Month: December 2005

HOW TO – Build an iPod Shuffle FM transmitter

HOW TO – Build an iPod Shuffle FM transmitter

71378034 631788530DMAKE photo pool member Shufflehacks writes “I built my own radio-transmitter for my Shuffle, I nicknamed it “iMouse”. It works quite easy, there is a power switch on the bottom to turn it on. Just press play on the Shuffle and tune your radio to the right frequency. The range is about 100 to 150 meters.(500 feet) Now I can enjoy my Shuffle on my car stereo.” Link. It’s made out of an old mouse, excellent.

Speed controller circuit for radio controlled boats…

Speed controller circuit for radio controlled boats…

Modelboat“This application note describes a circuit designed to control the speed of a dc motor used in radio-controlled boats. The electronic speed controller (ESC) is a “no-brake, forward-only” controller. I wanted to keep the part count low and the circuit simple so a couple features were sacrificed. The circuit does not have: over-current protection, over-temp protection, polarity protection, or over/under voltage protection. All the parts can be obtained from digikey distributors. The circuit was designed with a popular 12-cell model boat motor in mind (graupner speed 700). This project was my first attempt at using Bascom-avr and Atmel microcontrollers. ” Thanks JasonR! Link.