The keyestudio relay shield has integrated a 4-channel 5V relay module, which is fully compatible with UNO R3 control board. The 4-channel relay on the shield is active at HIGH level. Separately connect the 4-channel relay to the digital port 4, 5, 6, 7 on the UNO R3 board, then through controlling output HIGH or LOW to control the relay on and off.
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The relay shield is 5V active HIGH
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Contact capacity: AC120V / 3A ; DC24V/3A
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Onboard LED indicator for relay output status
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Indicator: 4 LEDs are red when the relay is driven high, the corresponding indicator will light up.
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Standard interface can be directly connected with microcontrollers.
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Fully compatible with UNO R3 board
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Be able to control various appliances and other equipment with large current.
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3 M3 screw positioning holes for easy installation
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Power Interface: 5V DC power interface
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Channel: 4 channel
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PCB Color: Black
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Size: 69mm*54mm*26mm
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Weight: 39.4g
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