https://facelesstech.wordpress.com/2023/08/19/diy-geiger-counter/I designed a case for the Geiger counter that's available on aliexpress. It adds a arduino and a boost/charge board. I found a firmware for the arduino that takes the output of the Geiger counter and turns it into useful info. More info can be found below.

Blog post - https://facelesstech.wordpress.com/2023/08/19/diy-geiger-counter/