Hi, using a Pi5, sitting on a Geekworm/Suptronics X1202 UPS sled (docs). It is a sled, not a HAT – the Pi sits on top, with pogo pins hitting GPIO’s 2-3 (I2C) along with 6 and 16. 6 is the conflict. That pin is HIGH when the UPS has external power, and LOW when it doesn’t. I’m guessing this could be problematic. I do see SJ4 which I could cut, thus disconnecting the HAT from GPIO6. Docs say this is RI, aka Ring Indicator, and SMS. Also I’m not using the Sixfab software - my SIM provider does allow SMS (through their API), although its pay per message. I haven’t investigated how to send or retrieve SMS (with or without Sixfab software) - My only use-case would be an SMS triggered reset/reboot or re-connect.
First question: What’s the loss here? Is any generic software or Sixfab software looking specifically at that signal?
Second question: If so, could I potentially rework the the bottom of the HAT – cut the jumper, and connect the signal to, lets say, the adjacent GPIO-5 using a little piece of rework/wrap wire?