ELP webcam module & Doorbell - RaspberryPi Home Security Project
Do you want to know who ring your doorbell when you are away from your home? If your answer is yes then this video is for you. You will attach a camera to RaspberryPi and whenever a person presses the doorbell, RaspberryPi takes a photo and put it into a folder that is in sync with Google Drive. This way you will get the picture on your smartphone.