Month: October 2006

Flashlight pong

Flashlight pong

Here’s yet another way to play pong, using two flashlights and light sensors to control the paddles – neat… [via] – Link. Related PONG: More Pong projects @ MAKE (there are a lot) – Link. Homemade PONG watch! – Link. Pong hat – Link. Mindstorm Pong – Link. Electro-Mechanical Pong – Link. Plasma Pong – […]

Relay charging project

Relay charging project

Here’s a pretty interesting way to charge a lot of batteries with just one charger, Kalikast writes – “The following pages describe using relays with a high-current adjustable 13.5/15V power supply to automatically charge EV batteries one at a time, instead of concurrently in series. It will only work if you are not in a […]

BEAM robot – flashing eyes

BEAM robot – flashing eyes

Antics writes – “BEAM Art often features flashing LEDs. Here is a simple circuit borrowed from BEAM to flash a couple of LEDs. This is a modified version of Ben Hitchcock’s BEAM cricket. Pictured is the ‘flashing eyes’ part of the circuit. Unfortunately his site is gone and with it the original schematic. I backed […]