I don't think you can use all of the pins (0 - 53) on the SoC chip of the zero - only some are brought out onto the GPIO header.
The GPIO has GPIO0 to GPIO27 (0 and 1 are reserved), so a total of 26 are available as standard.
Also have a look at the SoC BCM2835 peripherals datasheet https://datasheets.raspberrypi.com/bcm2 ... herals.pdf
The excellent pigpio library can do interrupts on any pin 0-31 https://github.com/joan2937/pigpio
And see pinouts https://pinout.xyz/#
The GPIO has GPIO0 to GPIO27 (0 and 1 are reserved), so a total of 26 are available as standard.
Also have a look at the SoC BCM2835 peripherals datasheet https://datasheets.raspberrypi.com/bcm2 ... herals.pdf
The excellent pigpio library can do interrupts on any pin 0-31 https://github.com/joan2937/pigpio
And see pinouts https://pinout.xyz/#
Statistics: Posted by neilgl — Fri Mar 07, 2025 1:19 pm