While there are a couple of open-source brushless drivers already available, [neuromancer2701] created his own brushless motor controller on an Arduino shield.

The 4n25 chips keeps the controller circuit isolated from the Arduino’s electrical circuit. The Arduino also has two push buttons connected to it. These buttons are mounted to the PS3 controller.

The Esplora can emulate traditional input devices like a mouse or keyboard, and Arduino envisions it being used for applications beyond gaming, including as a controller for musical software, or ...

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.

Why this hasn't been done before is a mystery to me. This little hack project by Kellbot of NYCResistor takes a rolling ball, an optical mouse, a gutted PS2 controller, and some Arduino hacking ...

A perl script running on the iPhone will then send the command to the Arduino. When it receives the start command, the Arduino will ground the wire to the remote start and fire up the car.