August-9th-2018, 12:05 PM
I think there is a confusion between the physical pins of the Raspbery CPU BCM283x and the same pins we placed on the NIOT-E-NPIX-EVA (there is a 1:1 relation) and how the pins are treated by the used software "rpi-gio library". It is numbering the pins differently.
First watch the GPIO pins of the CPU here: https://www.raspberrypi.org/app/uploads/...herals.pdf on page 102.
Then watch the pinout of the HAT connector from pin 1 to pin 40: https://pinout.xyz/#
The node.js software we use treats the pins in accordance with the HAT pinout not in accordanc with the CPU manual. So supposing your want to address the physical pin GPIO23 of the Raspberry CPU the software uses the HAT adressing scheme which is pin no. 16 on the HAT.
I think this makes the thing now clear to you.
First watch the GPIO pins of the CPU here: https://www.raspberrypi.org/app/uploads/...herals.pdf on page 102.
Then watch the pinout of the HAT connector from pin 1 to pin 40: https://pinout.xyz/#
The node.js software we use treats the pins in accordance with the HAT pinout not in accordanc with the CPU manual. So supposing your want to address the physical pin GPIO23 of the Raspberry CPU the software uses the HAT adressing scheme which is pin no. 16 on the HAT.
I think this makes the thing now clear to you.
„You never fail until you stop trying.“, Albert Einstein (1879 - 1955)
