Skills Dev 1: A Simple Internet Appliance

As you can see in the videos below, I was able to make the light blink on and off every 3 seconds, blink on and off 5 times then stop for 3 seconds, and have two LEDs alternate.

For this project, everything worked the first time. I liked being able to control what the lights did, and experimented with how short I could make the delay with the two LEDs and still perceive them flashing back and forth. That turned out to be 30 milliseconds.

Exercise 1: https://youtu.be/kgB04jk-u9U

Exercise 2: https://youtu.be/99xmrp1OqZs

Exercise 3: https://youtu.be/AUiiRDNJ3Z4

Exercise 1

int ledPin = D2;

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  digitalWrite(ledPin, HIGH); 
  delay(1000); 

  digitalWrite(ledPin, LOW);
  delay(1000); 

}

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Exercise 2

int ledPin = D2;

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  digitalWrite(ledPin, HIGH);
  delay(500);

  digitalWrite(ledPin, LOW);
  delay(500); 
  
    digitalWrite(ledPin, HIGH);
  delay(500);

  digitalWrite(ledPin, LOW);
  delay(500); 
  
    digitalWrite(ledPin, HIGH);
  delay(500);

  digitalWrite(ledPin, LOW);
  delay(500); 
  
    digitalWrite(ledPin, HIGH);
  delay(500);

  digitalWrite(ledPin, LOW);
  delay(500); 
  
    digitalWrite(ledPin, HIGH);
  delay(500);

  digitalWrite(ledPin, LOW);
  delay(3000); 
  

}

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Exercise 3

int ledPin = D2;
int ledPin2 = D3;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(ledPin2, OUTPUT);
}

void loop() {
  digitalWrite(ledPin, HIGH);
  digitalWrite(ledPin2, LOW);
  delay(500);

  digitalWrite(ledPin, LOW); 
  digitalWrite(ledPin2, HIGH);
  delay(500); 
  

}

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