KiCad boards from 7 GitHub repositories tagged “geiger-counter”, the most starred first; open any of them in PCBKit.
RobertGawron/SemiconductorRadioactivityDetector
Nuclear radiation sensor with photodiode as a detector. Photodiode doesn't require high voltages as GM tubes do. Smaller size makes better resolution. Side effect is electronic must be more sensitive.
AronASzucs/Avalanche32
Handheld ESP32-S3 Geiger counter with a firmware-regulated 400 V boost, SBM-20 tube, USB-C charging and OLED display.
ahnaf-tahmid-chowdhury/SmartGeiger
Development of background radiation monitoring with IoT based device
alplix/yarrow
Open firmware for the FNIRSI GC-03 radiation detector
b-wave/geiger_counter_lcd_display
This is a quick an dirty LCD display for Gieger counters to allow long term readings for low radiation levels.
samop/poletni_tabor_inovativnih_tehnologij_2017
Poletni tabor inovativnih tehnologij -- programska oprema Geiger-Mullerjevega stevca
