Constructing a 1-Key Keyboard

The need for an interaction designer to make cheap, quick, and dirty prototypes is the basis of building this 1-key keyboard as the easiest way to interface a single switch to a computer.

Attaching AVR with Z80 Machine Emulator

The project aims to emulate an old good Z80 machine on an AVR ATmega88 microcontroller to be able to run software that has to be CP/M machine emulated.

Building the Urban Sonar Device

As an individual moves through the urban development, his experiences are sensed and that information is recorded for later reviewing by this personal space monitoring system known as Urban Sonar.

R/C Pulse to PWM Converter with 2 Channels

Two easily formed R/C pulse signals are converted into a PWM signal suitable for driving small motors as it uses an AVR chip and software.

Cuckoo Clock Used for Developing Twitwee Clock

This Twitwee Clock project is built from a wooden cuckoo clock and has the ability to connect to Internet wirelessly while constantly checking the status and updating on Twitter.

Burglar Alarm with Twitter Updating

The project uses an Arduino to create a Twitter burglar alarm which can tweet in the event of an intruder entering the house without authorization.