Gravity: Geiger Counter Module Ionizing Radiation Detector Wiki - DFRobot
DIY Geiger Counter With an ESP8266 and a Touchscreen - Electronics-Lab.com
Arduino_Geiger_Counter
Automating a Geiger Counter with an ESP8266 or ESP32 #Feather #Arduino #ESP32 « Adafruit Industries – Makers, hackers, artists, designers and engineers!