Rfmqtt - RF 433MHz to MQTT bridge for Raspberry Pi

Third party integrations
1

I really wanted to get some 433MHz wall switch buttons to work and I wasn’t able to get existing solutions to work. I don’t think this will work for very many use cases, but I’m posting it as it might come useful for someone and it’s made to work with HA.

The first version supports listening to interrupts from a cheap 433MHz module on a GPIO Raspberry Pi 2 pin. It only supports the NewKaku protocol, however with some work it could probably be extended to others as it’s fairly flexible.

The way I approached it might be stupid and too much processing, but it seems fairly robust as it works on configurable statistical probability.

See the GitHub page for more information.

Releases: https://github.com/SmilyOrg/rfmqtt/releases
Source: https://github.com/SmilyOrg/rfmqtt

Here’s are some example HA automations that I’m using to interface with this tool. They use the momentary switch functionality to allow for long press and stateless switching.

binary_sensor:
  - platform: mqtt
    name: "Top Right"
    state_topic: "switch/topRight"

  - platform: mqtt
    name: "Bottom Right"
    state_topic: "switch/bottomRight"

  - platform: mqtt
    name: "Top Left"
    state_topic: "switch/topLeft"

  - platform: mqtt
    name: "Bottom Left"
    state_topic: "switch/bottomLeft"


automation:
  - alias: "Bedroom lights on"
    trigger:
      - platform: state
        entity_id: binary_sensor.top_left
        from: "off"
        to: "on"
    action:
      service: light.turn_on
      entity_id: group.bedroom

  - alias: "Bedroom lights off"
    trigger:
      - platform: state
        entity_id: binary_sensor.bottom_left
        from: "off"
        to: "on"
    action:
      service: light.turn_off
      entity_id: group.bedroom

  - alias: "Bedroom infinity light on"
    trigger:
      - platform: state
        entity_id: binary_sensor.top_right
        from: "off"
        to: "on"
    action:
      service: light.turn_on
      entity_id: light.infinity

  - alias: "Bedroom infinity light off"
    trigger:
      - platform: state
        entity_id: binary_sensor.bottom_right
        from: "off"
        to: "on"
    action:
      service: light.turn_off
      entity_id: light.infinity

  - alias: "Long top press bed time"
    trigger:
      - platform: state
        entity_id: binary_sensor.top_left, binary_sensor.top_right
        from: "off"
        to: "on"
        for:
          seconds: 2
    action:
      service: scene.turn_on
      entity_id: scene.bed_time

  - alias: "Long bottom press sleep time"
    trigger:
      - platform: state
        entity_id: binary_sensor.bottom_left, binary_sensor.bottom_right
        from: "off"
        to: "on"
        for:
          seconds: 2
    action:
      service: scene.turn_on
      entity_id: scene.sleep

And the devices part of the config.yaml on the rfmqtt side.

devices:
  - address: 0xC0FFEE
    topics:
      - unit: 1
        onoff: 1
        name: switch/topLeft
      - unit: 1
        onoff: 0
        name: switch/bottomLeft
      - unit: 2
        onoff: 1
        name: switch/topRight
      - unit: 2
        onoff: 0
        name: switch/bottomRight
1 Like
2

Hello, did you find some solution working on Raspberry? RF to MQTT (mosquitto).

3

Hi, I’ve been running the rfmqtt app for the last few months. It’s not 100% reliable, but it works most of the time if I keep the 433 button pressed for a second or so. I wouldn’t really recommend this setup and you might have to modify the code a bit for it to work for you, but it seems to get the job done for me for now. :slight_smile: