1-Channel 5V Relay Module, Active Low Trigger

1-Channel 5V Relay Module, Active Low Trigger

The 1-Channel 5V Relay Module (Active Low) provides an easy and reliable solution for controlling high-voltage AC or DC loads with low-power control signals. It operates using a 5V supply voltage, making it fully compatible with Arduino, Raspberry Pi, ESP8266, ESP32, PIC, AVR, and other microcontrollers.

This module uses an active low trigger input, meaning the relay switches when the input pin is pulled low. It integrates an opto-isolator to protect the microcontroller from voltage spikes and a flyback diode across the coil to prevent back-EMF damage. Its compact design makes it suitable for DIY projects, automation systems, and industrial control setups where reliable switching of appliances or devices is required.

Key Features

• Provides single relay channel with 5V operation for versatile switching applications.

• Uses an active low trigger signal for easy microcontroller and circuit interfacing.

• Includes opto-isolator protection to safeguard sensitive controllers from electrical surges.

• Features flyback diode across coil to prevent damage from voltage spikes.

• Supports both AC and DC loads for flexible switching in various projects.

• Handles up to 10A current, suitable for household and industrial devices.

• Provides screw terminal connections ensuring secure and reliable load wiring installations.

Applications

• Used to control household appliances with microcontrollers in smart home automation systems.

• Provides safe switching of AC loads such as lamps, fans, and heaters.

• Controls DC motors, pumps, or fans in embedded designs and automation circuits.

• Interfaces Arduino, Raspberry Pi, or ESP modules with high-voltage electrical equipment.

• Implements automated industrial systems requiring reliable switching of different electrical loads.

• Helps create IoT devices that manage and monitor household power-driven appliances automatically.

• Ensures safe control of devices in robotics, hobby electronics, and test setups.

Specifications Table