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December 27, 2012 AT 2:00 am

Star Jar: Geiger Counter Triggered LED Decoration

Instructables user nikkipugh posted a new guide on creating a Star Jar.  The Star Jar is a LED decoration that is triggered with a Mighty Ohm Geiger Counter kit.

This instructable builds on top of the Geiger counter triggered LED decorations I made last year. This version powers the Geiger counter from the Arduino (itself now powered from a mains adaptor, so I no longer need to keep feeding them batteries) and the LEDs now fade in and out for a more gentle effect.

via Mighty Ohm

Detect particles and/or make a cool random number generator with this handsome Geiger counter kit. This easy-to-make pack of parts turns a simple Geiger-Muller tube (included) into a portable blink, beeping radiation detector. You can also connect an FTDI friend to the header, to get serial output for datalogging on your computer.

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