Mega32Grbl An ESP32 Grbl board w/ Arduino Mega/R3 formfactor! (Not validated yet!) Two ESP32 modules supported! ( ESP32-DevKitC 38pin-1.1" / Lolin-D32 32pin-1") ESP32 GRBL CPU/IO mapping Mega32 CPU/IO mapping References GRBL ESP32 GRBL The WiFi ESP3D-WebUI