Week 8 - Journal

Title of Media

Tinkercad design, imaging that there is bluetooth device

the code:

// Definig the constant integers we will use in the circuit by their pins no.

const int buzzer = 2;

const int redPin = 11;

const int greenPin = 10;

const int bluePin = 9;

char incomingdata = '0'; //character variable with initial data = 0

void setup() {

Serial.begin(9600);

//Defining the color lights and buzzer as outputs

pinMode(redPin, OUTPUT);

pinMode(greenPin, OUTPUT);

pinMode(bluePin, OUTPUT);

pinMode(buzzer, OUTPUT);

}

void loop() {

while (Serial.available() == 0);

incomingdata = Serial.read(); // reciving the read from the mobile app and store it in incomingdata variable

// the conditions are if the recived data =1, red light is on;

// if the recived data =2, green light is on

//if the recived data =3, blue light is on

//if the recived data =4, no light is on

// else any number is going to turn the buzzer on

if (incomingdata == '1') {

digitalWrite(redPin, HIGH);

digitalWrite(greenPin, LOW);

digitalWrite(bluePin, LOW);

} else if (incomingdata == '2') {

digitalWrite(redPin, LOW);

digitalWrite(greenPin, HIGH);

digitalWrite(bluePin, LOW);

} else if (incomingdata == '3') {

digitalWrite(redPin, LOW);

digitalWrite(greenPin, LOW);

digitalWrite(bluePin, HIGH);

} else if (incomingdata == '4') {

digitalWrite(redPin, LOW);

digitalWrite(greenPin, LOW);

digitalWrite(bluePin, LOW);

} else {

tone(2, 523, 2000); // play tone 60 (C5 = 523 Hz)

}

}