A couple notes on the electrical design here. Check out the circuit diagram above to see how this goes together. Basically very serious double-sided tape. I used a roll meant for mounting glass in shower doors, which is clear and very, very sticky. Ruler (A T-square is super helpful, if you can get one).A 1/8" hole is the right size for the 4-40 hardware we've picked out. Drilling through acrylic with a wood drillbit is a nightmare you'll almost certainly break the acrylic. You only need this for one step (connecting the Imp), so you can borrow one from a friend if you don't have one of your own. You'll program the Imp from your web browser.
TOGGIES WEATHER INDICATOR FULL
This is the full wish list you can make do without having every last one: (Or more accurately, you've already spent your $10 and don't have to spend it again) If you have spare machine screws lying around, you save $10. I picked up a plastic picture hanger while I was at TAP for $0.45.Īpproximate parts cost: $77.00.Home Depot and similar may also be able to help out with this piece. I got mine from Tap Plastics in Mountain View they gave me 9 of them for $8.00 (call it $1.00 a square). Two 3"x3" squares of 1/8" Smoked Acrylic.This will set you back a whopping $0.15 or so. Radioshack or Fry's keep these around, too. You'll want one that can handle 1 A or more. We use this just to do a little hack to make the imp play nice with the Neopixels. You can use bigger or smaller, but I'll assume for the sake of mechanical design that you're using the 24-pixel variety, too. We'll be programming the imp entirely over WiFi. You'll need a Mini USB Cable, too - it's only for power.An Electric Imp card and an Electric Imp Breakout - About $37.50 total.The weather indicator is really handy - let's build one! I'm really looking forward to seeing what else it can do. By the end of the day that I built this project, it could already also be used to track packages or tell time. My theory was that the geeks I work with would be unable to resist writing other applications for the shiny new toy, and it turned out I was right. It turns out to be a snap to build, and not expensive! This seemed as good a place as any to start, so I connected an Adafruit Neopixel Ring to the internet with Electric Imp, cooked up some animations, and set it up to grab the forecast from Weather Underground. I've had a theory for a little while that just a dozen (or two) pixels and an internet connection are all you need for a seriously vast number or applications. When it comes time to make the trek down the street to get some lunch, I'm never quite sure what I'm going to find in the great out-of-doors. In my case, my coworker at the desk across from mine has the window seat. We can't all have the desk next to the window.
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