GreenTerraFirma has some very cool links regarding DIY power generation and sustainability projects. This page deals exclusively with wind turbines, and posts several videos on how to make your own out of two 55 gallon drums. The project is dirt cheap if you can source parts well, and doesn’t take a lot of specialized tools either. The author machines gears out of some cheap cutting boards, but mentions that you can make an equivalent drive system out of belts and pulleys, which can be store-bought.
Filear.com posted a cool hack that can be done in an afternoon if you have the parts handy. The author built a DIY oscilloscope using an Arduino Pro Mini and the LCD from a Nokia 3310. The Arduino is wired up to sample from an ADC port and writes those values to the screen to create a waveform. Two potentiometers control the sampling speed and input voltage for approximate time and amplitude scaling just like the real thing.
Dave has created a Christmas monster and one of the most complex and creative DIY ornaments we’ve seen. He started with a Christmas tree drawing, converted it to a PCB, and designed in 15 RGB LEDs to provide twinkling multicolored cheer during the holiday season.
“So what”, you say. “Let me search Instructables for you and hand you a list of 1,000 other DIY electronic decorations. Stupid EngBlaze”.
Not so fast, folks.
Building on our theme of cellular hackery, Dave has a three part series on his blog dedicated to the creation of a remote start system for his car. What’s the catch, you say? Oh, no catch, no catch at all… except that he wired his remote start to work via cellphone input, so he can give his whip a call before he leaves work and climb into a warm car immediately upon arrival at the parking lot.