Lecture notes from 21-2-2018

//
// Operators example for Arduino
// Written by Ted Burke 21-2-2018
//

// TCRT5000 on D7
// Switch on D8

void setup()
{
  // Digital output pins to control motors
  pinMode(4, OUTPUT); // White LED
  pinMode(5, OUTPUT); // Green LED
  pinMode(6, OUTPUT); // Blue LED
}

void loop()
{
  int a, b;

  a = 1;
  b = 1;

  while (1)
  {
    a = digitalRead(8);
    b = digitalRead(7);
    
    digitalWrite(4, HIGH); // white on
    delay(100);
    digitalWrite(4, LOW); // white off
    delay(100);
  }
  
  // Flash blue LED for 5 seconds
  digitalWrite(6, HIGH);
  delay(1000);
  digitalWrite(6, LOW);
}

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