TCRT5000 IR Sensor Module Testing through Arduino NANO Part - 1

09 March 2022 

TCRT5000 IR sensor module is tested through the Arduino NANO board. The code was found on a website for the Arduino UNO board and modified for the NANO board.  

// Dr. Tariq Javid as of 07 March 2022

// Arduino Nano --->   TCRT5000

// Modified code from https://github.com/DIY-Machines/TCRT5000

const int pinIRd = 0;     // D0 Digital input

const int pinIRa = A0;  // Analog input 

const int pinLED = 13; // Builtin LED

int IRvalueA = 0;

int IRvalueD = 0;

void setup()

{

  Serial.begin(9600);

  pinMode(pinIRd,INPUT);

  pinMode(pinIRa,INPUT);

  pinMode(pinLED,OUTPUT);

}

void loop()

{

  IRvalueA = analogRead(pinIRa);

  IRvalueD = digitalRead(pinIRd);

    if (IRvalueD == LOW) {  // Detection

        digitalWrite(LED_BUILTIN, HIGH);

    }

    else {               // No Detection

        digitalWrite(LED_BUILTIN, LOW);

        // IRvalueD == 1;

    }  

  Serial.print("Digital Reading = ");

  Serial.print(IRvalueD);

  Serial.print("\t Analog Reading = ");

  Serial.print(IRvalueA);

  Serial.print("\n");

  // delay 1 sec

  delay(1000);

}