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Specifications
- Rating: 10A (250V AC or 30 V DC)
- Input (Control) voltage: 5V DC
How to connect
The connections to your Arduino (or microcontroller) side:
- VCC – supply voltage. 5V from my Arduino.
- IN1 – set to HIGH to set the relay to its “default” state, set to LOW to switch the relay to its alternate state
- IN2 – same as IN1, but controls the second relay on the board
- IN3 – same as IN1, but controls the second relay on the board
- IN4 – same as IN1, but controls the second relay on the board
- GND – ground
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