How to make a diy led finger fidget spinner
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The Keyes SR1y relay module is an active high relay module with an SPDT relay.
Maximum 10A 250V AC
Maximum 10A 30V DC
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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.