Relay Module (5V Single-Channel)

Relay Module (5V Single-Channel)

Relay Module
Switch
TRIOE
IoT
Embedded Systems
Automation

A relay is an electrically operated switch that allows a low-power control signal to switch a high-power device, such as a light bulb, fan, or motor. Relay modules are widely used in automation, IoT projects, and home control systems.

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Pin Configuration

VCCPower supply (5V)
GNDGround (-)
INControl signal from microcontroller
COMCommon pin for the relay switch
NONormally open (connected to COM when relay is activated)
NCNormally closed (connected to COM when relay is deactivated)

Specifications

Operating Voltage5V
Trigger Current~15-20mA
Relay TypeSingle-Channel SPDT (Single Pole Double Throw)
Max Load AC250V @ 10A
Max Load DC30V @ 10A
Optocoupler IsolationYes (for safer operation)
Dimensions50mm x 26mm x 18mm

Sample Code

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