I'm just reading what the OP says:
However that assumes that the hardware is fixed. One is much more likely to choose a pin and then look for the software configuration to match, but if this choice of 21 is arbitrary (or sentimental) then yes, BCM21 can be found on pin 40.
And the fact that the arrow is roughly pointing to BCM5/wPi21/Physical 29. If the config using (BCM)GPIO 21 is not working then that must be wrong.I like to use GPIO.21 (BCM 5)
However that assumes that the hardware is fixed. One is much more likely to choose a pin and then look for the software configuration to match, but if this choice of 21 is arbitrary (or sentimental) then yes, BCM21 can be found on pin 40.
Statistics: Posted by PhilE — Wed Mar 26, 2025 7:39 pm