Getting Started with Arduino by kawaii nunyaro

welcome everyone

syunnnnn248 — 2018-08-29 02:18:54 UTC

Arduino basic workshop ,
6th Sept 2018

Digital Read/write (PUSH BUTTON AND LED)

syunnnnn248 — 2018-08-29 07:32:30 UTC

int LED=13; //LED is connected to digital pin 6
int button=7; //Push button is connected to digital pin 7.
int buttonstatus=0; //The word “buttonstatus” stands for the value 0.

void setup()
{ //The setup starts here
pinMode(LED, OUTPUT); //The pin connected to the LED (pin 6) is initialized as an output
pinMode(button, INPUT); //The pin connected to the button (pin 7) is initialized as an input.
}

void loop()
{ //The loop starts here
buttonstatus=digitalRead(button); //The value on pin 7 is read out

if (buttonstatus == HIGH) //If the button gets pushed (high voltage value)
{ //open program part of the if-command
digitalWrite(LED, HIGH); // LED will light up

}
else
{ //open the program part of the else-command
digitalWrite(LED, LOW); //the LED shouldn't light up
} //close the program part of the else-command
}

TRAFFIC LIGHT

syunnnnn248 — 2018-09-05 13:10:53 UTC

// variables
int GREEN = 8;
int YELLOW = 9;
int RED = 10;

void setup()
{
// setup LED modes as output
pinMode(GREEN, OUTPUT);
pinMode(YELLOW, OUTPUT);
pinMode(RED, OUTPUT);
}

void loop()
{
// High turns LED on
// Low turns LED off

// Turn on green LED
digitalWrite(GREEN, HIGH);
digitalWrite(YELLOW, LOW);
digitalWrite(RED, LOW);
delay(2000);

// Blink the green LED
digitalWrite(GREEN, LOW);
delay(300);
digitalWrite(GREEN, HIGH);
delay(300);
digitalWrite(GREEN, LOW);
delay(300);
digitalWrite(GREEN, HIGH);
delay(300);
digitalWrite(GREEN, LOW);
delay(300);
digitalWrite(GREEN, HIGH);
delay(300);

//Turns on yellow LED
digitalWrite(GREEN, LOW);
digitalWrite(YELLOW, HIGH);
digitalWrite(RED, LOW);
// how long we want the yellow led on
delay(2000);

//Turn on red LED
digitalWrite(GREEN, LOW);
digitalWrite(YELLOW, LOW);
digitalWrite(RED, HIGH);
delay(2000);
}// variables
int GREEN = 8;
int YELLOW = 9;
int RED = 10;

void setup()
{
// setup LED modes as output
pinMode(GREEN, OUTPUT);
pinMode(YELLOW, OUTPUT);
pinMode(RED, OUTPUT);
}

void loop()
{
// High turns LED on
// Low turns LED off

// Turn on green LED
digitalWrite(GREEN, HIGH);
digitalWrite(YELLOW, LOW);
digitalWrite(RED, LOW);
delay(2000);

// Blink the green LED
digitalWrite(GREEN, LOW);
delay(300);
digitalWrite(GREEN, HIGH);
delay(300);
digitalWrite(GREEN, LOW);
delay(300);
digitalWrite(GREEN, HIGH);
delay(300);
digitalWrite(GREEN, LOW);
delay(300);
digitalWrite(GREEN, HIGH);
delay(300);

//Turns on yellow LED
digitalWrite(GREEN, LOW);
digitalWrite(YELLOW, HIGH);
digitalWrite(RED, LOW);
// how long we want the yellow led on
delay(2000);

//Turn on red LED
digitalWrite(GREEN, LOW);
digitalWrite(YELLOW, LOW);
digitalWrite(RED, HIGH);
delay(2000);
}

CAR REVERSE ALARM

syunnnnn248 — 2018-09-05 13:15:10 UTC

// defines pins numbers
int trigPin = 9;
int echoPin = 10;
int buzzer = 11;
int ledPin = 13;

// defines variables
long duration;
int distance;

int safetyDistance;

void setup() {
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
pinMode(buzzer, OUTPUT);
pinMode(ledPin, OUTPUT);
Serial.begin(9600); // Starts the serial communication
}

void loop() {
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);

// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);

// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);

// Calculating the distance
distance= duration*0.034/2; //distance=(Time*speed of sound)/2

safetyDistance = distance;
if (safetyDistance <= 5){
tone(11,3000);
delay(500);
noTone(11);
digitalWrite(ledPin, HIGH);
}
else{
noTone(11);
digitalWrite(ledPin, LOW);
}

// Prints the distance on the Serial Monitor
Serial.print("Distance: ");
Serial.println(distance);
}