OpenSprinkler Forums Comments, Suggestions, Requests Few questions about gpio and soil sensor Reply To: Few questions about gpio and soil sensor

#75046

Ray
Keymaster

The pins defines are all in the firmware code defines.h:
https://github.com/OpenSprinkler/OpenSprinkler-Firmware/blob/master/defines.h#L388
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.

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