Here is a Tutorial for ESP32 cam Module .It is a very cheap camera module .We are using here arduino uno for programming on ESP32 cam module . You can use this as a surveillance camera . You can get all live pictures and videos on your laptop or Smart phones screens.If you face any doubt please ask us in comment .All library and code you can find from given links.
Arduino Ide https://www.youtube.com/redirect?even...'>https://www.youtube.com/redirect?even...
Download ESP32 Cam board manager
https://www.youtube.com/redirect?even...'>https://www.youtube.com/redirect?even...