139741 Arduino Infrared Obstacle Avoidance Detection Photoelectric Sensor



Arduino Infrared Obstacle Avoidance Detection Photoelectric Sensor

Transmitter and receiver photoelectric sensor set; Voltage: DC 5V, current: 100mA, detection range: 3~80cm (adjustable); with potentiometer and output indicator light on the back


 * Output current: 100mA
 * Working voltage: DC 5V
 * Current consumption: DC < 25mA
 * Response time: < 2ms
 * Sensing angle: Less than 15 degree
 * Detecting range: 3~80 cm
 * Working temperature: -25~55'C
 * Wiring:
 * red (DC 4.5~5V power high level)
 * yellow (microcontroller) yellow is signal (with 10KOhm to the +)
 * green (GND 0V power low level)

see also Obstacle Avoidance IR Robotic Sensor for Arduino - Yellow + Black (DC 5V)

Arduino sketch
/* Code sample for 139741 Arduino Infrared Obstacle Avoidance Detection Photoelectric Sensor Output current: 100mA Working voltage: DC 5V Current consumption: DC < 25mA Response time: < 2ms Sensing angle: Less than 15 degree Detecting range: 3~80 cm   Working temperature: -25~55'C    Wiring: red (DC 4.5~5V power high level) yellow (Pin A0 microcontroller) green (GND 0V power low level)

This code is in the public domain. */

const int analogInPin = A0; // Analog input pin that the sensor is attached to

int sensorValue = 0;       // value read from the pot

void setup { // initialize serial communications at 9600 bps: Serial.begin(9600); }

void loop { // read the analog in value: sensorValue = analogRead(analogInPin);

// print the results to the serial monitor: Serial.print("sensor = " ); Serial.print(sensorValue); Serial.print("\t distance = "); Serial.println(map(sensorValue, 0, 1023, 3, 80));

// wait 2 milliseconds before the next loop // for the analog-to-digital converter to settle // after the last reading: delay(2); }