//ENME461 Lab 1, P3

// One LED turns on, delay one second.
// • The other LED turns on, delay one second
// • Turn off all LEDs
// • One LED blinks five times, one second on, one second off, red turns off
// • The other LED blinks five times, one second on, one second off, green turns off
// • Note that each LED must be made series with a resistor.
// • Hint: Use while or for loops. Many online references explain the syntax and the process.

int greenpin1 = 2;
int redpin2 = 5;
int totalblinks = 5;
int blinkcounter = 0;


void setup() {

  pinMode(greenpin1, OUTPUT); 
  pinMode(redpin2, OUTPUT); 
}

void loop() {
  digitalWrite(greenpin1, HIGH); // One LED turns on, delay one second.
  delay(1000); //never specifies to turn pin 1 off. 
  digitalWrite(redpin2, HIGH); // • The other LED turns on, delay one second
  delay(1000); //both pins on.

  //turn pins off
  digitalWrite(greenpin1, LOW); // One LED turns on, delay one second.
  digitalWrite(redpin2, LOW);
  delay(750);
  
  //blink green 5x. 
  while(blinkcounter < totalblinks) {
    digitalWrite(greenpin1, HIGH);
    delay(1000);
    digitalWrite(greenpin1, LOW);
    delay(1000);
    blinkcounter += 1;
  }

  blinkcounter = 0; //reset blink counter.

  //next loop. red blink 5x
    while(blinkcounter < totalblinks) {
    digitalWrite(redpin2, HIGH);
    delay(1000);
    digitalWrite(redpin2, LOW);
    delay(1000);
    blinkcounter += 1;
  }
  delay(1500); //at this point, both LED's should be off. 3 sec delay before restarting to show full loop.
}