Arduino 4 relays shield
Arduino 4 relays shield Arduino 4 relays shield Arduino 4 relays shield Arduino 4 relays shield
$22.00
The Arduino 4 Relays Shield allows your Arduino driving high power loads that cannot be controlled directly by Arduino's digital pins. The Shield features four relays, each relay with 2 pole changeover contacts (NO and NC). Four LEDs indicate the on/off state of each relay.