Example Code for Arduino-Digital Signal Reading

Software Preparation

Arduino software. For more details, please check the official PinMode function description.

Wiring Diagram

• RED--->VCC
• YELLOW-->Signal
• GREY-->GND

Other Preparation Work

For making the sensor working more stable with your arduino processor, we use an external resistor(range from 1K to 10K) for pull-up!

However, it's also available to connect the signal pin directly to the Arduino digital pin for testing. Just take care of the pin mode initialization in your Arduino software. Set the "INPUT_PULLUP" mode for the digital detection. For more details, please check the official PinMode function description.

Sample Code

void setup()
{
 pinMode(3,INPUT);
 Serial.begin(9600);
}
void loop()
{
  int val=digitalRead(3);
  Serial.println(val);
  delay(500);
}