The shared modules below are not currently included in the nRF port build (taken from Makefile). Obviously, some will be easier than others so I put them in as a task list.

• • audiobusio/PDMIn.c now listed in nrf: implement audiobusio.PDMIn #1037
• bitbangio/__init__.c
• bitbangio/I2C.c
• bitbangio/OneWire.c
• bitbangio/SPI.c
• busio/OneWire.c
• gamepad/__init__.c
• gamepad/GamePad.c
• struct/__init__.c
• • uheap/__init__.c now in nrf: implement uheap and ustack #1194
• • ustack/__init__.c now in nrf: implement uheap and ustack #1194