Arduino is an opensource hardware and sofware company that developed a user-friendly opensource microcontroller board on were it’s possible to develop almost anything, from 3D printers to watering systems or drones.
The platform provides several documentation on how to use, create or build with one of this boards. On the following video Massimo Banzi, one of Arduino board co-inventors, show several projects build on this platform.
Arduino offers multiple ports on where to conect almost any electronic thing, from sensors, to motors. With its control capabilities from a small CPU it’s able to coordinate and operate almost any machine or mechanism that you could thought of.