Has this ever happened to you? You wake up in the morning and realize that you're terribly late for work/class/your weekly pedicure/whatever. You throw on a t-shirt and flip flops, sprint around your warm, heated house grabbing your belongings, and race out the door...where you suddenly find yourself surrounded by a cold, biting wind encompassing you in a horrible vortex of snow. You're completely unprepared for this weather, but it's too late to go back now. You must suffer through the wintery day, freezing and looking like a crazy person who can't figure out how to put on a coat.
This instructable will show you how to create your very own CoaTracker, an interactive coat rack that tells you the local weather conditions with a single glance, so you'll never again be unprepared. The CoaTracker is not only useful, but also an aesthetically pleasing and thoroughly modern addition to your home.
Step 1: What you'll need
To begin, you'll need to order an Arduino. LadyAda (www.adafruit.com) has a great starter kit for $65 that will provide you with everything you need to use the Arduino.
You'll also need to buy:
4 5V Relays (available at RadioShack)
4 3 ft pieces of Electroluminescent Wire, small to medium sized, any color
2 Inverters (you can order the EL Wire and inverters from any EL Wire site, I ordered mine from www.elwirepros.com/)
Now for the construction stuff. You can get creative here, but this is what I used (available at most arts and crafts stores):
1 packet of 4 12"x12" cork boards
1 flat wooden coat rack with 4 pegs
Now, you should be all set to get started!