asyncpio is an asynchronous Python client for pigpio, which allows control of the Raspberry Pi's General Purpose Input Outputs (GPIO).

This is a port of pigpio's thread-based Python client to asyncio.

pigpio is a dependency: you must have the pigpio daemon, pigpiod.

See http://abyz.me.uk/rpi/pigpio/

ALL GPIO are identified by their Broadcom number. See https://pinout.xyz.

There are 54 GPIO in total, arranged in two banks.

Bank 1 contains GPIO 0-31. Bank 2 contains GPIO 32-54.

A user should only manipulate GPIO in bank 1.

There are at least three types of board:

• Type 1
  • 26 pin header (P1)
  • Hardware revision numbers of 2 and 3
  • User GPIO 0-1, 4, 7-11, 14-15, 17-18, 21-25
• Type 2
  • 26 pin header (P1) and an additional 8 pin header (P5)
  • Hardware revision numbers of 4, 5, 6, and 15
  • User GPIO 2-4, 7-11, 14-15, 17-18, 22-25, 27-31
• Type 3
  • 40 pin expansion header (J8)
  • Hardware revision numbers of 16 or greater
  • User GPIO 2-27 (0 and 1 are reserved)

It is safe to read all the GPIO. If you try to write a system GPIO or change its mode you can crash the Pi or corrupt the data on the SD card.