P-019: 5V Relays module Arduino KY-019 Relay Module is used to control AC circuits, the relay acts as a switch that responds to a signal received from the Arduino, it has an integrated LED that indicates if the signal is high or low. Commonly used in IoT projects to control lights and other electronic app more...
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When connecting a CyberData Intercom to an electronic door lock, the high current side of the door strike required a separately-wired relay and protection diode. The CyberData Door Strike Intermediate Relay Module eliminates the need for the customer to source a separate relay and makes wiring an electronic d more...
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