Arduino Examples
Blink
/*
* Blink
*
* The basic Arduino example. Turns on an LED on for one second,
* then off for one second, and so on... We use pin 13 because,
* depending on your Arduino board, it has either a built-in LED
* or a built-in resistor so that you need only an LED.
*
* http://www.arduino.cc/en/Tutorial/Blink
*/
int ledPin = 13; // LED connected to digital pin 13
void setup() // run once, when the sketch starts
{
pinMode(ledPin, OUTPUT); // sets the digital pin as output
}
void loop() // run over and over again
{
digitalWrite(ledPin, HIGH); // sets the LED on
delay(1000); // waits for a second
digitalWrite(ledPin, LOW); // sets the LED off
delay(1000); // waits for a second
}
Blink Modification
/*
* Blinkmod
*
* Modification on basic Arduino example. Turns on an LED on for 10 ms,
* then off for 10 ms, and so on... We use pin 13 because,
* depending on your Arduino board, it has either a built-in LED
* or a built-in resistor so that you need only an LED.
*
* http://www.arduino.cc/en/Tutorial/Blink
*/
int ledPin = 13; // LED connected to digital pin 13
void setup() // run once, when the sketch starts
{
pinMode(ledPin, OUTPUT); // sets the digital pin as output
}
void loop() // run over and over again
{
digitalWrite(ledPin, HIGH); // sets the LED on
delay(10); // waits for a second
digitalWrite(ledPin, LOW); // sets the LED off
delay(10); // waits for a second
}
Hello World!
/*
* Hello World!
*
* This is the Hello World! for Arduino.
* It shows how to send data to the computer
*/
void setup() // run once, when the sketch starts
{
Serial.begin(9600); // set up Serial library at 9600 bps
}
void loop() // run over and over again
{
Serial.println("Hello world!"); // prints hello with ending line break
delay(1000);
}
Math
/*
* Math is fun!
*/
int a = 5;
int b = 10;
int c = 20;
void setup() // run once, when the sketch starts
{
Serial.begin(9600); // set up Serial library at 9600 bps
Serial.println("Here is some math: ");
Serial.print("a = ");
Serial.println(a);
Serial.print("b = ");
Serial.println(b);
Serial.print("c = ");
Serial.println(c);
Serial.print("a + b = "); // add
Serial.println(a + b);
Serial.print("a * c = "); // multiply
Serial.println(a * c);
Serial.print("c / b = "); // divide
Serial.println(c / b);
Serial.print("b - c = "); // subtract
Serial.println(b - c);
}
void loop() // we need this to be here even though its empty
{
}
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