The Tweeting Intercom: (Door Strike) Relay Monitoring with Raspberry Pi @Raspberry_Pi #piday #raspberrypi
This tutorial from PCDaily shows you how to use a raspberry pi to build a tweeting intercom:
So, why would you possibly need a tweeting intercom? – Well, first of all you are not limited to sending tweets only. Theoretically, you could kick off any Raspberry Pi project so you are only limited by your creativity 😉 We chose to go for tweeting since the DoorLine Pro intercom comes with an integrated motion sensor which can be configured to trigger the two available relays. Imagine you are away from home and someone tries to break into your house: The intercom motion sensor would trigger the relay, the Raspberry Pi would detect the state change and take a picture tweeting it alongside an alert message and time-stamp.