Historical record of past 4-H projects.
Colorful display made from serially addressable LEDs for 4-H project.
Custom front-end gallery to Google's Picasa photo service.
Simple stereo audio amplifier for powering bookshelf speakers.
High speed sound trigger for firing photography flashes following loud noises.
Two player game which tests visual reaction time.
Simple tone generator controllable via skin impedance.
Demonstration showing relationship between capacitance and oscillating frequency.
Simple game where one moves an arm up and down to position balls which turn on LEDs.