5V 8-Channel Arduino Relay Module Board

The 5V 8-Channel Arduino Relay Module Board is a high-performance switching module designed to control up to eight high-voltage devices using low-voltage microcontrollers such as Arduino, ESP8266, ESP32, and Raspberry Pi. It is widely used in home automation, industrial control systems, and IoT-based projects where multiple electrical appliances need to be controlled independently.

This module provides safe electrical isolation and reliable switching, making it suitable for both DIY and professional automation systems.

Features

• 8 independent relay channels for multi-device control
• 5V operating voltage compatible with microcontroller systems
• Opto-isolated design for improved safety and noise protection
• LED indicators for each relay channel status
• Supports both AC and DC load switching
• Low-level or high-level trigger selectable (depending on module version)
• High reliability and fast response switching
• Easy integration with Arduino and other development boards

Specifications

• Model: 5V 8-Channel Relay Module
• Operating Voltage: 5V DC
• Trigger Voltage: 3.3V – 5V compatible
• Number of Channels: 8
• Relay Type: Electromechanical SPDT relays
• Maximum Load: 10A at 250V AC / 10A at 30V DC (typical rating)
• Isolation: Optocoupler isolation for each channel
• Control Interface: IN1–IN8, VCC, GND
• PCB Design: Industrial-grade with screw terminals
• Operating Temperature: -40°C to 85°C
• Compatibility: Arduino, ESP8266, ESP32, Raspberry Pi