There was a time when an intercom was simply a pair of boxes with speakers joined by a couple of wires, with an audio ... Power for the system is present as a constant 24V DC, and the audio ...

The Arduino Wire library is a core aspect of Arduino's integrated development environment, or IDE, and is a must-have if you're using sensors or extra microcontrollers in your project. Like ...

They turned to an Arduino along with some beefy motor ... Since the dome rotates, it was not possible to wire the box to power. The system uses some batteries that right now have to be manually ...