Shopping Cart

Detailed Description:

Expand the control capabilities of your electronic projects with the versatile 5V 8-Channel Relay Module – 8CH Relay Control Board. This essential component empowers your low-voltage microcontrollers to safely switch and manage up to eight independent high-voltage or high-current electrical devices. It's a cornerstone for building automated systems, smart home devices, robotics, and industrial control applications where isolation between control and load circuits is critical.

Each of the eight onboard relays is designed to handle significant power loads, typically rated for 10A at 250V AC or 10A at 30V DC. This makes it suitable for controlling a wide array of devices such as lights, fans, motors, pumps, solenoid valves, and other appliances that require more power than a microcontroller can directly supply. A crucial safety feature of these modules is the optocoupler isolation integrated into each channel. This provides complete electrical separation between your sensitive 5V microcontroller circuitry and the potentially dangerous high-voltage loads, protecting your development board from electrical noise, surges, and back-EMF from inductive loads.

The 5V 8-Channel Relay Module operates directly from a 5V DC supply, making it perfectly compatible with popular development boards like Arduino Uno, Arduino Mega, ESP32, ESP8266, and Raspberry Pi. The control signals for each relay are typically TTL compatible and often feature active-low triggering, meaning you can activate a relay by simply pulling its corresponding input pin LOW. Each relay channel includes its own LED indicator, providing clear visual feedback on its current ON/OFF status, which greatly assists in debugging. With independent Normally Open (NO), Normally Closed (NC), and Common (COM) terminals for each relay, this 8-channel control board offers immense flexibility for configuring your circuits, making it an indispensable tool for any serious electronics enthusiast or engineer in Pune, Maharashtra, India.

The 5V 8-Channel Relay Module is a powerful solution for controlling multiple high-voltage appliances through a single board. It allows a microcontroller to interface with AC (up to 250V) or DC (up to 30V) devices such as motors, lights, fans, solenoids, and more. Each channel is opto-isolated for electrical protection, and an LED indicator shows the relay status.

With low-level triggering and a standard VCC/GND/INx interface, this module is highly compatible with Arduino, ESP8266, Raspberry Pi, and other 5V logic controllers. This makes it ideal for home automation, industrial control, remote switching, and IoT applications.

Key Features:

• 8 Independent Relay Channels (SPDT)

• Opto-isolated inputs for each relay for improved safety

• Low-level trigger design for easy control with 5V logic

• Status LED indicators for each channel

• Capable of switching both AC and DC loads

• Screw terminals for secure load connection

• Mounting holes for panel integration

• Long-life relays with mechanical durability >100,000 cycles

Technical Specifications:

How to Use:

1. Connect VCC to 5V and GND to ground of your controller.

2. Connect IN1–IN8 to digital GPIO pins.

3. Send LOW signal to activate the respective relay channel.

4. Use screw terminals to connect AC/DC loads.

Use external power supply for relay coils if switching high-power loads to avoid MCU reset.

Applications:

• Home automation systems (lighting, fans, appliances)

• IoT projects for multi-device control

• Industrial control panels

• Agriculture automation (irrigation, motor pumps)

• Remote switching via WiFi/Bluetooth

• Educational and robotics kits

• Sensor-triggered automation systems

Package Includes:

• 1 x 5V 8-Channel Relay Module (8CH)