IoT doorbell
Doorbell rings, it's upset go to the windows to see who is outside and then go to open the door. I propose streaming between ESP32 and Android device.
For controlling a lock (generally a 110 V-AC electric lock) we can use a thyristor to support the hight volatge and one input/output pin of the ESP32. In the other side we have an Android app using TCP sockets to communicate with ESP32.
A new feature of ESP32 is a streaming, audio and video, so we propose use that feature through Android app and the ESP32.

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