theremin controlado por luz

VÍDEO 1:



CÓDIGO:

/*
  Arduino Starter Kit example
 Project 6  - Light Theremin

 This sketch is written to accompany Project 6 in the
 Arduino Starter Kit

 Parts required:
 photoresistor
 10 kilohm resistor
 piezo

 Created 13 September 2012
 by Scott Fitzgerald

 http://arduino.cc/starterKit

 This example code is part of the public domain
*/

// variable to hold sensor value
int sensorValue;
// variable to calibrate low value
int sensorLow = 1023;
// variable to calibrate high value
int sensorHigh = 0;
// LED pin
const int ledPin = 13;

void setup() {
  // Make the LED pin an output and turn it on
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, HIGH);

  // calibrate for the first five seconds after program runs
  while (millis() < 5000) {
    // record the maximum sensor value
    sensorValue = analogRead(A0);
    if (sensorValue > sensorHigh) {
      sensorHigh = sensorValue;
    }
    // record the minimum sensor value
    if (sensorValue < sensorLow) {
      sensorLow = sensorValue;
    }
  }
  // turn the LED off, signaling the end of the calibration period
  digitalWrite(ledPin, LOW);
}

void loop() {
  //read the input from A0 and store it in a variable
  sensorValue = analogRead(A0);

  // map the sensor values to a wide range of pitches
  int pitch = map(sensorValue, sensorLow, sensorHigh, 50, 4000);

  // play the tone for 20 ms on pin 8
  tone(8, pitch, 20);

  // wait for a moment
  delay(10);

}

VÍDEO 2:

CÓDIGO: 
/*
  Arduino Starter Kit example
 Project 6  - Light Theremin

 This sketch is written to accompany Project 6 in the
 Arduino Starter Kit

 Parts required:
 photoresistor
 10 kilohm resistor
 piezo

 Created 13 September 2012
 by Scott Fitzgerald

 http://arduino.cc/starterKit

 This example code is part of the public domain
*/

// variable to hold sensor value
int sensorValue;
// variable to calibrate low value
int sensorLow = 1023;
// variable to calibrate high value
int sensorHigh = 0;
// LED pin
const int ledPin = 13;

void setup() {
  // Make the LED pin an output and turn it on
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, HIGH);

  // calibrate for the first five seconds after program runs
  while (millis() < 50) {
    // record the maximum sensor value
    sensorValue = analogRead(A0);
    if (sensorValue > sensorHigh) {
      sensorHigh = sensorValue;
    }
    // record the minimum sensor value
    if (sensorValue < sensorLow) {
      sensorLow = sensorValue;
    }
  }
  // turn the LED off, signaling the end of the calibration period
  digitalWrite(ledPin, LOW);
}

void loop() {
  //read the input from A0 and store it in a variable
  sensorValue = analogRead(A0);

  // map the sensor values to a wide range of pitches
  int pitch = map(sensorValue, sensorLow, sensorHigh, 50, 4000);

  // play the tone for 20 ms on pin 8
  tone(8, pitch, 20);

  // wait for a moment
  delay(10);

}

lampara de colores

CÓDIGO:

*
  Arduino Starter Kit example
 Project 4  - Color Mixing Lamp

 This sketch is written to accompany Project 3 in the
 Arduino Starter Kit

 Parts required:
 1 RGB LED
 three 10 kilohm resistors
 3 220 ohm resistors
 3 photoresistors
 red green and blue colored gels

 Created 13 September 2012
 Modified 14 November 2012
 by Scott Fitzgerald
 Thanks to Federico Vanzati for improvements

 http://arduino.cc/starterKit

 This example code is part of the public domain
 */

const int greenLEDPin = 9;    // LED connected to digital pin 9
const int redLEDPin = 10;     // LED connected to digital pin 10
const int blueLEDPin = 11;    // LED connected to digital pin 11

const int redSensorPin = A0;  // pin with the photoresistor with the red gel
const int greenSensorPin = A1;   // pin with the photoresistor with the green gel
const int blueSensorPin = A2;   // pin with the photoresistor with the blue gel

int redValue = 0; // value to write to the red LED
int greenValue = 0; // value to write to the green LED
int blueValue = 0; // value to write to the blue LED

int redSensorValue = 0; // variable to hold the value from the red sensor
int greenSensorValue = 0; // variable to hold the value from the green sensor
int blueSensorValue = 0; // variable to hold the value from the blue sensor

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600);

  // set the digital pins as outputs
  pinMode(greenLEDPin,OUTPUT);
  pinMode(redLEDPin,OUTPUT);
  pinMode(blueLEDPin,OUTPUT);
}

void loop() {
  // Read the sensors first:

  // read the value from the red-filtered photoresistor:
  redSensorValue = analogRead(redSensorPin);
  // give the ADC a moment to settle
  delay(5);
  // read the value from the green-filtered photoresistor:
  greenSensorValue = analogRead(greenSensorPin);
  // give the ADC a moment to settle
  delay(5);
  // read the value from the blue-filtered photoresistor:
  blueSensorValue = analogRead(blueSensorPin);

  // print out the values to the serial monitor
  Serial.print("raw sensor Values \t red: ");
  Serial.print(redSensorValue);
  Serial.print("\t green: ");
  Serial.print(greenSensorValue);
  Serial.print("\t Blue: ");
  Serial.println(blueSensorValue);

  /*
  In order to use the values from the sensor for the LED,
  you need to do some math. The ADC provides a 10-bit number,
  but analogWrite() uses 8 bits. You'll want to divide your
  sensor readings by 4 to keep them in range of the output.
  */
  redValue = redSensorValue/4;
  greenValue = greenSensorValue/4;
  blueValue = blueSensorValue/4;

  //  print out the mapped values
  Serial.print("Mapped sensor Values \t red: ");
  Serial.print(redValue);
  Serial.print("\t green: ");
  Serial.print(greenValue);
  Serial.print("\t Blue: ");
  Serial.println(blueValue);

  /*
  Now that you have a usable value, it's time to PWM the LED.
  */
  analogWrite(redLEDPin, redValue);
  analogWrite(greenLEDPin, greenValue);
  analogWrite(blueLEDPin, blueValue);

}

Love of meter

CÓDIGO:

/*
  Arduino Starter Kit example
 Project 3  - Love-O-Meter

 This sketch is written to accompany Project 3 in the
 Arduino Starter Kit

 Parts required:
 1 TMP36 temperature sensor
 3 red LEDs
 3 220 ohm resistors

 Created 13 September 2012
 by Scott Fitzgerald

 http://arduino.cc/starterKit

 This example code is part of the public domain
 */

// named constant for the pin the sensor is connected to
const int sensorPin = A0;
// room temperature in Celcius
const float baselineTemp = 20.0;

void setup(){
  // open a serial connection to display values
  Serial.begin(9600);
  // set the LED pins as outputs
  // the for() loop saves some extra coding
  for(int pinNumber = 2; pinNumber<5; pinNumber++){
    pinMode(pinNumber,OUTPUT);
    digitalWrite(pinNumber, LOW);
  }
}

void loop(){
  // read the value on AnalogIn pin 0
  // and store it in a variable
  int sensorVal = analogRead(sensorPin);

  // send the 10-bit sensor value out the serial port
  Serial.print("sensor Value: ");
  Serial.print(sensorVal);

  // convert the ADC reading to voltage
  float voltage = (sensorVal/1024.0) * 5.0;

  // Send the voltage level out the Serial port
  Serial.print(", Volts: ");
  Serial.print(voltage);

  // convert the voltage to temperature in degrees C
  // the sensor changes 10 mV per degree
  // the datasheet says there's a 500 mV offset
  // ((volatge - 500mV) times 100)
  Serial.print(", degrees C: ");
  float temperature = (voltage) * 100;
  Serial.println(temperature);

  // if the current temperature is lower than the baseline
  // turn off all LEDs
  if(temperature < baselineTemp){
    digitalWrite(2, LOW);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
  } // if the temperature rises 2-4 degrees, turn an LED on
  else if(temperature >= baselineTemp+2 && temperature < baselineTemp+3){
    digitalWrite(2, HIGH);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
  } // if the temperature rises 4-6 degrees, turn a second LED on
  else if(temperature >= baselineTemp+3 && temperature < baselineTemp+4){
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(4, LOW);
  } // if the temperature rises more than 6 degrees, turn all LEDs on
  else if(temperature >= baselineTemp+4){
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
  }
  delay(1);
}

Leyendo en analogico

CÓDIGO:

int ledPin = 13;
 
void setup() {
pinMode(ledPin, OUTPUT);
}
 
void loop() {
int val = analogRead(A5);
digitalWrite(ledPin, HIGH);
delay(val);
digitalWrite(ledPin, LOW);
delay(val);
}

Recibiendo del ordenador

CÓDIGO:

int ledPin=13;
int incomingByte;

void setup() {
Serial.begin(9600);
pinMode(ledPin,OUTPUT);
}
void loop() {
if(Serial.available()>0){
incomingByte=Serial.read();
if(incomingByte=='H'){
digitalWrite(ledPin, HIGH);
}
if(incomingByte=='L'){
digitalWrite(ledPin,LOW);
}
}
}

Enviando al ordenador

CÓDIGO:

void setup() {
Serial.begin(9600);
}

void loop() {
Serial.println("hello it,s me");
delay(1000);
}