A MightyOhm Geiger Counter samples radioactive decay from a martini glass that contains a small amount of uranium. If the number of clicks in a set period is even, the robot dispenses vermouth into the glass. If the count is odd, it dispenses gin, therefore creating a wet or dry martini based on the random process of radioactive decay.
Icarus has written a tutorial on connecting the MightyOhm Geiger Counter to an ESP8266 module and OLED display. His code (written in LUA for NodeMcu) is available on github. He is using the Wemos D1 mini board.
The 36th annual Mike and Key Amateur Radio Club Electronics Show and Fleamarket will be held next Saturday, March 11th at the Washington State Fairgrounds in Puyallup, WA.
This is one of the best amateur radio events in Washington state and one that I look forward to every year. A couple years ago I came home with a working Hameg HM-507 analog+digital oscilloscope (pictured above) for a hundred bucks!
I have a table at the swap meet this year, and I’ll be selling Geiger counter kits, misc. electronics, and amateur radio gear. Look for the MightyOhm banner.
I hope to meet some local folks there!
Micro Center is selling off their remaining stock of Geiger Counter kits at a substantial discount. Looks like there are still a few in stock at select locations.