Building radio receivers from scratch is still a popular project since it can be done largely with off-the-shelf discrete components and a wire long enough for the bands that the radio will receive… ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

I have started this joystick controller experiment inspired by the need of a simple DIY joystick which could deliver greater flexibility in the possible designs. Hardware component basis is very ...

Arduino Esplora -- DIY Handheld Gaming Platform? This is a great time for anyone interested in hardware and low-level programming, and things just keep getting better.

CodeBender is a browser-based IDE that supports uploading to nearly any Arduino board. You can use the program to copy sample code, browse code uploaded by other users, and even store private ...

[MJKZZ] sends in this entertaining little tutorial on building a small automated cannon out of a syringe. He starts the build off by modifying an arc lighter, the fancy kind one might use to light … ...