This firmware turns a Shelly 1 into a garage door opener for Home Assistant via the MQTT Cover integration. platformio.sample.ini shows how to configure the project. All options and their defaults can be found in config.h. No configuration on the Home Assistant side is necessary besides setting up the MQTT integration; all device-specific settings are shared via MQTT discovery.
Add upload_protocol = espota to platformio.ini after flashing the firmware once to enable over-the-air updates. To update OTA a device running the release environment with an IP address of 192.168.1.3, you would run
pio run -e release -t upload --upload-port 192.168.1.3You can also add upload_port = 192.168.1.3 to platformio.ini instead of using the --upload-port flag.
- Connect a compatible DC power supply (12V or 30-50V) to the L(-) and N(+) terminals.
- Connect a normally-open reed switch to SW and L(-). Make sure the switch is rated for the power supply voltage (most are).
- Splice wires from O and I to the existing wall opener wires.
Example wiring. The Shelly and two wall openers are tied together with wire nuts and connected to the motor.
Reed switch setup. Be careful to check that when the chain moves the magnet and its zip ties won't hit anything.
You can reboot the devices via MQTT by sending a message (default: restart) manually to the device's command topic (default: <base topic>/cmd). Home Assistant provides a way to publish arbitrary messages in Settings > Devices & Services > (MQTT Integration) Configure.