The 2 Channel 5V Relay Module is a dual-channel relay board designed to control high-voltage AC or DC loads using low-voltage microcontrollers such as Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and PIC. Each channel features a 5V relay, optocoupler isolation (on most versions), status LEDs, and transistor drivers, providing safe and reliable switching for home automation, robotics, industrial control, and DIY electronics projects.

Features

• Two independent relay channels
• 5V relay coil operation
• Supports high-voltage AC and DC load switching
• Optocoupler isolation (Model Dependent)
• Onboard status LEDs for each relay
• Transistor driver circuit
• Compatible with 3.3V and 5V logic microcontrollers
• Screw terminal outputs for easy wiring

Specifications

Pin Configuration

Control Header

Relay Output (Each Channel)

Note: When the relay is OFF, COM is connected to NC. When the relay is ON, COM switches to NO.

Applications

• Home automation
• Arduino and ESP32 projects
• Raspberry Pi projects
• Smart switches
• Industrial control systems
• Motor control
• Lighting control
• Pump control
• Security systems
• DIY electronics projects

Advantages

• Controls two independent loads
• High load switching capability
• Easy microcontroller interface
• LED status indication
• Screw terminal connections
• Reliable relay operation
• Cost-effective solution

Size

Package Includes

• 1 × 2 Channel 5V Relay Module

Note: This module is designed to switch high-voltage AC and DC loads. Exercise caution when working with mains voltage. Ensure all wiring is completed with the power disconnected. Verify whether your module uses low-level or high-level triggering before programming, as this may vary between manufacturers. Never exceed the relay contact rating of 10A @ 250V AC or 10A @ 30V DC.