The Dual Relay Module is an essential electronic component widely used in automation and control systems, particularly in conjunction with microcontrollers like Arduino and Raspberry Pi. This module allows for the control of high-power devices using low-power control signals, making it an indispensable tool for various applications in home automation, robotics, and industrial control systems.
What is a Dual Relay Module? A Dual Relay Module contains two independent relays, each capable of switching an electrical circuit on and off. These relays are typically controlled by digital signals from a microcontroller or other low-voltage circuits. The module provides a convenient way to control high-voltage devices, such as lights, motors, and home appliances, using just a simple low-voltage input signal. The core of the relay module is the relay switch, which is an electrically operated switch that can isolate the low-voltage control circuit from the high-voltage load. When the control signal activates the relay, it closes the circuit, allowing current to flow through the load device. This feature enables the control of AC or DC devices that operate at higher voltages or currents than the microcontroller could safely handle directly.