This was a fun experiment measuring the rotational speed (rpm) of a fidget spinner using an Arduino Uno, a hall effect sensor and a neodymium magnet. Then seeing just how fast I could make the spinner spin with a shop vac!
The Keyes SR1y relay module is an active high relay module with an SPDT relay.
Maximum 10A 250V AC
Maximum 10A 30V DC
Relays are electrically operated switches, which allow a low-level electrical signal to control a separate larger electrical voltage or current.
Several types of relays are available to suit different applications, including reed relays, automotive power relays, latching relays, contactors & coaxial relays.
A relay is an electromechanical device that consists of a number of parts, including the Coil, core, armature, yoke, contacts, spring and the push-rod.