5V 8 Channel Relay Module

The 5V 8 Channel Relay Module is designed to control multiple electrical devices using a single microcontroller. Each relay channel acts as an electromechanical switch that can control high-voltage or high-current loads while being safely triggered by a low-voltage digital signal.

The module includes driver circuits, optocoupler isolation, and LED indicators for each relay channel to ensure stable and safe operation. When a control signal is applied to the input pin, the corresponding relay activates and changes the connection between the COM, NO, and NC terminals, turning the connected device ON or OFF.

Because of its multiple channels, this relay module is widely used in home automation systems, industrial control systems, smart energy management, and IoT-based automation projects.

Key Features

• Eight independent relay channels

• 5V operating voltage compatible with most microcontrollers

• Each relay supports high-voltage switching

• Optocoupler isolation for safe operation

• LED status indicators for each relay channel

• Easy interface with Arduino, ESP32, and other controllers

Technical Specifications

Pin Configuration

Control Pins

Relay Output Pins (Per Channel)