Star Trails

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  • 12/18/2012 @ 11:04 pm

Star trails are the paths left by stars as seen from the earth. As the earth spins, the stars appear to move and circle in the sky. To capture the star trails you need a camera, a tripod and an automated trigger for your camera. The Arduino, a relay and... Read more »

Monkey Couch Guardian

My cats like to jump on furniture and shed their fur, which ends up on my clothes. To stop them, I’m using a Monkey Couch Guardian. I made it from one of those old-fashioned cymbal-banging toy monkeys, modified with an inexpensive Arduino microcontroller and a proximity sensor. Now when a... Read more »

USB Watchdog for Linux with Arduino

A watchdog device monitors your computer to see if the OS is still running. If the system has locked up it will reset the system. High end servers come with built in watchdogs, for basic servers and workstations you can pick up a PCI card version for $100+ depending on... Read more »