Designating a pin header and a GPIO

Question

I have an Acconeer XB112 breakout board and an XM112 radar module. It all works just fine per the Acconeer documentation and tutorials.

Now I want to modify some of the code to output to a GPIO. My problem is that there are six different header options: two micro USB (J1 & J2), two 2x5 headers (J5 & J6), a 2x30 board-to-board connector (J4; where the XB and the XM mate), and a 2x20 header (J3) that is only solder pads.

I need to use pin 5 on header J6. How does one determine the name of the specific header and how would that be written in python?

Answer 1

You need to consult the documentation of the boards you are using.

The software can access GPIO pins of the microprocessor, but that processor can be mounted on a gazillion different board layouts and there is no way to tell the software what the board layout looks like.

As a result, you need to look in the documentation of your board which GPIO pin of the processor is connected to pin 5 of header J6 (if it is a GPIO pin at all. Not all processor pins are usable as GPIO pins, even if they are connected to a header).