DFRobot 4 Channel Relay Shield for Arduino
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<b>[Product Information]</b><br>
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<li>This arduino relay shield acts like a switch. It is commonly used to control anything over 5V such as lamps, water pumps and garage doors.</li>
<li>This relay shield is an ideal solution for home automation and robotics applications</li>
<li>Compatible with Arduino UNO Rev3</li>
<li>Each Relay has its own test button to test the connection</li>
<li>Standard DFRobot 3 Pin out; XBee I/O direct control</li>
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