diff --git a/source/_components/mqtt_room.markdown b/source/_components/mqtt_room.markdown
index 966b48b0ff3..eb9bcd1205d 100644
--- a/source/_components/mqtt_room.markdown
+++ b/source/_components/mqtt_room.markdown
@@ -74,3 +74,4 @@ Instead of developing your own application, you can also use any of these alread
 
 - [**room-assistant**](https://github.com/mKeRix/room-assistant): looks for Bluetooth LE beacons, based on Node.js
 - [**Happy Bubbles Presence Server**](https://github.com/happy-bubbles/presence): presence detection server for Happy Bubbles BLE-scanning devices, based on Go
+- [**ESP32-MQTT-room**](https://jptrsn.github.io/ESP32-mqtt-room/): runs on an ESP32, and looks for Bluetooth LE devices, based on C++/Arduino