Skills Dev I : Yashasvi

// first sketch
// declare a variable and load it with value
int ledPinRed = D2;

void setup(){
    // set D2 as output pin
    pinMode(ledPin, OUTPUT);
}

void loop(){
    //switch it on
    digitalWrite(ledPin, HIGH);
    // wait for a second
    delay(1000);
    // switch it off
    digitalWrite(ledPin, LOW);
    // wait for a second
    delay(1000);
    // repeat
}

// declare a variable and load it with value
int ledPin = D2;

void setup(){
    // set D2 as output pin
    pinMode(ledPin, OUTPUT);
}

void loop(){
    //switch it on
    digitalWrite(ledPin, HIGH);
    // wait for three seconds
    delay(3000);
    // switch it off
    digitalWrite(ledPin, LOW);
    // wait for three seconds
    delay(3000);
    // repeat
}

// exercise 2
// declare a variable and load it with value
int ledPin = D2;

void setup(){
    // set D2 as output pin
    pinMode(ledPin, OUTPUT);
}   

void loop(){
    // loop to blink 5 time
    for (int i=1; i<6; i++){
        digitalWrite(ledPin, HIGH);
        delay(500);
        digitalWrite(ledPin, LOW);
        delay(500);
    }
    // create a 3 second delay
    delay(3000);
}

// exercise 3
// declare a variable and load it with value
int ledPinRed = D2;
int ledPinBlue = D4;

void setup(){
    // set D2 as output pin
    pinMode(ledPinRed, OUTPUT);
    pinMode(ledPinBlue, OUTPUT);
}      
    
void loop(){
    // switch red it on
    digitalWrite(ledPinRed, HIGH);
    // wait for 1 second
    delay(1000);
    // switch it off
    digitalWrite(ledPinRed, LOW);
    // switch blue on
    digitalWrite(ledPinBlue, HIGH);
    // wait for 1 second
    delay(1000);
    // switch it off
    digitalWrite(ledPinBlue, LOW);
    // code will repeat 
}

//controlling LED from Cloud
// declare a variable and load it with value
int ledPin = D2;

void setup() {
    pinMode(ledPin, OUTPUT);
    digitalWrite(ledPin, LOW);
    Particle.function("led", ledControl);
}

void loop() {
}

int ledControl(String command)
{
   int state = LOW;
   if(command =="HIGH"){
       state = HIGH;
   }else if(command == "LOW"){
       state = LOW;
   }else{
	   return -1;
   }
   
   digitalWrite(ledPin, state);
   return 1;
}

//Cloud Control: Exercise 1
// declare a variable and load it with value
int ledPin = D2;

void setup() {
    // set D2 as output pin
    pinMode(ledPin, OUTPUT);
    // led to be off at start
    digitalWrite(ledPin, LOW);
    //Register our Particle function here
    Particle.function("led", ledControl);
}

void loop() {
}

int ledControl(String command)
{
  int state = LOW;
  // blinking the number of times mentioned
  if(command == "HIGH"){
      // blink 3 times
      for (int i=1; i<4; i++){
          digitalWrite(ledPin, HIGH);
          delay(500);
          digitalWrite(ledPin, LOW);
          delay(500);
      }
  }else if(command == "LOW"){ 
	   state = LOW;
  }else{
	   return -1;
  }

  // write to the appropriate pin
  digitalWrite(ledPin, state);
  return 1;
}

//Cloud Control: Exercise 2
// declare a variable and load it with value
int ledPin = D2;

void setup() {
    // set D2 as output pin
    pinMode(ledPin, OUTPUT);
    // led to be off at start
    digitalWrite(ledPin, LOW);
    //Register our Particle function here
    Particle.function("led", ledControl);
}

void loop() {
}

int ledControl(String command)
{
  int state = LOW;
  // string to integer
  int num = command.toInt();
  // blinking the number of times mentioned
  if(num > 0){
      for (int i=1; i<num+1; i++){
      digitalWrite(ledPin, HIGH);
      delay(500);
      digitalWrite(ledPin, LOW);
      delay(500);
  }
  }else{
	   return -1;
  }
  // write to the appropriate pin
  digitalWrite(ledPin, state);
  return 1;
}

// Cloud Control: Exercise 3
// declare a variable and load it with value
int ledPinRed = D2;
int ledPinBlue = D5;

void setup() {
    pinMode(ledPinRed, OUTPUT);
    pinMode(ledPinBlue, OUTPUT);
    digitalWrite(ledPinRed, LOW);
    digitalWrite(ledPinBlue, LOW);
    Particle.function("led", ledControl);
}

void loop() {
}

int ledControl(String command)
{
   int state = LOW;
   if(command =="Red"){
       digitalWrite(ledPinRed, HIGH);
       digitalWrite(ledPinBlue, LOW);
   }else if(command == "Blue"){
       digitalWrite(ledPinBlue, HIGH);
       digitalWrite(ledPinRed, LOW);
   }else{
	   return -1;
   }
   return 1;
}