I would like to configure HA so that the ‘Mighty Mule FM231 Wireless Driveway Alarm’ is recognized as a device via RTL_433 to MQTT. The FM231 is a coil sensor, located by the driveway, that generates AM modulated RF signals at 433.92Mhz to a corresponding receiver, located in the home, that generates a sound.
The FM231 is installed and the receiver sounds an alarm when a car disturbs the magnetic field around the coil sensor.
Mosquitto Broker integration is installed and communicating to a LILYGO® LoRa32 V2.1_1.6.1 433 Mhz board flashed with OpenMQTT Gateway v7.0 with Auto Discovery enabled.
Multiple AcuRite RTL_433 Indoor Outdoor Temperature and Humidity Sensors (592TXR) were discovered and configured as devices in HA
The FM231 is not discovered by HA and I’m unable to identify its topic in MQTT Explorer.
Is the FM231 not a known device to OpenMQTT? I’m using the default switch settings on both sensor and the receiver … would modifying that help? Is there an additional step that I’m missing?
I am VERY interested in this, and you sound way more advanced on this topic. I did a lot of work trying to get a signal into HA, but concentrated on trying to use a dry contact switch to key off te LED in the mighty mule receiver. I ended up using a ZOOZ switch that was very cumbersome. I did find where some guy had used homebridge to tie into HA and pick up the 433 mhz signal, but I am not familiar at all with home bridge.
I love the mighty mule magnetic driveway sensor, as I have tons of deer around, but none are magnetic, turns out.
merkurmaniac thanks for the reply … apologies for the delayed response, I’ve been off playing with TrueNAS … so, I’m still trying to sort this out.
I’m ‘guessing’ the real issue is that the FM231 is NOT a known device to the OpenMQTT Gateway (it doesn’t include MightyMule=FM231.conf) so it’s unable to decode the FM231 RF signals.
Next steps …
Move the OpenMQTT Gateway closer to the FM231 to confirm that it’s not a range issue.
Use a Shelley Plus 1 as a binary sensor (detached mode enabled) connected to the buzzer/led on the FM231 receiver. Power the relay from the receivers’ 12V DC power.
Compile the OpenMQTT Gateway to include the FM231 decoder. While this would be the most eloquent solution, it’s a skill that I don’t currently possess.