Alan Parekh

The giant MP3-Player LED display panel

This site includes the board layout and code to make this ATmega128 powered LED sign. If you speak German here is the original German site. “Again such a crazy project of me. It began with the fact that I with EBay a mountain LED of modules ersteigert. And from this this enormous LED became panel. Whom is too enormous, there is also a small brother. Here times the technical data:

PIC Microcontroller Ring Tones

Want to add a touch of cool to your next PIC microcontroller project? Why not have it play some ring tones. There is full source code and an explanation available. “Using only a speaker and decoupling capacitor, it is possible to generate tunes or melodies from your Microchip PIC16F87x processor. A timer can be used to generate each of the eleven musical notes and another timer can be used to

$10,000 Dual T1 Wireless Transmitter

Ever want to know how a WiFi site works, this video gives some interesting behind the scenes information. For about $10,000 you can have a dual T1 wireless transmitter that can serve 200 customers. “We visit a commercial “WiFi Site” and look inside to see what makes it work. Plus, there’s a short segment on “Emergency Power”.”

Tactical Sniper Watch

When is a watch more than a method of telling time? When it can calculate ballistics trajectories! That is what the Tactical Sniper Watch can do. The ENIAC was doing the same thing but it was a bit bigger. “Calculate point of impact by inputting critical variables that determine elevation and wind adjustments. Works on all MILDOT, TMOA, SMOA and clicking rifle scopes. Punch in data about the ammunition you

Peltier CAN cooler

Valojuova from Finland has created a crazy DIY invention for cooling a can. The Peltier CAN cooler uses the peltier effect for cooling. Looking to cool a bit more with a peltier device? Check this out. “PWM controlled peltier cooler, 12V, 80W peltier. I can holder was lathed from aluminium by some other students. I just gave him the blueprints. Hot side is cooled with Igloo 7200 Light. I haven’t