I've never shared this video before on here and I don't really know why, so here it is:

This is something like a guide into how to build yourself a simple (portable!) scintillation counter using the Mini SiD, a Raspberry Pi Pico, OLED and charger. You could go much lower-power now, since the (older) Mini SiD in the video required beefier hardware. As I've shown in previous posts, you can easily utilize an Arduino UNO, especially for low count rates. That means that other extremely low-power AVR chips like an ATTiny aren't that far away anymore :)

Special thanks to the user RD-Gammaspectra, who made this video!

Let me know if you're interested in more builds!