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Relay Shield v3.0
The Relay Shield provides four high quality relay that can control high current loads to Arduino / Seeeduino boards. It also provides NO (Normally Open) / NC (Normally Closed) interface. It could be a nice solution for controlling devices that could not be directly controlled by Arduino's Digital I/Os. Standardized shield form factor enables smooth connection with Arduino and compatibles. The shield also has four LED indicators to show the on/off state of each relay.
Relays are useful in switching on/off AC appliances like fan, light, motor or high current DC actuators like solenoid valve etc
Note: Exercise caution when dealing with AC. Get help from certified electrician.
Features:
- Arduino/Seeeduino Shield compatible
- Relay screw terminals
- Working status indicators for each relay
- High quality relays
- Provides NO/NC interfaces
Technical Specifications:
- Operating voltage: 4.75V~5.25V
- Operating current: 8~250 mA
- Switching Voltage: 250VAC/30VDC
- Switching Current: 15A/7A
- Frequency: 1Hz
- Switching Power: 70W
- Relay Life: 100,000 Cycle
- ESD contact discharge: ±4KV
- ESD air discharge: ±8
- Dimension: 68.7 x 53.5 x 30.8 mm
- Net Weight: 55±2 g
CHANNEL1 INTERFACE:
- COM1 - Common pin
- NC1 - Normally Closed. Will be connected with COM1 when RELAY1 pin is set low and disconnected when RELAY1 is high;
- NO1 - Normally Open. Will be connected with COM1 when RELAY 1 pin is set high and disconnected when RELAY1 is low;
4 DIGITAL PINS TO CONTROL 4 RELAYS:
- RELAY1-RELAY4 pins could be connected directly with Arduino pin number of 7-4, so that four relays could be easily controlled by the Arduino