Relay Module Channel 5v With Optocoupler Projects Arduino Compatible

5V Relay Module – High Voltage & Current Control

A relay is a digital switch that lets your Arduino or other microcontrollers control devices with higher voltages and currents than they can handle directly. When the input receives a logic signal, the relay switches to either allow current to flow or cut it off, depending on your wiring.

Each relay has a coil, common (COM) terminal, normally closed (NC) terminal, and normally open (NO) terminal. When energized, COM connects to NO, enabling power flow to your device.

Why Use a Relay?
Use a relay whenever you need to switch a high-current or high-voltage load, such as headlights, parking lights, horns, or other appliances. Also available in 4-channel and 8-channel versions for multiple outputs.
Note: Connect VCC to JD-VCC with the jumper when using.

Specifications:

• Control Voltage: 5V DC
• Max Switching Capacity: 10A @ 250VAC / 10A @ 30VDC