This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute ...

Proving that astrophotography doesn’t have to break the bank, [Gerald Gattringer] has recently documented his DIY “barn door” style star tracker which is built almost entirely from scratch. Short of ...

If you have an outdoor pet and are curious what they get up to during the day, this TinyDuino-based collar may be just the right project for you. It doesn't let you track location remotely, but it ...

Over at DSS Circuits, Wayne Truchsess has posted a great article about a "Honeypot" he built inside an empty PS3 case. The device includes a GPS for tracking its position, an accelerometer for motion ...