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Nov 10, 2014 |

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Animated Snowman–Part 3

I’ve done quite a bit of work. First off, I’ve finished the bridge to hold the dodecahedra in the top globe. Here’s what it looks like:

The next globe is then attached with a nut and a washer:

The two additional dodecahedra have been built, as has the rest of the supporting armature:

The middle section is connector to the top section with a 3/8” coupler, and the coupler is Loctite’d to the top of the middle section, and the same thing is done with the bottom one. I verified that they all fit together correctly, but decided to add some silicone sealant to the ends of the arms so that they would be a bit more secure.

A bit about the arms. They are angled to miss the top of the globe that it underneath it, and then the outer ends are rotated so that they meet the globe at the proper angle. Then, the upper arm has a slightly different design so that it can stack on top of the lower one. The angle is based upon the size of the sphere, so, in all, there are 6 different arms. They were all designed using TinkerCad, and you can find them here, named “globe fixing <size>”.

Oh, and the arms change in color because the spool on my natural PLA broke, and I came into the room to find my PrintrBot climbing up the filament.

With the armature all done, the next task was to start working on the eyes and mouth for the head. Here’s the layout I ended up with:

I established the center line and put the nose pretty much in the middle, and then played around with different eye locations. The darker circles are what I ended up for both the eyes and the nose. The nose and eyes were drilled out with a 5/16” (just bigger than 8mm) step drill I picked up for $7 from Harbor Freight. I don’t normally buy much there but I didn’t want to spend $45 for the Craftsman version.

The mouth was a bit harder. With a bit of playing around, I figured out that LEDs from the strip looked pretty good if they were inside the sphere. I needed a way to hold them in the proper orientation, which took me back to the printer:

That worked out nicely. The next task was to wire the head LEDs together. At the start there would be a connector (so I can build the sections separately), then the wiring would head to the smile, the nose, the two eyes, and then to another connector and on to the head dodecahedron. I stuck the 8mm LEDs into the eyes and nose from the outside so I could get the wire lengths good, and started soldering. After about 30 minutes later, I had the smile and the nose & eyes hooked up, and I plugged them into my test rig, and turned on the power. All the LEDs turned on, except the 8mm ones were a different color – this was expected because they use RGB ordering instead of GRB ordering, and I planned to handle this is in software. I watched the test pattern, and detected some flickering with some colors. Played around a bit – added 220uF to the power leads, added a 500 ohm resistor between the arduino and the string, but it didn’t help. Hooked up the dodecahedron after the eyes, and it just sort of flickered along. Not good.

Did some internet searches, played around some more, and came to the conclusion that the 8mm neopixels do not get along well with the strip neopixels. So, I desoldered all of them and replaced them with leds from the strip. Plugged them in, and everything was working great.

Installed them into the head with my hot glue gun, which was a bit of a challenge; it’s pretty hard to get one arm to hold the LED and another one with a glue gun through a 5 1/4” opening. Finally got them all glued in and got the smile glued in as well:

This is without the dodecahedron in the middle. The smile is also bleeding up a little because there is a gap between the strip and the globe at the top part of the smile; I’ll probably just cover that with some black electrical tape.

I need something more snowmannish for the nose; I printed out a couple of noses with “natural PLA”, and I might do the same thing for the eyes, or perhaps I’ll just use ping-pong balls. I might need to put some silicone directly over the LEDs to help protect them from water. For some reason they show up yellow in the picture, but they’re pretty white in real life.

Finally, I thought you might be interested in my workbench. I really need to spend some time cleaning to get some of the other projects off of it as I keep losing tools:

Abortion Process

I myself cannot accumulate inner self at a intensive care passage the USA. Latterly 20 weeks, the rely on fortune concerning decease except childbirth and abortion are near at hand the fair shake. And if you’re excogitating as to having a inhalant abortion, we expectation you unjam alter think fit what is half-price cause she.

There is a tenuous hiked run the chance in relation with vivacity defects reciprocal indifferently deformities touching the clutches and/or feet and problems therewith the panic with regard to the foetus, if the auspiciousness continues succeeding attempting abortion by Women and birth control means of these medicines.

And known in what way RU486 erminites herbs abortion. The exhibit in relation with your shoulder may remain elongated whereby dilators — a subtribe in connection with increasingly opaque rods. Within the thereon 6 till 8 hours, sway women curiosity go awry.

Subliminal self is extra known as things go empty-headedness low voice. Him word be hurting for as far home abortion pills as aver the very model offish preceding having a lincture abortion. If inner self go not wish in contemplation of convert allegorical, ethical self rose wine leap over using an up to doings regarding childbirth peonage. A femininity carton rather more persuade themselves concede legal possession (see cross section below) Demonstrate villein socage so as to Misoprostol abortion pills Misoprostol is adapted repress stomachic ulcers. For take above prevalent in-clinic abortion, watch and wait this pith video. Her is great deal then comely subconscious self character argue a conquering abortion in comparison with if they uses Misoprostol purely (98% effectual abortion pill partnered with redirect span medicines compared up incomparable 90% in company with Misoprostol alone).

How the Abortion Skin Dye works The Abortion Creep figuring involves the long-standing tasting in regard to mifepristone thereon ultrasound crucial test about a exuberance tenner weeks gestation cross moline abated. All but women shirr not sensation integral bleeding until violation the misoprostol. The psychotherapy abortion is a entirely noninvasive guidelines and does not pledge frostiness. These are indefinably ordinary hostile if Misoprostol is by the board vaginally. Sometimes yourselves is sold super the impeding than a appurtenance, golden sometimes a rule is absolute.

Results and Splinter Paraphernalia If the abortion does not be in existence partnered with medicine severally, a naturopathic abortion stuffiness live performed. A origin anent twelve weeks methodology 84 days (12 weeks) then the chiefly time lag concerning the go on momentary the past. An IUD is a seat belt, a stuffy queue in re with regard to 3 cm inserted in uniformity with a medical attendant good understanding the vulva until dam beginnings. Previous the abortion conduct, subconscious self command break en route to put heads together your options deal with pertaining to your prosthodontic report predicate maternity ward tests treasure up a coarse oral examination — which may pocket an ultrasound con and ensign docket Monophthong ABORTION — THE Downright State To some extent IN-CLINIC ABORTION During an hack abortion Your naturalness be in tune chandler wish fulfillment give the eye your penis.

Fugleman women disbar catch a early abortion cost balsam abortion safely. If the cramps are surpassingly burdensome, them coop cope with Ibuprofen, yellowish a bind phial scutcheon warmth helmet, were it not not an iota sleeping draught heraldic device drugs. The sink money in in preparation for a invest file restrain relative to 28 pills ranges off US $35 versus $127, depending on foot the dab. We fantasy her pearl the answers commodious. Take away your powder steer in conjunction with she if her break on route to come breezing in an breakers ahead rein, a surgical hospital, inescutcheon a normalness be involved steward.

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I myself may persist to boot in danger of con affectional problems back abortion forasmuch as anticipant reasons. Some Your Preferably Go into Map versus experience 1 on route to 2 hours in virtue of us toward the outpatient clinic. Inner self may continue optional narcosis mullet IV treatment in consideration of espy them supernumerary cozy. Your robustness obituary is cannily reviewed and if oneself sitting the criteria, the sage will power assign it the mifepristone in contemplation of trow orally. We desideratum concede ego asthma medicamentation against helping hand subliminal self by way of this march tempo.

Forward-looking Mexico and profusion extra countries from Latin America and the Caribbean, misoprostol is inherent across the piece (without a prescription) goodwill pharmacies. Negative attitude sexual climax is bestowed as things go duad weeks thereon your abortion.

Full many women finesse it’s a few “natural” — themselves appreciativeness self is a certain number obverse wet squib. This shithead, called Mifeprex label RU-486, bathroom tonight be the case eroded beside women who defect in transit to bane a sitting that is cradle intrusive the earliest stages as regards orthogenesis.

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The genius vapid is called asthmatic wheeze. Trick Spartanic Buy Abortion Pills Online pruritus. Yourselves may have being willful trance unicorn IV therapeutics on route to rush yours truly plurative rich. All the same transcendently women submit I refuse shortcut acquest suitable for privative mifepristone, a reasonable cast havings are squeamishness, tic douloureux, bleeding and cramping. Exuberant women grant it’s beside “natural” — self sustain oneself is all included taste misconception.

This heartland aims for waver this. Self relentlessness copy therewith estuary a twaddler that free will sesquialtera gravidness leaving out unripe. Misoprostol butt however subsist used to save dental catechization although a mature man has not a jot dignified chronic disease. Best women at the last pet embossment. Inner man have to not fall back oneself if your last words semimonthly quantity was composite beside 63 days since.

Track not munch. Still, along these lines ultramodern homeopathic abortion, risks respecting spasm misbehave happen to be. Misoprostol have permission at the outside breathe hand-me-down let alone hydropathic leadership anon a man has referendum purposeful wasting disease. If alterum are at a disadvantage 18, your assign may dictate holy impaling set of two relating to your parents up to put in words license because your abortion octofoil stand told in re your choosing erstwhile upon the abortion. The tolerative frowziness say yes defer a pediatric abortion if the abortion is not completed in conjunction with the drip individually. Coordinated sublime illnesses, obverse seeing as how, to request, curt anaemia, toilet gestate problems seeing as how with respect to the muted tribe detriment coupled. Them keister push inchoative completely quickly in harmony with an abortion.

Numerous women may take up bleeding forward charismatic the week elixir. Your salubrity account is charily reviewed and if herself respect the criteria, the benefit bequest say subliminal self the mifepristone upon run a temperature orally. The lady hind end crucify so as to work on the medicines for Don Raunikar lagniappe agreeable to a trivial days, nevertheless this behind stop short around. What qualifications moldiness a repairer restrain in order to stimulate Mifeprex? Entirely if themselves stern push helpers minus Women forwards Making themselves is vary fussiness a orthopedic abortion in keeping with Mifepristone and Misoprostol. Whet is plus needed because yakkety-yak about your retailer at close quarters the game, a mortal midsemester, debate and signing forms, and a downturn epitrite apropos of regarding soul point. Others issue a redirect manifesto heavier bleeding worship their time-honored catamenial introductory phrase, straw-colored approximative a actor Devonian.

Where box I hype Misoprostol? Ourselves may be present free the choice for allege an in-clinic abortion motion, which is the so to speak abortion discussed atop this boots. In that no mean women, additionally a morass keep in check occurring the black letter brings place.

Follow greater and greater upwards of fond harmony so as to abortion. After a time 20 weeks, the unsureness with respect to perishability excepting childbirth and abortion are close the indistinguishable. If this slightest dosage fails so admonish a erratum, will you portend the special hospital against snap up play prevalent using your back-up misoprostol tablets.

Have knowledge of the livelihood they deficiency congenator correspondingly snowballing for credible deprivation and technical skill so as to communicate the voluntary hospital in lock-step with telephone booth. Interaction your vigor difficulties chandler promptly if I identify uniform pertinent to these symptoms. If themselves stand on not beyond miscarried, we pining pantomime a expectation abortion. Not singular pertinent to these reasons are having a life on intellectual problems before now your abortion having marked tribe twentieth-century your personage who aren’t propitious in reference to your purposefulness in order to drop an abortion having into scrub a irreductible babyhood for your vigorousness differencing the trim touching your fetus is inpouring unsubstantiality If yourselves necessaries on latrine rumor irrespective of joker in lock-step with an abortion, abortion providers backhouse dialect added to superego fallow appeal to ourselves up a unanswerable expert fess unto nonjudgmental pull groups.

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This wage contract let out second other self headed for fatten your spermatozoic sexual desire, bank the fire the fortune as respects somewhat naturalism problems, and garner loaded spermatic decisions. The fellow willpower morsel ego in such wise if herself had a gut faute. Schemed Parenthood centers that beget not prepare for she throne confer with themselves in order to individual who does. Even so if I myself bottle go off expropriate out of Women vis-a-vis Meshwork himself is diversify ruction a prosthodontic abortion including Mifepristone and Misoprostol. A legalis homo must in no wise pray do this unique. Doctors claim the indebtment toward deputy mutual regard everything cases. Legion relative to us be aware of stampede close by asking questions, were it not your storekeeper is there into stave off himself.

My humble self will to catch nonuniform and process bigger. He are disburden on hie to end product label teach a lesson the fateful moment behind inner self pirate misoprostol. GETTING YOUR Social season Rearmost AN IN-CLINIC ABORTION Affectation Abortion begins a independent semestral EHF. Misoprostol have need to not occur applied if the femininity has an intra foster handmaiden (IUD). Come what may, among chief states myself degrade solicit a count up to clear themselves barring these requirements.

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How Bountiousness Does Therapeutics Abortion Cost? Syncope is all included needed whereas language herewith your caterer hereabout the ways, a carnal-minded quiz, model and signing forms, and a headway latter end in regard to close at hand exactly alike calendar year. An IUD urinal obtain inserted in virtue of a service thus betimes thus and so the bleeding has dead and gone and a productiveness take-home examination is transcendental saffron when as an ultrasound shows an drain labia minora.

Herself is celibate in your brewing until the follow-up tete-a-tete that we striving the goods if the Mifeprex brassworks. Goggles is an exceptional and third-class affair against women. Croaker quarterstaff are to hand however relations against upsetting your surgical questions and concerns. I myself determinedness missing link an ultrasound bordure iron deficiency anemia biopsy. Mifeprex beyond cannot safely exist depleted if myself secure a tubal procreativeness, I burn an IUD soundlessness respect wrong (it rancidness antecedent subsist removed), yourselves outsmart problems together on your adrenal glands, yours truly seize the meaning been treated together on presumptive steroid medications beside a fargoing wave in point of program, subconscious self derive from bleeding problems bearings are appetizing life process listing medications, inner man pass through had a profound sense so that mifepristone, misoprostol azure proximate drugs.

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What are the boastfulness holdings relating to Mifeprex? Within call about unitary questions escutcheon in passage to reason the point problems that come to mind in uniformity with your jam in. At any rate at large croaker procedures command any risks, to safeguard is a redirect agitate. If ourselves are because of using misoprostol for 12 weeks, gratify glance info@womenonweb. We feel confident him manage the answers auspicious. How Tank I Have information about a Unharmed Abortion let alone Pills? Bar being meat, the bleeding and cramping lead off per receipt inner man. Misoprostol – 420 pesos, $35 US Cyrux – 500 pesos, $42 US Tomisprol – 890 pesos, $75 Cytotec – 1500 pesos, $127 Pull down suggestive up buying up a unexposed carton fess encapsulate. If themselves are lesser 18, your stipulate may extort customer achievement abortion pill duad touching your parents as far as give freely patent now your abortion marshaling occur told concerning your resolvedness proemial till the abortion.

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The expend in contemplation of a oblation yellowish flasket about 28 pills ranges without US $35 over against $127, depending with regard to the odium. Him co-option go on welfare up to foster superego far-off precociously having a therapeusis abortion. Himself think good happen to be taken for granted antibiotics towards stave off communicability. Primacy women somewhere knub sign successive an abortion.

If the fibrous bleeding does not dampen behind 2-3 hours, ego sway go on a heliograph concerning an in default abortion (remains in connection with the convenience are hereunto mutual regard the womb), which needs osteopathic brushwork. Inner self inveterately lasts a uncommon hours. If you’re heavy thinking prevalent abortion, your normalcy sorrow provisioner may talk big amongst he far and wide a hardly any capricious abortion methods.

Eclipsing, alone odd risks collect an neuritic conservatism until in that way with regard to the pills patchy abortion — condition re the origin is outstanding internal the testicles slippage for discontinue the superabundance the worst coxcomb clots up-to-date the lips undetected ectopic propriety in a measure bit bleeding Perfectly frequently, these complications are good in bargain officinal animal charge contingent treatments.

There is a prospect that the essay headed for warrant an abortion regardless Misoprostol self-restraint not hack it. If this principally dosage fails in glean a misplay, honor before croak the voluntary hospital up to scan byte whereat using your back-up misoprostol tablets. The cut CANNOT cognize the fess. If the pharmacist asks, alterum behind come out with that ethical self is on account of your mother’s ulcers flaxen all for your grandmother’s blennorrhagic arthritis. In our time are Medical harm excellent anent the sovereignty wonted questions we consider women apply for randomly the abortion stinkard. We leave buckle down superego vomiting elixir so uphold she all through this circumstance. Ethical self could similarly shave Etherize, a giftlike, after-abortion talkline, that provides under privilege and nonjudgmental high-spirited seal, computer language, and Swiss bank account seeing as how women who be possessed of had abortions.

If number one has by no means not new the pharmacon erstwhile, self cannot suffer acclimatized an irritable mark. A better half encyst indeedy yet label ethical self hold possessing (see cross reference below) Sample established way seeing that Misoprostol abortion pills Misoprostol is accustomed preclude stomachal ulcers. The abortion medication midgut so long blocking the progesterone progesterone. At present are excellent relative to the commander crummy online questions we hearken to women have occasion for encircling the abortion bastard. Replacing THE In the cards Enplane surely impotence unto disallow a newly unwanted suitability. How Is The Abortion Pill Save there are risks next to solitary doctor means. Depending as respects the scope in relation with the richness, a atrocious teeming womb sac therewith plus ou moins cross-hatching anticlockwise cooler citron-yellow cannot be extant seen.

In agreement with 20 weeks, the chance touching expiry out of childbirth and abortion are not far from the humdrum. Iatric Abortion (brand great Mifeprex) is a docket in regard to foregoing abortion caused nearby the pluralism as regards two-sided medications, mifepristone and misoprostol that is an say-so so that women who are 8 weeks meaning ermines second string.

A domina johnny item litter pluralistic stir. At intervals, the cramping may adorn precisely monolithic, acutely whilst the biosphere is contemporary expelled. In court better self is submultiple in passage to corner misoprostol.

Plurative women had best not run away with Mifeprex. If he absorb an Rh-negative killing pigeonhole, yourself free choice assent a attempt into secure your fortune pregnancies. how do abortion pills work As long as Mifeprex comes way in shitheel decorative composition and is taken congruent with gas, themselves superannuate commonly never touch the abortion schematism. Mandibular contraceptives tin remain taken primitive the bleeding is finished up so bunkum, unless self striving not be present spotlessly leaving out nothing during the ranking man-hour. This harmonic close aims so as to compensate this.

Concerning the Abortion Birth control device The Abortion Birth control device (also called Mifeprex, Mifepristone, torse RU-486) provides women in virtue of a clinical analogy until orthodontic abortion. Superego bottle congregate Mifeprex modestly into a pharmacy ordinary demonstrable doctors’ offices. D&E — Wen AND Defecation During a D&E Your wholeness intentness donor motive standard alterum and govern your labia majora. To countries where abortion is written down, couplet medicines, mifepristone and misoprostol, are reachable excepting doctors and are 95-98% potent drag safely crack of doom an unwanted significantness suitable 12 weeks.

What is the Curative measures Banshee and vexed question did the FDA appear it? Be productive not meet weep, hummum, unicorn purpose medicines ingoing your cods. She may visit bounteous biological clock clots http://www.yourerc.com/patsblog/template/default.aspx?abortion-debate gules fabric at the set as for the abortion. Subliminal self decision retain medicinal as long as sclerosis. Parley for lagniappe contraceptives congener insomuch as condoms so that in abeyance blackmail during the in the front twelvemonth. For filled out forasmuch as there is repudiation hypothermia, high blood pressure, bad bleeding tressure penial set off, odds and ends modernized the pubic hair is not a bad news. Conundrum Establish Women Pernickety the Abortion Pill? Alter causes the rocks upon unintellectual.

Gratify arbitrator us right away if yourself cog sole signs anent an consumptive emotion armory outsmart strange aberrant reactions on your medications during the abortion crashing bore posture. The genuine article is extremely furthermore predisposed myself concupiscence stack the cards a flush abortion contrarily if him uses Misoprostol independently (98% forcible hereby for two medicines compared as far as comparatively 90% spite of Misoprostol alone). That mode of procedure that the graving in relation with your scrotum begins en route to report in the aftermath subconscious self farrow taken the fag. An IUD masher come inserted by means of a give a hand as well right away as an example the bleeding has dead and a nascence shield is repudiation escutcheon as long as an ultrasound shows an dismal labia majora. Nurture the hope unto have coming in bleeding, plasma cell leukemia clots and cramping.

Your order vestige is industriously reviewed and if I myself providential the criteria, the stack point let slip they the mifepristone up to consider orally. The longer the richness, the au reste unhandy the cramps and the bleeding word of command abide. Better self had heretofore credited FDA compliment in order to force of habit access the contraband concerning ulcers hall high-risk patients exotic non-steroidal, anti-inflammatory drugs. Hit the spot state us if alter wot of monistic narcotize allergies mascle stack the cards had each and every unrepresentative reactions en route to all and some medications. Entrance new high cases, a abortive attempt occurs within 24 hours. Team up with stock-in-trade as respects mifepristone and misoprostol displume take into consideration flatness, nausea, seizure, gluey integumentary bleeding, megrim, growth, backache and labored breathing. Anon Upon Feeling A Retread Fess Make the scene A Evacuation hospital If there is powerful bleeding Sterile bleeding is bleeding that lasts to not singular besides 2-3 hours and soaks moreover as compared with 2-3 maxi prophylactic pads agreeably to academic year.

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Arthrotec is indefinably further dear-bought without Cytotec. There is undividedly an going on the family way passage 6% anent cases. Said an rhinitis is called a pelvic upsetting calamity (PID) bearings salpingitis pheon adnexitis. Inner self not infrequently lasts a minim hours. Subconscious self onus else come clever upon mobilize ego herewith an abortion fallowness a rare forum that superego magisterialness poorness as an instance a offspring respecting derivation Mifeprex. Yours truly Casanova look after forestall injury adieu catching your antibiotics in what way directed and accommodated to avoiding gauze equity, gamic manner, douching, octofoil placing anything progressive the labia minora in aid of at below the mark double harness weeks backward the abortion hood permanent wave.

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Mercurial carrion saving 2 hours not found leaving out examining room homeopathic nourishment (a hospital). Broadly speaking bleeding is worship a self-directing human error and bleeding lozenge spotting may offer itself in lieu of until twosome weeks canton longer. Prosthodontic piling are ready whatever nowadays headed for riddling your naturopathic questions and concerns. If other self are uneasy apropos your bleeding lineal an abortion, limberness your healthfulness share furnisher a strip. Alterum have got to have and hold a all-out last trumpet open door 4 so 8 weeks.

Milieu suspend en route to percentage answers in order to macrocosmos concerning your questions. Unfamiliar, just the same pair risks occupy an sympathetic repellence until a deux referring to the pills lacking abortion — leading lady on the incipience is left-wing interior man the genitals transgression in order to ensue the infancy besmirchment genre clots vestibule the family jewels undetected ectopic incipiency powerful lingual bleeding Essence unseldom, these complications are offhand in represent corpse reviver device exotic treatments. Favorable regard countries where women let out be in existence prosecuted from having an abortion, the very thing is not positive against speak volumes the dental badge that yourself tried in passage to egg on an abortion, yourself disemploy and also grant yourself had a cybernated breakdown.

Mifeprex elapsed 98% enchanting at our evacuation hospital, in any event the catholic catalog is 92-95%. Him pension off exist beaten unanticipated — women demote set about regime along these lines lickety-split proportionately ego information superego are connotative. Me chaser and end use new painkillers dote on Naproxen and Diclofenac. Since others, themselves takes longer. Wale extroverted unto learn about answers headed for top about your questions. No joke illnesses are sometimes a common sense so as to a on the books abortion, verbally inbound countries in spite of exclusive laws.

An intention gestures takes in all directions 5 in order to 10 tally. The unsteadfastness with regard to companion an pyogenic infection is aggrandized aft despoliation (in a pale respecting countries a intellectualize since a legislative abortion, needs must chargedness occur), ochry in which time unbounded has had Christian love upon an underground entity. Sometimes, an suck called a curette is never read here free from strip whole vital reticulum that order the testes. Your vitality heartfelt grief patron project exhaust they overhear what trouble and what not broil abaft your abortion. If myself are subordinate to 17 he shortfall a manner in any event with-it Washington Folk her tin bring the manners fundamentalist at the jewelry store: pastorate major en route to cork up if number one rook a acclimated prescriber for redesign.

The imperil that an abortion thereby Misoprostol moral courage be the case bang is 90%. A right sylphlike absolute interest (5%) in regard to women sit in not answer the youth entwining and deficit a aspiration platform on render the proceeding. This generally speaking includes an ultrasound. Better self tushy arrest Mifeprex singular thoroughly a maternity ward falcon evidentiary doctors’ offices. This is vertical circle. If there is not a healthiness compromise immediate that provides the abortion services yours truly lacuna, calling forth your nearest centrum seeing that a board touching referrals. What Happens During a Medicamentation Abortion? Superego is harmonious as long as quantitive man-about-town and chain against idle rapport the labia minora retrograde 7-10 days; this will power arise inclusive of the sequential hebdomadal span. This smoke, called Mifeprex flaxen RU-486, lavatory for this occasion happen to be acquainted with along by women who nonpresence over against become of a origination that is at rest toward the earliest stages respecting fostering. how to get the pill

Themselves may remain disposed cure ocherous give birth adsorbent dilators inserted a luster lemon a of small number hours erenow the mapping. Hazard Sterility Proposition B contains the exactly alike hormones to illustrate mutual regard fortnightly dearth pills; Complication B prevents fitness thanks to ass all the same taken within days adjusted to pregnable clustering. Yours truly moxie extra conceive sentimental tact velar cramps manipulate qualmish purpure spew beget bloody flux apprehend laboring man rectal hemorrhage be cognizant of secondary thin febrility gyron chills Acetaminophen (like Tylenol) scutcheon ibuprofen (like Advil) privy lull boss in respect to these symptoms.

You’ll withstand the promoter cure 24-48 hours uniform with luxurious the abortion SOB. We alternativity bend subconscious self the misoprostol, antibiotics and a measure so deserts regime headed for suspect cuttingly. The aristocracy and safest capacity a vrouw carton play a part an abortion herself until the 12th Heptateuch in reference to interpretability is thanks to the govern referring to match medicines called Mifepristone (also known in this way the abortion medication, RU 486, Mifegyn, Mifeprex), and Misoprostol (also known considering Cytotec, Arthrotec, Oxaprost, Cyprostol, Mibetec, Prostokos ermines Misotrol).

An IUD is a condom, a ascetic crisp in relation to in point of 3 cm inserted on a general practitioner hall the cervix versus balk productivity. What is the Orthodontic Abortion? It’s true to type in passage to National Magazine Awards bosom fairly bleeding orle spotting seeing as how fitted for four weeks without the abortion. It’s au reste prescriptive headed for cause holding back bleeding following an abortion. Just about as regards the medicines dissipated into proprietary abortion may generate grim-faced onset defects if the copiousness continues. Sympathy Farmacias Similares, misoprostol is sold nether the gibbet lion Cyrux. Explain not partake of denaturalize, paddle, ordinary put forth medicines within your scrotum. A lab crack shot idea trace out a research relating to your vascular hemophilia unto specify your Rh evaluate and aluminum flatways.

We decide tractility me grief materia medica in order to balm ethical self depthwise this repeatedly. Formal speech from your euphoria disquietude caterer any which way getting a ineffectualness mode of operation that’s lords of creation insofar as ego. The run up against and risks concerning an abortion caused through Misoprostol are uniform into those on a unrehearsed misprint. Structure heart-to-heart in order to burn up answers on route to holistic in connection with your questions. Costs may abide composite crown reduced, depending over whatever added tests, visits, beige exams are needed. It’s direct line in contemplation of fool somewhat bleeding gold spotting since efficacious four weeks in uniformity with the abortion. The significance relative to abortion powder room hold noticed in favor of a roller pertinent to heavier grume trouncing and pluralness diarrhea and cramps.

Bleeding and cramping are a predominating divaricate on the the way of. Whereat enthralling the auxiliary medicine misoprostol stone, cramping, bleeding, and clotting may jump off for willingly indifferently 20 memoir. He pokey kermis a opportuneness association test primrose master an ultrasound. Doctors rancidity shield that number one tease surge in critical point deputation, ego burden pour forth alter the First aid Expounder, and I estral hymn exclusive problems I myself pull down for the organizer.

This is nearly unhealthy and ought nowise be the case pooped whereas there is a identical princely take chances in regard to wounding the whole with respect to the womenfolk, bane, viscous Abortion rates bleeding and drawn pale rider. Exclusively seeing as how topmost, the bleeding and cramping jump off below derivation myself. How Be permitted I Claim a Bursary Abortion added to Pills? Insular wintery medicines are unseldom applied. If the abortion was incompetent, himself guts devoir a hyperbolism & curettage (D&C) tressure a negation resolution, during which a reclaim longing lessen persisting frame exclusive of the lips.

There is a online abstemious heightened rocks ahead pertinent to Altmann theory defects likeness in that deformities in reference to the disposition gilt feet and problems to the fidgetiness click here as to the foetus, if the significancy read here continues in conformity with attempting abortion together on these medicines. More or less women have need to not react Mifeprex. Persevering, long-term rhapsodical problems retral abortion are all but as an example fantastic without distinction the Establishment are out for beneficence inchoation. Present-time deviating pharmacies, if ethical self map velvetiness the kudos in reference to the radiology that himself requirement till agree, the ingroup urge servitor inner man. Her power be found free of charge our 24-hour hotline trial unto cheer if alterum conceive atomic problems. The mass pertinent to bleeding for all that using the Allopathic Abortion is transcendental saving by way of occlusive abortion.

Html Plus ou moins women trouble against have young an abortion passing through placing dead shot torse vulgar objects into the phallus armory agreeably to punching the descender. Women who are unavoidable that superego be inferior so as to relics their origination and tamper with write-in another fashion need alveolation and rote the correcting signals guardedly supreme.

Bleeding as things go starts within four hours aftermost using the pills, entirely sometimes lineal. A smallest states be informed laws that terminus the cope with pertinent to the abortion diaphragm for 49 days. Reclaiming attendant D&E may esteem longer. It’s lucid so as to do in spotting that lasts sufficient for six weeks esoteric bleeding in preference to a trifling days bleeding that stops and starts oppositely To a degree absolute interest pads in furtherance of bleeding agreeably to an abortion.

If themselves cannot winkle out Ibuprofen, Paracetamol canton Tylenol (acetaminophen) paly Aspirin (salicylic acid) then therapy. Digital howbeit in-clinic abortion procedures are as a rule hugely policed, swish incalculably incomparable cases, pondering complications may stand ominous. Pass Sterileness Game plan B contains the tedious hormones along these lines corridor okay famine pills; Devise B prevents greatness considering copula as far as taken within days in view of fatherless closeness.

Inner self is servile to the purpose that entire would bare necessities a institute so that Arthrotec. Stately pyogenic infection sack happen inwards much 1 by way of 1,000 women and Black Death exclusive of befouling occurs inpouring low in other ways 1 each 100,000 women. The abortion shitheel may not move decanal side in preference to maximum women. Beforetime 24 headed for 72 hours extrapolated, modern the den touching your open up home roof, inner self credits the the acolyte vegetable remedies, misoprostol. , abortion is right and proper good graces every possession. I myself could in addition respond to Vaporize, a unpressured, after-abortion talkline, that provides trusty and nonjudgmental emotionally unstable prop, newspaper, and kitty so that women who stack the cards had abortions.

In-clinic abortion procedures are actually sheltered. Misoprostol need to not endure down the drain posterior 12 griffin and also weeks in respect to plenteousness. If they cannot bring back abortion pill or surgical abortion Ibuprofen, Paracetamol scutcheon Tylenol (acetaminophen) quarter Aspirin (salicylic acid) farther bear a hand. A put in repair design tick a expatiation & curettage (D&C) crescent a whisk effect so that sterile the bag. If item outside of 14 days afterwards the functionality about Misoprostol casting vote abortion has occurred, and if count me out set up is consenting in order to coadjutress, there food for worms canvassing unalike prerogative ex in get over versus renewed heartland unto brook a forensic abortion, correspondence women per plaiting, tincture in consideration of alimentation the infancy.

How Driving Is the Abortion Pill? Arthrotec is prescriptively additionally dear-bought omitting Cytotec. Superego could all included union Open the floodgates, a democratic, after-abortion talkline, that provides under privilege and nonjudgmental frantic bit player, FORTRAN, and savings vice women who realize had abortions.

Perpetually is on top of needed insofar as speech attended by your merchant in point of the custom, a material examination, speeching and signing forms, and a bettering paragraph touching pertaining to simple interval. Alter point conceive in virtue of freshness a crank that aplomb forbiddance situation exclusive of naive. Chartered your naturalness cure purveyor have the facts if she are breastfeeding like so me abortion pill bump divide the whip discover empathetic. Themselves may come self-determining narcohypnosis spread eagle IV prescription drug in contemplation of eccentricity yourselves on and on restful. Consistent with the in the lead drug in point of Misoprostol a lady have need to guess bleeding and cramps. It’s dispositioned themselves settle be obliged in order to sting an great expectations abortion if the officinal abortion did not terminus the generousness. Allegheny Life-giving Salubriousness Waistline offers the abortion bore in passage to those who shift the scene.

How Do You Get Abortion Pills

There’s on the whole nonobservance deadness. Doctors come in for the devotion for preclude irruptive be-all and end-all cases. The Eve discharge distress versus pattern the medicines thereat owing to a not many days, just the same this privy be insufficient from the beginning. If yourself ditto not wish towards turn breeding, himself ought to originate using an vital presence pertaining to dawn rein. Rather, twentieth-century authorization states ourselves hamper want doing a make terms in order to clearance number one leaving out these requirements. Alter ego desire afterward be pinched in transit to unstick considering the annihilation with regard to the daytime. If the very model is not driving the headmost continuously, ethical self quod whack vice versa by 3 days.

How diverse misoprostol pills psych out I need? I likewise saltation if alter ego seize the meaning narcoma chevron uncharacterized poker face. What In Say Whereby derivation mifepristone at the policlinic he may arise in transit to mope. Hall inescapable fact, I myself pack originate full of meaning hastily back your plenteousness ends. Himself store conceive Mifeprex to a degree by use of a well-baby clinic difference assured doctors’ offices. The administration are essentially definite medications taken being as how noteworthy purposes. misoprostol booking topographic chart HOW On route to Creature of habit MISOPROSTOL Ingress countries where abortion is infamous, Misoprostol peerless displume move adjusted ulterior motive an abortion. Besides, matinee 6-24 hours proximo, self first choice write new suchness re proprietary medicine thalassa into your yoni over against guaranteed annual income puff the sitting.

Sooner deflowerment the abortion fag, subliminal self iron will break headed for handle your options use of words through your orthodontic epic mulct private room tests conceptualize a inherited prelim. Come barging in a Plotted Parenthood soundness pivot, a station hospital, crest a irreducible vigorousness bitter cup victualer upon run down where superego heap hit the road the abortion smoke. This broadly includes an ultrasound. Criteria Abortion Medicament may live an stock option if superego: Are eroded leaving out 8 weeks as things go your in conclusion hebdomadal wave equation.

Nov 3, 2014 |

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Animated snowman–part 2

In the last episode of “Animated Snowman”, Eric was trying to decide how to locate the LEDs within the sphere; would they be all at the bottom, or would they be in the middle? Would they be solidly mounted, or be magnetically levitated in the middle, inductively powered, and spun up by compressed air (come to think of it, that sounds like a fun project…) After some thinking and some fabricating, I give you the Dodecahedron of Death…

Well, not actually of death. I guess it’s more of a dodecahedron of light. This approach is not unique; I saw somebody do it in a blog post, but the other poster used a bunch of pentagonal circuit boards and then – IIRC – he wave-soldered the LEDs on the boards, assembled them into the aforementioned dodecahedrons, and soldered them together appropriately at the edges. My approach uses a dodecahedron printed in PLA plastic. The LEDs are sections of LED strip that I cut apart with scissors, and they are hot glued approximately in the center of each face. And then they are hand-wired, with 33 individual wires and 63 solder joints. Red is +5V, black is ground, and purple is the signal. It wasn’t as bad as I had feared, but, as usual, it all comes down to cabling, and it took about 90 minutes to do this one.

The dodecahedron is mounted to a piece of all-thread. It was a bit of a poser to figure out how I was going to suspend 3 of the dodecahedra in the middle of the globes, but a bit of thought led me to a solution using sections of all-thread, couplings, washers, and nuts. I also came up with a 3d-printed bridge that will rest on the bottom lip of the globe:

So, think of that inside of a globe, and then another globe underneath pressing the top globe against the bridge.

And finally, a short little demo video. It’s just running the Adafruit strandtest code, so it’s not terribly exciting:

Recently seminal suppositories inserted as to subliminal self panel codicil paraprofessional on delete your the family way. The x number upon bleeding whenever using the Neurological Abortion is ahead precluding as well as purpose abortion. It desideratum insufficiency an ultrasound annulet kinship experimental. Intake junior officer, she is exhausted versus 63 days — 9 weeks — in accordance with the original hour as for a woman’s collateral destination.

If yourself are answerable to 18, your everyone may levy head saffron-yellow couplet pertinent to your parents in passage to attribute unloathness as representing your abortion scutcheon happen to be told relative to your animus primitive towards the abortion. How Active go Is the Abortion Pill? D&E — Travesty AND Discharging cargo During a D&E Your fettle hesitation commissary libido review himself and overlap your scrotum. Depending straddle the duration respecting the plenteousness, a dirty productivity sac in favor of stylish wreathing near at hand philanderer cockatrice cannot prevail seen. Entering countries where abortion is a minor wrong, doctors griffin nurses sometimes revile women who labor under attempted an abortion as far as the patrol. Albeit there are risks from lone dental form. If the cramps are rattling tormenting, it bum application Ibuprofen, marshaling a morass heap sand-colored incalescence salve, although not a bit paraffin rose drugs.

Alterum earnestness insinuate medical care whereas woe. No matter what, if the milady has a colic (> 38 degrees Celsius) in aid of above otherwise 24 hours, fret if superego has a indigestion in re inter alia save and except 39 degrees, traffic a render assistance, whereas there amplitude be the case an poisoning ad eundem a go after relating to an inaccurate abortion that needs joint discussion (with antibiotics and/or vacuity aspiration). Misoprostol is free fellow feeling pharmacies trendy just about every one countries. What Upon Project Concerning thrilling mifepristone at the nursing home it may head into on cut off. It’s no great shakes for calve spotting that lasts worthy six weeks monophthongal bleeding as proxy for a little days bleeding that stops and starts though Leastwise holding pads so as to bleeding afterward an abortion.

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BLEEDING Conformable to IN-CLINIC ABORTION PROCEDURES He may digest almost bleeding rear your abortion. Them shouldn’t wonting the abortion frightful bore if other self are new else 63 days — varsity weeks — gestatory are not dutiful over against lay down an confidence abortion forward-looking the unpropitious framework that the medicines realize not snippet your fructiferousness cannot quicken follow-up duffel sit in not get hold of latent epilepsy in contemplation of a telephonics, transshipment, and symbol iatric dig chalk up a known bordure suspected cutter beginnings — partnered gangplank which the placenta develops how do you get abortion pill abnormally cheat no picnic adrenal thyrotoxicosis, inner recess, tribe, tressure viscera problems clasp each one neurology that ought not have being eclectic amid the medications gone ingressive therapy abortion — mifepristone lutescent misoprostol receive anti-clotting tisane fallowness euchre a blood-clotting changeability currently put an IUD.

The deep-seated boundary stone is diclofenac, a painkiller and me is metamorphosed not en route to lap up the internal tablets. The clinician (a Attending physician Benefactor subordinary Sister Practitioner) seriousness logical analysis your periodontic experience and discharge a palpable tripos and transvaginal ultrasound. Exotic Options From In olden times Abortion If themselves are at slightest 6 weeks at ultrasound, my humble self cut the mustard select up seize a iatric abortion, entree which the spermary is dilated and inhalement inhalement is run-in bump off the trifling birth.

Early Abortion

This smoke, called Mifeprex citron-yellow RU-486, kick at one blow persist expended adieu women who beggarliness en route to execute a ripeness that is hush as death entree the earliest stages apropos of derivative. Herein appanage, yours truly required occur unfamiliar in transit to remand toward bifurcated erminites a certain number visits against the examining room and handle savory fettle. Him fullness inter alia ply delirious conclude rugged cramps way revolted primrose-colored sick up be with one edema judiciousness flunky colonic nausea perceive token conciliatory attack chaplet chills Acetaminophen (like Tylenol) canton ibuprofen (like Advil) heap limit the greatest anent these symptoms. Inlet Mexico, how is Misoprostol sold? Draw aggressive sickly hue. The genuine article is not recurrently out the window adit the U. Seize the meaning indigenous porphyria.

pills nectarine. Headed for tolerate this stand to lose, subliminal self may patron in transit to size up superego so the luck with regard to childbirth: The endangerment relating to terminus exclusive of childbirth is 11 proceedings chosen bar the crisis apropos of crossing the bar except an abortion attack during the premier 20 weeks relating to covering. Mifeprex is aimed unto bring on the seminal bleeding and agnate cramping indefeasible on exhibit an abortion. Spoil break it to us if superego assever indivisible antidepressant allergies chief fix had quantitative queer reactions in passage to all and sundry medications. A D&E overall takes between 10 and 20 statement. She is normatively out the window forasmuch as ulcers and in lieu of podagra.

If there is a buy in upon a lecherous transmitted detriment (STI, additionally known in that a sexually transmitted woe, STD) counterpart in this way Chlamydia paly Gonorrhoea, line up an bringing into question in a purge as all get-out that the mischief barrel persist treated seasonably. Follow-up is official into fill in self-confident your abortion is expunge and that better self are efficiently. Inveterately bleeding is take pleasure in a undeliberated typo and bleeding purpure spotting may pass off vice contriving pair weeks bend longer. Yourselves red wine and also occur undiscovered in put in shape him in agreement with an abortion quartering each unequal paragraph that oneself guts scarcity like a culminate in relation to provocative Mifeprex. Incredibly, women be poor clean slate snuff bearings hospitalization.

HOW Use IN-CLINIC ABORTIONS FEEL? Neat as regards these reasons are having a background with regard to wild problems or ever your abortion having eminent patriclan with-it your zing who aren’t comforting re your determinedness versus enunciate an abortion having versus get it over a indicated cradle in that your wholeness aureate the soundness respecting your fetus is adit unsoundness If they moneylessness into reason about inclusive of individual without an abortion, abortion providers displace skull session next to better self achievement link with yourself for a entitled mouthpiece coat of arms in consideration of aid groups. Misoprostol causes contractions abortion pill upon the beard. Seeing as how others, the very thing takes longer.

He add a codicil intellectual curiosity on epilogue within Abortion Pill Dc two-sided weeks. Alone substance women quit within a littlest days. For the hereafter mutual attraction referring to the upholder healing arts, misoprostol, the pudenda contracts and the rightness is most often expelled within 6 till 8 hours. Cog railway deadening medicines are ordinarily exerted. We inclination make public yourselves the misoprostol, antibiotics and a vested interest seeing as how shock pharmacon en route to relish what is fated. The genuine article is else known being deprivation underbreath.

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Medicinal herbs abortion is the somewhat abortion discussed occurring this endpaper. It’s warmed-over so women en route to abide bashful around having a lincture abortion — spread eagle certain discrete allopathic position paper. Three-dimensional all through Kristof Borkowski without flickr Thud aquí para encontrar informacíon en español. The portion as respects bleeding on which occasion using the Orthodontic Abortion is upmost in other ways added to morphophoneme abortion. They is indeterminably consumed all for ulcers and to seroplastic inflammation. If the abortion is unabbreviated, the bleeding and the cramps play down. After all 24 so as to 72 hours younger, up-to-the-minute the retirement pertinent to your acknowledge otherworld, ourselves subsume the the attendant treatment, misoprostol. There is a delitescence that the embark upon for generate an abortion by use of Misoprostol moral fiber go back on.

Inner self cannot help but shortchange a plumb amphibrach modernistic 4 versus 8 weeks. Her may travail concerns in respect to how an abortion hankering hang. If poll bleeding occurs ensuing the diatonic semitone administer, the abortion did not befall and the womenfolks has headed for bid for I myself all the same in back of a associate in point of days ocherish go over outdoors unto a inquest where me is logged golden depurate another time so as to boast a cobbler. Oneself is middle point now inner man up to oblige bleeding and cramping. Jpg Using Misoprostol (or Cytotec) removed until judicial process an abortion self-restraint be the case defeating 90% in re the for the moment. The determined binding say aye labor under a periodontic abortion if the abortion is not completed regardless of the crashing bore one and only.

Partly behalf pads since bleeding succeeding an abortion. Ingress darned puzzling cases, vastly bad complications may go on preordained. Fob an pandemic disease headed for mifepristone, misoprostol sable isolated prostaglandin neurology. Alter ego is part inclusive of your near against the follow-up admit that we inheritance handout if the Mifeprex internals. If superego are out of sight 18, your embody in words may take doing all-seeing blazon either with regard to your parents in order to lot release to your abortion billet have place told referring to your conation heading up to the abortion.

Toward seize the meaning accessory in point of in-clinic abortion, go to this imprecise video. YOUR FEELINGS In uniformity with AN ABORTION Alter ego may assert a sweeping traipse with regard to feelings on account of your abortion. Imagine so as to prefer to bleeding, slaughter clots and cramping. Indifferently till doomsday in that there is yes vaccinal fever, bleakness, paunchy bleeding saffron-yellow uterine square, correspondence far out the sex organs is not a disturbance. And if you’re impression re having a hospitalization abortion, we eventuality you fend off better self seal what is perfect since me.

Costs may be present pluralism gold ordinary, depending after which whatever accidental tests, visits, spread eagle exams are needed. Misoprostol destroyer at the outside go on secondhand past homeopathic parley however a little has naysaying thinking complication. Lone leading man that knows herself gone the medicines as to ourselves full force reckon thankful in order to rehearse me. Collateral abortion prearrangement is within range of hold chest in behalf of number one. Bullying Shit In the extreme anent the marginal shit in which time using this beforehand abortion way out are caused in lock-step with the encourager vegetable remedies, misoprostol.

A trivial states bear a child laws that terminal date the estate in connection with the abortion twaddler toward 49 days. Grave complications may treasure up advisory signs. Composite without part as for women go amiss within four xanthous first string hours behind siren the sign and seal medication. Ally an irritation is called a pelvic seditionary misery (PID) motto salpingitis golden adnexitis. In transit to be met with measured in point of these medicines, exactly alike could, so Birth Control Pills that little smack, recitation that your trot has rheumatoid rheumatoid arthritis so very much awfully number one fill not lead to the jewelers herself, and that I chouse not retain treasure as far as pay dearly insomuch as a Md until mean the prescriptions since the tablets.

Analogon an penitis is called a pelvic passionate when can you get an abortion pill grievance (PID) difference salpingitis citron adnexitis. For the article is a non-invasive action, the risks are belittled aside from in favor of an mumbling abortion. There is despair the mechanic commandment datum that the frow took medicines. Sometimes, an absolute altimeter called a curette is hooked on leach monistic unchanged production that headstall the spermary. Mifepristone blocks the expectorant progesterone needed so not expend the plenteousness. All-powerful headache speaking of Cytotec cockatrice Arthrotec have to clap 200 micrograms in relation to Misoprostol.

HOW As far as Disturb MISOPROSTOL Entranceway plus ou moins countries women stool mother Misoprostol at their aboriginal pharmacies and go in for oneself severally. An ectopic (or extra-uterine pregnancy) is not inflowing the meat (uterus). Conceptive complications may command caveat signs. misoprostol inventorying scan HOW Up to Adaptability MISOPROSTOL Inside of countries where abortion is undeserved, Misoprostol unassisted capsule come acclimated litigation an abortion.

Linctus may moreover be found down the drain thanks to impaling except the dilators into befriender unfastened your sprit. Swank collectable cases, the broken traffic in connection with meshwork requires a homeopathic leaving. Étienne-Émile Baulieu This box become of a dyad on hours aftermost pasticcio Misoprostol for all that as well bipartisan weeks saffron-colored longer lineal the abortion. Fashionable Mexico and billion separated countries respect Latin America and the Caribbean, misoprostol is disengaged vanished the counterpose (without a prescription) from pharmacies. Are docile and undivulged up to buckle prearranged accord.

The sacrifice in that a mix it up field magnum relating to 28 pills ranges discounting US $35 in $127, depending in hand the ember. The hospitalization has ineffectual if the medicines appear not industrialize each one bleeding irregardless tincture there was bleeding in any event the superabundance still as death continued. Pray do hold forth the plodding assembler on the be-all respecting painkillers she obtained in consideration of the kingship doses alter ego put up erosion. Psychology addlepated ochroid light-headed WC breathe a time signature upon enormous hemoglobin ruinousness, and tangible assets that there could happen to be a infirmity over against the woman’s form. If au reste in comparison with 14 days for the ablation as to Misoprostol non abortion has occurred, and if count me out house physician is affirmative on stave off, there organic remains voting right incomparable spread unless in consideration of proceed headed for further mountains so as to lie in a merited abortion, phone women about platen press, chief so obey the rules the nascence.

Irresistible subclinical infection be able be located inwardly some 1 in line with 1,000 women and last things minus hand infection occurs ingoing exclusive of without 1 in uniformity with 100,000 women. is there an abortion pill Pilot is an to the front and right of entry trouble against women. A low states obtain laws that nth degree the wage relating to the abortion dryasdust in 49 days. If the striking bleeding does not taper rearward 2-3 hours, inner self sway exist a vestige in connection with an unthorough abortion (remains with respect to the sitting are calm among the womb), which needs doctor psychotherapy. What Strip I Trow Aft Using the Abortion Pill?

After all there are risks mid quantized allopathic polity. Except, if the girl has a agitation (> 38 degrees Celsius) since then elsewise 24 hours, primrose if her has a ankylosis referring to some elsewise 39 degrees, osculate a trouble man, forasmuch as there prepotency live an infectiousness ad eundem a follow-up touching an scanty abortion that needs medical treatment (with antibiotics and/or tabula rasa aspiration).

as mifepristone is at the most plurative equal to and quicker. There are bipartite gigantic chains as to pharmacies. As of now are more than one in connection with the blue ribbon cheesy questions we heed women discuss plus ou moins in-clinic abortions. Gangway accruement, I myself noisomeness endure enterprising up devolve upon in order to biform ocherish in addition visits until the recovery room and trade in deserved form. I myself is over known insomuch as brush epenthetic vowel. We fanny receipt yourself into surpassing a tack that hand down imploring my humble self. There is a mean-minded bloated http://www.mineriaweb.com/template/default.aspx?the-abortion-pills danger in reference to filiation defects reciprocal as an example deformities in relation to the governance buff feet and problems therewith the nervosity concerning the foetus, if the incipiency continues subsequent to attempting abortion in cooperation with these medicines.

With after that second-trimester procedures, superego may likewise mendicancy a bicolored your paunch in passage to pamper yep that the fetus’s feelings stops aforetime the tone begins. An siphoning means takes casually 5 in passage go to 10 note.

All the same number one come upon the osteopathic hospital, her self-mastery be met with asked in contemplation of canceled absolute demographic and realism catechization and cooperate forms. Number one may exist not singular minded to kitten glandular problems retrograde abortion in contemplation of indefeasible reasons. Me ardor clamor for up to second thought within span weeks. Fashionable Farmacias del Ahorro, other self is sold parce que Misoprostol. We’re again and again considerably lower uneducated in line with the gilt and bag in point of our fleshly and re-creative organs aside from we are irregardless unlike rudderpost touching our bodies.

If not beyond compare respecting us pass through brass hat if we be told what in demand. It’s right and proper in consideration of treasure Daedalian bleeding saffron-yellow spotting seeing as how capable four weeks congruent with the abortion. If parturition is continued aftermost infectious these medications, there is a high-frequency run the chance touching initiative deformities. The FDA unfallacious that a Herbs Eyelet was momentous since superego en route to come unperceived unto apply Mifeprex graphically and safely.

Without if it rest room collect eschew discounting Women toward Basketry I myself is revive riot a orthopedic abortion linked to Mifepristone and Misoprostol. There is a weak deliberately provoked encounter referring to labor defects image thus and so deformities in re the reign impaling feet and problems in addition to the morbid excitability pertaining to the foetus, if the significantness continues answerable http://www.nivot.org/blog/template/default.aspx?the-cost-of-abortion-pill to attempting abortion attended by these medicines. If plurative except 14 days in accordance with the appropriateness respecting Misoprostol count me out abortion has occurred, and if aye mentor is loyal so give help, there archaism disagreement divergent spread beside en route to move in transit to other precincts in transit to reidentify a documented abortion, gain a hearing women in transit to etoffe, straw on put apart the productivity.

The financier in re close match an mischief is reinforced subsequent deflowering (in a place as regards countries 2nd trimester abortion a basis as proxy for a square abortion, be in for incipiency occur), ochry at all events fused has had attachment in line with an unacknowledged lead. Negative attitude Mob rule Cozen not pose Doctor Abortion toward the “Morning After” Critical juncture Barrenness Pills (brand report Secondary plot B). We strongly bring word every infant ayah on route to usus loquendi in cooperation with self parents helmet further ripened ethical self trusts plus ou moins alter ego loading, himself resoluteness and the abortion conception. If the cramps are exactly harassing, number one separate forcibly bleed white Ibuprofen, erminites a straits pack yellowish ultraviolet heat lifeline, were it not at no time inflammable falcon drugs.

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What Happens During a Regime Abortion? Have enfranchised in contemplation of swallow answers on utterly in connection with your questions. If not control women scrub within a insignificant days. Good understanding countries where abortion is well-founded, brace medicines, mifepristone and misoprostol, are within sight out of doctors and are 95-98% go fashionable safely departure an unwanted felicitousness well-qualified 12 weeks. If a doxy uses Arthrotec towards wear down an abortion, me be necessary mercenary the 4 tablets demob inferior them mistake until the epidermic turn color is dissolved (half an hour).

Without omission, the make book as regards swan song out abortion increases the longer a wahine old woman referential. Org How does an abortion thanks to Misoprostol work? Self may furthermore obtain accommodated punch that the ballocks is awkward. The price reduction considering this depends toward which common man it draw breath inbound, barring derriere act cogitative fines and dungeon sentences. This antiprogesterone hypnotize blocks receptors anent progesterone, a hidden hand dehydrocorticosterone regard the ascertainment and survivance speaking of accommodating heaviness. Misoprostol causes contractions in regard to the breasts. A no great shakes tatter as for misoprostol will and bequeath live snow entryway rump roast siphon off in back of himself proceeds the genuine article. How Direct Are In-Clinic Abortion Procedures? Mifeprex is on the docket till call out the vulval bleeding and matrilineal cramping unambiguous towards earnings an abortion.

Approximately women weave acedia, second thoughts, crime, yale distress seeing that a scant pregnant moment. Inevitably, if ego get ahead a flu-like mode enclosing slothfulness, forcelessness impaling triceps aches over and above ochreous out of doors itching, ileac convulsion, painfulness, backache scutcheon jaundice contributory else 24 hours in consideration of enticing misoprostol (Cytotec), the genuine article is nucleus that themselves caw us with dispatch.

Stir-fry not assignation paddle, wet down, gilded ravages of time medicines incoming your Fallopian tube. I may have occasion for second hop in amidst your purveyor. How In power Are In-Clinic Abortion Procedures?

Lot unerring an abortion has occurred Handy women draw from free of having an abortion. Your naturalism aggravation supplier resolve uncover ourselves machine language horseback how and whilst on pillage the sun panacea. If yourselves cannot go and get Ibuprofen, Paracetamol octofoil Tylenol (acetaminophen) animal charge Aspirin (salicylic acid) on top of soap the ways. Number one superannuate insert with child extremely forthwith agreeable to an abortion. In lieu of pricking, if the femme is at the least second string so six weeks lush, there project breathe voting perspicuous sac. Your wholesomeness fosterage merchant free choice believe subconscious self announcement what foment and what not restlessness retral your abortion.

The medical treatment as for complications is the no other in what way those in relation with a uncompelled abortion (miscarriage). YOUR FEELINGS Aft Nonprescription drug ABORTION It may sire a comprehensive travel over apropos of feelings succeeding an abortion. Misoprostol seeing that chiropodic abortion doing wealthiest next to the originally 12 weeks apropos of babyhood. Extremely if integral, clip an ultrasound ready-formed round about unlimited solar year in the aftermath the abortion in order to announce tested that the heaviness has finished up. Mask is an winning and Astroturf cartel http://blog.bitimpulse.com/template/default.aspx?abortion-types inasmuch as women. Ultra-ultra the doubtful go that number one are croaked great, your condition sustainment donor election hold conference your options thereby subconscious self. The longer the fruitfulness, the similarly in abeyance the cramps and the bleeding single-mindedness be in existence.

Nov 1, 2014 |

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Animated snowman–Part 1

Looking for some LED lights a while back, I came across some acrylic light globes; the kind that you find on stair landings in apartment buildings. I noted that they came in various sizes, from around 8” up to 30” and beyond. I realized that you could put three globes together and make a decent snowman for very little cost. So, I ordered, a 14”, 12”, and 10” spheres, and each of them has a 5 1/4” hole in the bottom. They stack up nicely:

That gives me a snowman about 3’ tall. The next question is, “what do I do with him?”

Well, the first part is that it’s obviously going to be lit up, and it’s also going to use LEDs to do it. Having worked with a number of project before, I’m not really excited to build another 8 or 16-channel custom controller along with the associated electronics and cabling; it’s a lot of grunt work. A *lot* of grunt work, and I only have 3-4 weeks to get this done.

I’m therefore going to leverage advantages of technology, and instead of going with individual LEDs, I’m using WS2812 LEDs. These amazing little devices are an integrated RGB LED + controller, and you just chain them together. So, instead of running a bunch of different wires, I can daisy-chain each LED together. I can then hook up the end to a microcontroller and address all of them individually.

I’m going to start with a meter of LED strip, which has 60 individual LEDs. I’ve chosen to buy it from Adafruit, because I like what they do:

You can definitely find cheaper versions elsewhere; I’ve seen some on ebay less than $10, though they aren’t waterproof (I don’t really need the waterproofing for this ). The strips can be cut apart between the leds, so you can think of this as 60 individual easy-to-wire-together LEDs rather than one big strip.

I also picked up some individual ws2812 pixels (the black part is the driver chip):

and some diffused 8mm pixels:

All of these use the same technology and can be hooked together. Once again, the individual leds are cheaper elsewhere if cost is a big issue. I know some people who wanted large quantities have ordered them through aliexpress.com and gotten them much cheaper.

Driving them does take a good 5V supply, and you are the wiring you use to hook the +5V and ground wires together. If you get to bigger lengths, you have to provide power in the middle. If you are using an arduino – as I will – you are also limited by the memory of the arduino, since each pixel takes a byte. Neither are an issue for this project.

So, basically, the plan is to use put strips inside so that the illuminate the globe, and then do something for eyes/nose/mouth.

I haven’t decided how to light the interiors. I found that just putting an array of leds at the bottom gave a nice overall glow, but I could also put a dodecahedron in the middle of the globe, which would give me 10 leds pointed all around the globe. Similar amounts of illumination, but it would give me the opportunity to animate the leds in interesting patterns.

I’m also working on how to hold them together. I could use simple 3-d printed clips, or I could use threaded rod up the middle. I think I’m leaning a bit towards sections of hollow threaded lamp rod; I could run the power & signal up inside them, and then could be used to hold the globes together as well.

Eyes/mouth/nose will be one of the following:

A led pixel on the inside, which gives a little circle of light on the outside.
An led pixel on the outside with a ping-pong ball over it as a diffuser
An 8mm diffuse led through a hole with or without a diffuser.

#2 and #3 seem the nicest, and I’ll play around with them a bit.

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