OpenSprinkler › Forums › Comments, Suggestions, Requests › Few questions about gpio and soil sensor › Reply To: Few questions about gpio and soil sensor
March 18, 2023 at 2:43 pm #75046
The pins defines are all in the firmware code defines.h:
assuming you have OpenSprinkler version 3.2 (previous versions use different pins, and they are all defined in the file as well). IO_EXP + ? means it’s pin number ? on the PCA9555 IO expander.