1-Channel 5V IR Relay Module

The 1-Channel 5V IR Relay Module is an electronic switching module that combines an infrared (IR) receiver with a relay circuit, allowing electrical devices to be controlled remotely using a compatible IR remote control. Operating on a 5V DC power supply, this module enables users to switch high-voltage or high-current electrical loads ON and OFF without direct physical contact, making it an excellent choice for home automation, remote switching, and embedded electronics projects.

The module consists of a single-channel relay, an infrared receiver, a relay driver circuit, and status LEDs. The infrared receiver detects signals transmitted from a compatible IR remote. When a valid command is received, the onboard control circuit activates or deactivates the relay, which acts as an electrically operated switch. This allows low-voltage electronic circuits to safely control high-voltage AC or DC devices while maintaining electrical isolation between the control and load circuits.

The relay provides Normally Open (NO), Normally Closed (NC), and Common (COM) terminals, allowing flexible wiring for different switching applications. Because the relay isolates the control side from the load side, it helps protect sensitive electronic components from high voltages and electrical noise.

The 1-Channel 5V IR Relay Module is widely used in home automation systems, smart lighting, appliance control, security systems, industrial automation, remote-controlled devices, and educational electronics projects. Its simple interface and reliable performance make it suitable for beginners as well as professional developers.

Working Principle

The module operates using infrared remote control technology:

• A compatible IR remote transmits an infrared signal.

• The onboard IR receiver detects and decodes the signal.

• The control circuit processes the received command.

• The relay driver energizes or de-energizes the relay coil.

• The relay switches the connected electrical load ON or OFF.

• LED indicators display the power status and relay operating status.

Key Features

• Single-channel relay module

• Operating voltage: 5V DC

• Built-in infrared (IR) receiver

• Remote ON/OFF switching capability

• Supports high-voltage and high-current loads

• Relay output with COM, NO, and NC terminals

• LED indicators for power and relay status

• Reliable relay driver circuitry

• Electrical isolation between control and load circuits

• Easy integration with electronic control systems

• Compact and durable PCB design

Applications

The 1-Channel 5V IR Relay Module is commonly used in:

• Home automation systems

• Remote-controlled lighting

• Appliance switching

• Smart home projects

• Security and alarm systems

• Industrial control systems

• DIY electronics projects

• Arduino and microcontroller applications

• Embedded systems

• Robotics and automation

• Educational electronics experiments

• Wireless switching systems

Specifications

• Product Type: IR Relay Module

• Relay Channels: 1

• Operating Voltage: 5V DC

• Control Method: Infrared (IR) Remote

• Relay Contacts: COM, NO, NC

• Status Indicators: Power LED and Relay LED

• Mounting Type: PCB Mount