I've planning on wiring the CoAx power connector , through to a power controller chip, and then on to my Raspberry Pi with Amp2 HAT.
I have two questions:
1. Is there a spec sheet for the CoAx power connector? I assume the long leg is +, but I didn't get anything with it.
2. For the power controller, I'd like to wire up a STSP switch to turn on the main Pi and Amp2 board. The Switch at the moment is connected to an Arduino Uno that is handling all the analog & digital inputs. Can I use the I2C on the Uno to turn on or off the power controller to the Pi, rather than the Pi itself?