IoT Experiment 1-6: LED experiments with Arduino uno

Lab 1:   Blinking of an LED 

Aim: To demonstrate Blinking of an LED in Arduino uno

Components Required:

Ardunio Uno

Jumper wires

Breadboard 

LED

Register


Connection Diagram:


Code: 

void setup()

{

  pinMode(13, OUTPUT);

}


void loop()

{

  digitalWrite(13, HIGH);

  delay(1000); // Wait for 1000 millisecond(s)

  digitalWrite(13, LOW);

  delay(1000); // Wait for 1000 millisecond(s)

}


Result:


Successfully demonstrated Blinking of an LED

Lab 2: Blinking of LED alternatively in Arduino uno

 Aim: To demonstrate Blinking of an LED alternatively in Arduino uno

Components Required:

Ardunio Uno

Jumper wires

Breadboard 

LED

Register

Connection Diagram:

Code: 

void setup()
{
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
}

void loop()
{
  digitalWrite(13, HIGH);
  digitalWrite(12, LOW);
  delay(1000); // Wait for 1000 millisecond(s)
  digitalWrite(13, LOW);
  digitalWrite(12, HIGH);
  delay(1000); // Wait for 1000 millisecond(s)
}

Result:
 Successfully demonstrated Blinking of LED alternatively

Lab 3: Scrolling of 6 LEDs in Arduino uno

 Aim: To demonstrate scrolling of 6 LEDs in Arduino uno

Components required:

Ardunio Uno

Jumper wires

Breadboard 

LED

Register 


Connection Diagram: 

Code: 

int timer = 100; // The higher the number, the slower the timing.

void setup() {

        // use a for loop to initialize each pin as an output:

       for (int thisPin = 2; thisPin < 8; thisPin++) {

         pinMode(thisPin, OUTPUT);

      }

}



void loop()

{

 // loop from the lowest pin to the highest:

  for (int thisPin = 2; thisPin < 8; thisPin++) 

  {

  // turn the pin on:

  digitalWrite(thisPin, HIGH);

  delay(timer);

  // turn the pin off:

  digitalWrite(thisPin, LOW);

  } 

}

Result:
   Successfully demonstrated scrolling of LEDs

Lab 4: Scrolling of 6 LEDs back and front in Arduino uno

 Aim: To demonstrate Scrolling of 6 LEDs back and front in Arduino uno


Components Required:

Ardunio Uno

Jumper wires

Breadboard 

LED

Register

Connection diagram:


Code: 

int timer = 100; // The higher the number, the slower the timing.

void setup() {

        // use a for loop to initialize each pin as an output:

       for (int thisPin = 2; thisPin < 8; thisPin++) {

         pinMode(thisPin, OUTPUT);

      }

}

void loop() {

// loop from the lowest pin to the highest:

for (int thisPin = 2; thisPin < 8; thisPin++) {

// turn the pin on:

digitalWrite(thisPin, HIGH);

delay(timer);

// turn the pin off:

digitalWrite(thisPin, LOW);

}

// loop from the highest pin to the lowest:

for (int thisPin = 7; thisPin >= 2; thisPin--) {

// turn the pin on:

digitalWrite(thisPin, HIGH);

delay(timer);

// turn the pin off:

digitalWrite(thisPin, LOW);

}

}

Result: 

Successfully demonstrated scrolling of 6 LED back and front

Lab 5: Blinking of 6 Leds in Arduino uno

Aim: To demonstrate Blinking of 6 LED in Arduino uno

Components required:

Ardunio Uno

Jumper wires

Breadboard 

LEDs

Registers

Connection diagram

Code:

int timer = 100; // The higher the number, the slower the timing.

void setup() {

        // use a for loop to initialize each pin as an output:

       for (int thisPin = 2; thisPin < 8; thisPin++) {

         pinMode(thisPin, OUTPUT);

      }

}



void loop() {

  digitalWrite(2, HIGH);

  digitalWrite(3, HIGH);

  digitalWrite(4, HIGH);

  digitalWrite(5, HIGH);

  digitalWrite(6, HIGH);

  digitalWrite(7, HIGH);

  delay(timer);

// turn the pin off:

  digitalWrite(2, LOW);

  digitalWrite(3, LOW);

  digitalWrite(4, LOW);

  digitalWrite(5, LOW);

  digitalWrite(6, LOW);

  digitalWrite(7, LOW);

  delay(timer);

}

Result: 

Successfully demonstrated Blinking of 6 LEDs

Lab 6: Blinking 6 LEDs in ODD and EVEN fashion in arduino uno

 Aim: To demonstrate blinking 6 LEDs in ODD and EVEN fashion  

Components required:

Ardunio Uno

Jumper wires

Breadboard 

LEDs

Registers

Connection diagram:

Code:

int timer = 1000; // The higher the number, the slower the timing.

void setup() {

        // use a for loop to initialize each pin as an output:

       for (int thisPin = 2; thisPin < 8; thisPin++) {

         pinMode(thisPin, OUTPUT);

      }

}



void loop() {

  

 for (int i=0;i<20;i++)

 { 

    if(i%2==0)

    {

       digitalWrite(2, HIGH);

       digitalWrite(4, HIGH);

       digitalWrite(6, HIGH);

       digitalWrite(3, LOW);

       digitalWrite(5, LOW);

       digitalWrite(7, LOW);

       delay(timer);

    } else {

  

    digitalWrite(3, HIGH);  

  digitalWrite(5, HIGH);  

  digitalWrite(7, HIGH);  

// turn the pin off:

  digitalWrite(2, LOW);  

  digitalWrite(4, LOW);  

  digitalWrite(6, LOW);  

  delay(timer);

    }

 }

}

Result: 

Successfully demonstrated Blinking 6 LEDs in ODD and EVEN fashion

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