Computer-controlled Ambient Orb

Wednesday, November 26th, 2008

Ambient orbs can be used to display all sorts of information, such as new email or voicemail, the weather forecast, and a number of other items. This one is based on an ATmega8 and can be controlled via serial communication. Includes a simple python script for controlling the color of the orb. via Embedded Projects

Hall Effect Levitating Magnet

Monday, November 24th, 2008

This levitating magnet uses Hall effect sensors and a microcontroller to adjust the strength of the electromagnetic field. This happens so quickly that the magnet seems to just hover there. Google translated project page via Hacked Gadgets

Simple AVR PWM Motor Control

Monday, November 24th, 2008

This is a simple PWM DC motor controller using a MOSFET H-bridge and an AVR ATmega8 microcontroller. The motor was taken from an old cassette player. Looks like a good way to build a simple controller for your next project. via Make