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Installation guide
The code must be compiled into a firmware using ESPHome. Therefore, a prerequisite is that you have ESPHome up and running in some form (command line, docker container, web dashboard, possibly from within Home Assistant as an add-on). For information on this, please refer to the documentation on the ESPHome website.
The component code is distributed directly from GitHub. You will not have to download and install the code manually. This leverages the external components feature that was introduced in ESPHome v1.18.0. Therefore, you must use ESPHome v1.18.0 or later.
Before you can compile the firmware, you will have to create the YAML configuration file for your device. You can take the example.yaml from this repository as a starting point, and modify that one to your needs. Detailed information about the YAML configuration options can be found in the Configuration guide.
After these steps you can let ESPHome compile your firmware (firmware.bin) file. This firmware
can then be flashed onto the device.
Like normal with ESPHome, the first time you will have to flash the device using a serial interface. After this initial flashing operation, you can flash new versions of the firmware using the OTA (Over The Air) method.
See the flashing guide for hints on opening up the device and flashing its firmware using the serial interface.