Dave Hayden
fake Geiger counter
My friend Anmarie asked if I could make a fake Geiger counter for her band's CD release show tonight (littlehexes.com/). Here's what I came up with.
The "wand" has a pressure sensor under the thumb. The guts of the thing is an ATmega chip on a dorkboard which reads the sensor input and pulses the meter, speaker, and light if the random number generator picks a number less than the wand's input value. Dead simple, but it works great.
fake Geiger counter
My friend Anmarie asked if I could make a fake Geiger counter for her band's CD release show tonight (littlehexes.com/). Here's what I came up with.
The "wand" has a pressure sensor under the thumb. The guts of the thing is an ATmega chip on a dorkboard which reads the sensor input and pulses the meter, speaker, and light if the random number generator picks a number less than the wand's input value. Dead simple, but it works great.