Blink 2: Tasks 11 - 16

This the original Blink 2 program (Task 11):

int ledPin13 = 13;
int ledPin12 = 12;
int del = 500;


void setup() {
pinMode(ledPin13, OUTPUT);
pinMode(ledPin12, OUTPUT);
}

void loop()
{
digitalWrite(ledPin13, HIGH);
digitalWrite(ledPin12, LOW);
delay(del);
digitalWrite(ledPin13, LOW);
digitalWrite(ledPin12, HIGH);
delay(del);
}


This is a variation where one LED blinks when the other one is off (Task 12):

int ledPin13 = 13;
int ledPin12 = 12;
int del = 500;


void setup() {
pinMode(ledPin13, OUTPUT);
pinMode(ledPin12, OUTPUT);
}

void loop()
{
digitalWrite(ledPin12, LOW);
delay(del);
digitalWrite(ledPin13, LOW);
delay(del);
digitalWrite(ledPin13, HIGH);
delay(del);
digitalWrite(ledPin13, LOW);
delay(del);
digitalWrite(ledPin12, LOW);
delay(del);
digitalWrite(ledPin12, HIGH);
delay(del);
}


This is a variation where one LED is mostly on, and the other mostly off (Task 13):

int ledPin13 = 13;
int ledPin12 = 12;
int del = 1000;


void setup() {
pinMode(ledPin13, OUTPUT);
pinMode(ledPin12, OUTPUT);
}

void loop()
{
digitalWrite(ledPin13, HIGH);
digitalWrite(ledPin12, LOW);
delay(del);
digitalWrite(ledPin13, LOW);
digitalWrite(ledPin12, HIGH);
delay(del/10);
}


This variation is like the last, but the LEDs are reversed (Task 14):

int ledPin13 = 13;
int ledPin12 = 12;
int del = 1000;


void setup() {
pinMode(ledPin13, OUTPUT);
pinMode(ledPin12, OUTPUT);
}

void loop()
{
digitalWrite(ledPin13, HIGH);
digitalWrite(ledPin12, LOW);
delay(del/10);
digitalWrite(ledPin13, LOW);
digitalWrite(ledPin12, HIGH);
delay(del);
}


This is a veriation where one LED blinks twise, then the other one blinks once (Task 16):

int ledPin13 = 13;
int ledPin12 = 12;
int del = 500;


void setup() {
pinMode(ledPin13, OUTPUT);
pinMode(ledPin12, OUTPUT);
}

void loop()
{
digitalWrite(ledPin12, LOW);
digitalWrite(ledPin13, LOW);
delay(del);
digitalWrite(ledPin13, HIGH);
delay(del);
digitalWrite(ledPin13, LOW);
delay(del);
digitalWrite(ledPin13, HIGH);
delay(del);
digitalWrite(ledPin13, LOW);
digitalWrite(ledPin12, LOW);
delay(del);
digitalWrite(ledPin12, HIGH);
delay(del);
}