ESPHome room presence detection with Bermuda BLE Trilateration — Home Automation Guy

Bermuda BLE is a Home Assistant integration that enables room-level presence detection using existing ESPHome devices as Bluetooth proxies. By placing ESP32 devices in each room and configuring them as Bluetooth trackers, you can detect which room a person or object is in based on BLE beacon signals from smartphones or dedicated tags. The setup involves installing the Bermuda HACS integration, flashing ESP32 devices with ESPHome firmware that includes bluetooth_proxy functionality, and configuring BLE transmitters (like the Home Assistant Android app or physical beacon tags). The system uses signal strength trilateration to determine location, enabling personalized automations based on who is in which room.