Relays
From PHCC
Relays
A relay is a electromechanical device that can be used to switch eg. a high voltage/current with a low voltage/current.
It consists of a coil and the switching part. When current flows through the coil, the magnetic field produced can move the switching contact, eg from off to on, or vice versa.
They come in many colors, sizes, types and ratings.
Useful to turn on/off a load, even 115VAC/230VAC.
Can usually be driven by one or more of the Digital Output Daugterboards.