Welcome

Connect the device to any USB power supply.

Within a minute, the device will start a Wi-Fi hotspot named "Akamatis Presence Sensor Hotspot" (no password required). Connect to it.

After connecting, open a browser and go to 192.168.4.1.

Enter your Wi-Fi credentials (SSID and password).

Your computer/smartphone should automatically reconnect to your regular Wi-Fi network in less than a minute.

In Home Assistant, go to Settings → Devices & Services. You should see a newly discovered device with the name starting with “Akamatis Presence Sensor …”. Click Add, then set your preferred device name and location.
You may ignore sensors that are auto-discovered via Bluetooth (BLE).

That’s it! The device should now appear under Settings → ESPHome.