When the PIR sensor no longer detects someone in range, it sends a notification over serial to a python script running on the PC to switch off the camera and microphone on Zoom (or another app).

Setup Instructions Connect the PIR sensor to the ESP8266. Flash the code to ESP8266. Run the Flask server on your computer. Make sure both ESP8266 and server are connected to the same network.

A lot of people have used ESP8266 to add inexpensive WiFi connectivity to their projects, but [Oscar] decided to take it one step further and program an Arduino over WiFi with the ESP8266.