TheRelay Shieldprovides 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.
KEY FEATURES
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- Arduino/Seeeduino Shield compatible
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- Relay screw terminals
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- Working status indicators for each relay
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- High quality relays
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- Provides NO/NC interfaces
TECHNICAL SPECIFICATIONS
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- Operating voltage: 4.75V~5.25V
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- Operating current: 8~250 mA
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- Switching Voltage: 250VAC/30VDC
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- Switching Current: 15A/7A
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- Frequency: 1Hz
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- Switching Power: 70W
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- Relay Life: 100000 Cycle
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- ESD contact discharge: ±4KV
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- ESD air discharge: ±8
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- Dimension: 68.7 x 53.5 x 30.8 mm
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- Net Weight: 55±2 g
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
