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 (RPM). You don’t need much… ...

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 fro… ...

To put it together, you'll need a TinyDuino microcontroller (much like the Arduino Uno, but smaller), a GPS TinyShield, and a microSD TinyShield. Check out the full build instructions at Make.

PS3 Burglary "Honeypot" Powered by Arduino, GPS, Wireless Modem Over at DSS Circuits, Wayne Truchsess has posted a great article about a “Honeypot” he built inside an empty PS3 case.