This is a 5V 4-Channels Relay module, It can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and MSP430.
4 relays are included in this module, with “NC” ports means “Normally connected to COM” and “NO” ports means “Normally open to COM”. This module also equipped with 4 LEDS to show the status of relays.
- 4 mechanical relays with status indicator LED
- Both “NC” and “NO” ports for each relay
Please visit Itead's wiki page for more info about this product.
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