Arduino

Dice reader, version 2

Dice reader, version 2

The last time we covered this neat die reading machine by Steve Hoefer, he had a very nice design that was starting to be able to determine the number of a die placed on it. Well, he swapped out his problematic photoresistor sensors for an infrared emitter/detector-based scheme to produce version 2, which he claims works with almost perfect accuracy.

Sleepy Arduino saves power

Sleepy Arduino saves power

Got a nice Arduino project that needs to be battery-powered, but you want it to keep running for a long time? Well, the fine folks at Lab 3 might have just the solution for you. They hooked up a photoresistor and a buzzer to an Atmega 168 microcontroller running Arduino to make a digital nightingale. […]