"LED shifting using push-button and Arduino nano"

 

 "LED shifting using push-button and Arduino nano"

This project uses an Arduino Nano in 3 Different colors Led and Push-Button to Shifting led on.

This use to Decoration Lights and toys etc.

you use to 3 to more Led this project.

* Circuit Diagram :

Link get Blowe

View this video.    https://youtu.be/9uNiHqaziqs

Code:

int ledy=10;

int ledw=9;

int ledr=8;

int buttonpin=2;

int stateOfPin=0;

int oldStateOfPin=0;

int buttonState=0;

void setup()

{

    pinMode(ledy,OUTPUT);

    pinMode(ledw,OUTPUT);

    pinMode(ledr,OUTPUT);

    pinMode(buttonpin,INPUT);

}

void loop()

{

    buttonState = digitalRead(buttonpin);

    if (buttonState == 1)

    {

        delay(50);

        buttonState=digitalRead(buttonpin);

        if(buttonState==0)

        {

            stateOfPin=oldStateOfPin+1;

        }

    }

    else

    {

        delay(50);

    }

    switch(stateOfPin)

    {

        case 1:

        digitalWrite(ledy,HIGH);

        delay(200);

        digitalWrite(ledy,LOW);

        delay(200);

        

        oldStateOfPin = stateOfPin;

        break;

        case 2:

        digitalWrite(ledw,HIGH);

        delay(200);

        digitalWrite(ledw,LOW);

        delay(200);

        

        oldStateOfPin = stateOfPin;

        break;

        case 3:

        digitalWrite(ledr,HIGH);

        delay(200);

        digitalWrite(ledr,LOW);

        delay(200);

        

        oldStateOfPin = stateOfPin;

        break;

        default:

        digitalWrite(ledy,LOW);

        digitalWrite(ledw,LOW);

        digitalWrite(ledr,LOW);

        

        oldStateOfPin=0;

        break;

           }

}

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