Topic: Electronic door lock
I'm using remotexy along with a Bluetooth BLE adapter for a direct gatway to my IOBroker. The Arduino is connected to the IOBroker via MQTT and can open / close the door lock via LAN. So every family member can open the door with a cell phone (if the Remotexy password is known) without having to pass on my Wi-Fi password.
Remotexy, MQTT and LAN with an Arduino UNO works great!