Description A 4 Channel Relay Module is an electronic device that allows you to control four high-voltage appliances or devices using low-voltage signals from microcontrollers like Arduino or Raspberry Pi. Each channel contains an electromagnetic relay switch that can be activated independently, enabling you to control multiple devices such as lights, fans, or motors. It provides electrical isolation through optocouplers, ensuring safety and protecting your controller from voltage spikes. This module is ideal for home automation, robotics, and industrial control systems. With easy wiring and reliable switching performance, the 4 Channel Relay Module is a versatile and essential component in many electronic projects.
