Introduction: Arduino Piano With Piezoelectric Sensors

Picture of Arduino Piano With Piezoelectric Sensors

Greetings from Fablab Jubail,Saudi arabia. We came in Peace

This instructable will cover how to make an Arduino based piano made by connecting 5 of piezoelectric pressure sensors to the Arduino and a simple sound speaker, each piezo sensor is programmed to send a specified musical tone the speaker is going recognize and turn on after you press the piezoelectric sensor.

Step 1: Components

Picture of Components
  • 6 Piezoelectric transducer
  • Sound speaker
  • Breadboard
  • Arduino Uno
  • Jumpers
  • 6 Resistors

Step 2: Connection

Picture of Connection
  • Each Piezo Transducer red wire should be connected through a resistor to GND and black wire is connected to Pin here we used A0, A1, A2, A3, A4, A5
  • Sound speaker red wire should be connected to Pin 8 and black to GND

Step 3:

First
you need to open a New Tab and name the file " pitches.h " then insert the tones

#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978

After that get back to your sketch and add your code

#include "pitches.h"
int analogpin[6]={A0,A1,A2,A3,A4,A5};
int buzpin=8;
int threshold=20;
void setup()
{
Serial.begin(9600);
pinMode(8,OUTPUT);
}
void loop()
{
if(analogRead(analogpin[0])>threshold)
{
Serial.println("A0");
tone(8, NOTE_B4,1000/4);
}
if (analogRead(analogpin[1])>threshold)
{
Serial.println("A1");
tone(8, NOTE_D4,1000/4);
digitalWrite(8,HIGH);
}
if (analogRead(analogpin[2])>threshold)
{
Serial.println("A2");
tone(8, NOTE_C4,1000/4);
}
if (analogRead(analogpin[3])>threshold)
{
Serial.println("A3");
tone(8, NOTE_G4,1000/4);
}
if (analogRead(analogpin[4])>threshold)
{
Serial.println("A4");
tone(8, NOTE_G3,1000/4);
}
if (analogRead(analogpin[5])>threshold)
{
Serial.println("A5");
tone(8, NOTE_D3,1000/4);
}
}

Step 4: Conclusion

as defined in Wikipedia, A Piezo Sensors or A piezoelectric sensor is a device that uses the piezoelectric
effect, to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. The prefix piezo- is Greek for 'press' or 'squeeze'.

so we are using that to detect when you press each pad and so the Arduino would decide which tone to play , you can play around with this idea to develop a full blown organ or do something else more productive if you are into that kind of stuff!!

Peace out Makers

Comments

pan2ja (author)2016-08-23

Awesome.. has been looking for this kind of thing. I tend to build this to play it as a e-drum for rockband / guitar hero drum style.

Syukron from Indonesia.

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