@cognitive5525 said in what's the Pin for M5dial BtnA:
"Wake" on the front of the M5dial (the "main button" of the M5Dial I suppose) connected to the power-on circuit but routed via the "wake" signal to ESP-G42. (designated "S1" on the M5dial diagram.)
thanks. I think that's it , but I just curious , how you can tell the "S4" is routed to the G42? sorry I know nothing about the hardware. lol