Robot Car Using Arduino | Part 4 (Beginner Bots)

ir-readings.ino

/*
 * Using IR Sensors for Line Following & Avoidance
 * Configures IR Sensors for data collection
 * Developed for the Beginner Bots lesson series on www.learnrobotics.org/blog
 * Written by Liz Miller
 * 5/14/2018
 */

/** Global Variables **/
int leftIR = 2;
int rightIR = 12;

void setup(){
  // Setup the serial communication
  Serial.begin(9600);

  // both IR sensors are INPUTS
  pinMode(leftIR, INPUT);
  pinMode(rightIR, INPUT);
}

// get readings from the leftIR sensor & display on serial monitor
void loop(){
  //create a variable to store the reading
  int leftIRvalue=digitalRead(leftIR);

  //display the reading in the Serial Monitor
  Serial.println(leftIRvalue);

  //re-read every 5000 miliseconds (5 seconds)
  delay(5000);
}