This 5V 4-channels relay module allows you to control high voltage devices using a 5V signal, making it ideal for home automation. This module can be controlled directly by a wide range of microcontrollers.
This module can be controlled directly by a wide range of microcontrollers such as AVR, ARM, PIC, Arduino, and MSP430.
This module has 4 relays with NC (Normally connected to COM) and NO (Normally open to COM) ports.
It also have 4 LEDs on-board for status indicator of each relay.