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.

Features

• Both “NC” and “NO” ports for each relay
• 4 mechanical relays with status indicator LED

Specifications

• Operating Voltage: 5 V
• Power Supply: 5 V
• Board Size: 8 x 4.8 x 2 cm
• Weight: 70 g