Specification:

Features:

Dual Independent Relays

• Control two separate loads independently using digital I/O pins.

• Each relay supports both normally open (NO) and normally closed (NC) terminals.

5V Logic-Level Compatible

• Operates at 5V input voltage – directly compatible with ESP32, NodeMCU, STM32, Pi, and other 5V logic microcontrollers.

High Voltage/Current Load Support

• Can switch up to 250V AC at 10A or 30V DC at 10A per channel.

Optocoupler Isolation

• Opto-isolated inputs protect your microcontroller from voltage spikes and surges.

LED Indicators

• Onboard LEDs show the relay status in real-time – useful for debugging and monitoring.

Screw Terminals

• Secure and easy connection for high-voltage AC or DC loads.

Compact and Durable Design

• Standard 2-channel relay layout; small PCB footprint suitable for tight spaces.

• High-quality PCB with thick copper traces for long-term reliability.

Description:

The 2-Channel 5V Relay Module is a compact, powerful switching board that allows your microcontroller (such as an Pi, ESP8266, or STM32) to control two high-voltage devices (up to 250V AC or 30V DC) using low-voltage digital signals. Each of the two onboard relays acts as an electromechanical switch, enabling you to safely interface with devices like lights, fans, appliances, solenoids, motors, and more.

With built-in opto-isolators, this module provides enhanced safety and electrical isolation between your control logic and the devices being switched. It features active-low trigger inputs, meaning the relay is activated when the input pin receives a LOW signal from your microcontroller.

Whether you're automating your home, building a robotics system, or designing an IoT project, this 2-channel relay board offers reliable and safe switching at an affordable cost.