• AirGradient ONE V9 (ONE-V9)

1. Add a custom repository to HACS:

• URL: https://github.com/just-oblivious/airgradient_ha
• Type: "Integration"

2. Install "AirGradient";
3. Restart Home Assistant'
4. Continue with device preparation and configuration.

By default AirGradient devices post data to a hardcoded HTTP endpoint (hw.airgradient.com), this URL needs to be modified to make the sensor talk to Home Assistant.

Follow these instructions to prep your sensors:

1. Setup a development environment as per AirGradients instructions;
2. Open the Arduino code for your AirGradient device;
3. Patch the APIROOT variable and point it to your Home Assistant machine (e.g. http://192.168.1.10:8088/);
4. Flash the firmware to your device.

After adding the component to Home Assistant add the "AirGradient" integration and setup a new listener.

Devices are automatically added as soon as they start sending data to the configured port on your Home Assistant host. The default port is 8088.

Do not forget to forward the selected port to your Home Assistant container when running in Docker.