8 Channel 5V Relay Module for Arduino & IoT

8 Channel 5V Relay Module

Take control of multiple high-power devices with a single board using this 8 Channel 5V Relay Module. This module is the perfect solution for ambitious projects requiring the control of numerous AC or DC appliances, such as large-scale home automation, custom industrial controllers, robotics, or multi-zone control systems.

Each of the eight channels is equipped with a high-quality relay and an optocoupler. This design electrically isolates your sensitive microcontroller (like an Arduino, ESP32, or Raspberry Pi) from the high-voltage side, preventing potential damage from power surges. Individual status LEDs light up when their corresponding relay is activated, giving you immediate visual feedback on your system’s state.

Designed for convenience, the board features clearly labeled screw terminals for easy and secure connection of your high-power devices, and standard header pins for straightforward connection to your microcontroller’s VCC, GND, and digital I/O pins.

Safety Note: Exercise extreme caution when working with high voltages (like mains AC). Ensure all power is disconnected before making connections. If you are unsure, consult a qualified professional.

Key Features:

• Channel Count: 8 independent relay channels
• Control Voltage: 5V DC, fully compatible with common microcontrollers
• High Load Capacity: Relays are rated for up to 10A at 250V AC or 10A at 30V DC
• Opto-Isolated Inputs: Provides robust protection for your control circuitry
• Onboard Indicators: An individual LED for each channel indicates its on/off status
• Easy Wiring: Screw-down terminals for load connections and header pins for control signals

Applications:

This 8-channel relay is ideal for extensive home automation projects (controlling lights and appliances in multiple rooms), creating smart switchboards, managing multiple solenoids in automated gardening or irrigation systems, robotics projects with numerous actuators, and any application where you need to switch more than a handful of high-power loads from a single controller.