RPi 5 GPIO Support yet

thewizardfromoz · July 22, 2024, 8:18am

Do we have any solutions for Pi5 GPIO support yet? Anyone had any success at all? I’ve searched long and hard and have turned up nothing and unfortunately lack the skill to work it out from scratch but can implement a solution if someone has got it working.

FloatingBoater · July 22, 2024, 9:40am

Hi,

If there is any support, it won’t be via stock HAOS/ HASS due to ADR-0019:

github.com

home-assistant/architecture/blob/8631a749058299f2b309226e1afd508ae5c12cc2/adr/0019-GPIO.md

# 0019. GPIO

Date: 2021-12-20

## Status

Accepted

## Context

We currently have a lot of integrations that use or are based on GPIO (including SPI and I2C busses).

- All of these integrations have a low usage count (source Home Assistant Analytics),
  but add the same amount of maintenance and review time to the core.
- Most of these integrations are unmaintained.
- The use of GPIO via containers (including our Home Assistant OS, Container
  & Supervised installation methods) is often unstable or complicated.
- Support for GPIO on specific platforms/SBCs: mileage varies (e.g., Raspberry Pi on 64 bits platforms).
- The use of these sensors, in general, is better supported and done via dedicated projects like ESPHome.

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The original RPi GPIO add-on moved to HACS, but my fix was to move from direct GPIO to ESPhome or Tasmota. On balance, maintaining a £4 Wemos D1 Mini Clone with ESPhome works fine and insulates (security and literally electrically) the RPi from hardware problems.

IMHO, a cheap RPi3b might be have been worth a hardware punt for a few DS18B20 or similar, but a £60+ RPi5 isn’t.