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Adjustable Infrared Sensor Switch


This infrared distance switch features a high-sensitivity photoreflector to perform distance detection function,ranging from 3cm to 80cm. When the infrared light emitted by the emitter gets reflected on a surface that blocked it, the phototransistor can pick up the signal for distance calculation. Also a potentiometer for adjustment is arranged for easy and clear use. It is small, easy to use/assemble, and inexpensive. Useful for robotics, interactive media, industrial assembly line, etc.
Model: SOD00380S

Adjustable Infrared Sensor Switch 3 - 80cm2.jpg


  • Power supply: 5V
  • Current: 100mA
  • Range: 3-80cm adjustable
  • Red: +5V
  • Yellow: Signal
  • Black: GND
  • Wire length: 20cm



Connect this sensor to your Arduino/Crowduino digital pins( D2 for example). When there is an object behind this sensor, the output would be low. Adjustable infrared sensor1 hardware1.jpg


1.Download the following program to Arduino, Please refer to here

void setup()  {
void loop()  {
 while(1)  {
   if(digitalRead(2)==LOW)  {
     Serial.println("object detected.");
   else  {
     Serial.println("no object detected.");
} the serial monitor , and set the baudrate to 9600, you will see the output changes with the object behind this sensor or not.
Infrared Sensor Switch test result.jpg Infrared Sensor Switch test result1.jpg