Onnowpurbo: New page: Sumber: https://www.arduino.cc/en/Tutorial/tonePitchFollower This example shows how to use the tone() command to generate a pitch that follows the values of an analog input. Using a phot...

2015-12-05T09:39:21Z

New page: Sumber: https://www.arduino.cc/en/Tutorial/tonePitchFollower This example shows how to use the tone() command to generate a pitch that follows the values of an analog input. Using a phot...

New page

Sumber: https://www.arduino.cc/en/Tutorial/tonePitchFollower

This example shows how to use the tone() command to generate a pitch that follows the values of an analog input. Using a photoresistor your Arduino or Genuino board becomes a simplified light theremin.

==Hardware Required==

* Arduino or Genuino board
* 8 ohm speaker
* photoresistor
* 4.7K ohm resistor
* 100 ohm resistor
* hook-up wires
* breadboard

==Rangkaian==

[[Image:Arduino speaker photocell bb.png|center|200px|thumb]]

[[Image:Arduino speaker photocell schem.png|center|200px|thumb]]

==Code==

/*
Pitch follower

Plays a pitch that changes based on a changing analog input

circuit:
* 8-ohm speaker on digital pin 9
* photoresistor on analog 0 to 5V
* 4.7K resistor on analog 0 to ground

created 21 Jan 2010
modified 31 May 2012
by Tom Igoe, with suggestion from Michael Flynn

This example code is in the public domain.

http://www.arduino.cc/en/Tutorial/Tone2

*/

void setup() {
// initialize serial communications (for debugging only):
Serial.begin(9600);
}

void loop() {
// read the sensor:
int sensorReading = analogRead(A0);
// print the sensor reading so you know its range
Serial.println(sensorReading);
// map the analog input range (in this case, 400 - 1000 from the photoresistor)
// to the output pitch range (120 - 1500Hz)
// change the minimum and maximum input numbers below
// depending on the range your sensor's giving:
int thisPitch = map(sensorReading, 400, 1000, 120, 1500);

// play the pitch:
tone(9, thisPitch, 10);
delay(1); // delay in between reads for stability
}

==Referensi==

* https://www.arduino.cc/en/Tutorial/tonePitchFollower

Ardiuno: Tone Pitch Follower - Revision history

Onnowpurbo: New page: Sumber: https://www.arduino.cc/en/Tutorial/tonePitchFollower This example shows how to use the tone() command to generate a pitch that follows the values of an analog input. Using a phot...