nRF52840 – CircuitPython 5.0.0 pinout

I recently got CircuitPython running on my SparkFun nRF52840 Pro Mini.

Compared to what SparkFun says the pin mappings should be, I found them to be quite different. Perhaps they changed with CircuitPython 5.0.0?

Here’s what the pin mapping looks like, when superimposed over SparkFun’s pinout diagram:

Sources:

• https://learn.sparkfun.com/tutorials/nrf52840-development-with-arduino-and-circuitpython
• https://github.com/adafruit/circuitpython/blob/0f003ac5b8312fafb120e86e05eefd2431014d8c/ports/nrf/boards/sparkfun_nrf52840_mini/pins.c