StromPi3 + RPI4 + Serial-Less Mode


I am struggling with the Serial less mode. I managed to activate it properly but have following issues:

  • Serial less mode is after each reboot deactivated. This means I can establish a connection via UART with the StromPI3. Is this on purpose or a bug? I need always to start script But this I want to avoid!
  • I connected Reset-Pin to two different GPIO pins (21 and 20). But both pins always have value HIGH; regardless if primary or secondary power source is used. I tried the provided script and also reading the pin values with different tools.

I am using latest Raspbian Version and Firmware 1.72 for StromPI3. In serial mode power failure detection works fine.

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Hi Michael,
I wish you good luck. We are pleased, if we can help our customers to realize their projects. If you need further help, don’t hesitate to contact us.
Best regards
Nils (Joy-IT)

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