Arduino piano DIY | Conductive paint & Capacitive sensor

  

 Requirement

               1.   Arduino Uno

           2.   buzzer

           3.   8 x 1M ohms

           4.   8 x Banana

           5.   Conductive Paint link

           6.   Breadboard

           7.   Jumper wires

 Circuit Diagram

Code

#include <CapacitiveSensor.h>

#define buzzer 11

// Set the Send Pin & Receive Pin.

CapacitiveSensor   cs_12_3 = CapacitiveSensor(12,3);       

CapacitiveSensor   cs_12_4 = CapacitiveSensor(12,4);        

CapacitiveSensor   cs_12_5 = CapacitiveSensor(12,5);    

CapacitiveSensor   cs_12_6 = CapacitiveSensor(12,6);    

CapacitiveSensor   cs_12_7 = CapacitiveSensor(12,7);     

CapacitiveSensor   cs_12_8 = CapacitiveSensor(12,8);        

CapacitiveSensor   cs_12_9 = CapacitiveSensor(12,9); 

CapacitiveSensor   cs_12_10 = CapacitiveSensor(12,10);    

void setup()                   

{

  // turn off autocalibrate on channel 1 - just as an example

  cs_12_3.set_CS_AutocaL_Millis(0xFFFFFFFF); 

  cs_12_4.set_CS_AutocaL_Millis(0xFFFFFFFF);

  cs_12_5.set_CS_AutocaL_Millis(0xFFFFFFFF);

  cs_12_6.set_CS_AutocaL_Millis(0xFFFFFFFF);

  cs_12_7.set_CS_AutocaL_Millis(0xFFFFFFFF);

  cs_12_8.set_CS_AutocaL_Millis(0xFFFFFFFF);

  cs_12_9.set_CS_AutocaL_Millis(0xFFFFFFFF);    

  cs_12_10.set_CS_AutocaL_Millis(0xFFFFFFFF);

}

void loop()                   

{

  // Set the sensitivity of the sensors.

  long touch1 =  cs_12_3.capacitiveSensor(1000);

  long touch2 =  cs_12_4.capacitiveSensor(1000);

  long touch3 =  cs_12_5.capacitiveSensor(1000);

  long touch4 =  cs_12_6.capacitiveSensor(1000);

  long touch5 =  cs_12_7.capacitiveSensor(1000);

  long touch6 =  cs_12_8.capacitiveSensor(1000);

  long touch7 =  cs_12_9.capacitiveSensor(1000);

  long touch8 =  cs_12_10.capacitiveSensor(1000);

 

  // When we touched the sensor, the buzzer will produce a tone.

  if (touch1 > 1000){

    tone(buzzer,400);

    } 

  if (touch2 > 1000){

    tone(buzzer,270);

    } 

  if (touch3 > 1000){

    tone(buzzer,650);

  }

  if (touch4 > 1000) {

    tone(buzzer,900);

  }

  if (touch5 > 1000){

    tone(buzzer,1100);

  }

  if (touch6 > 1000){

    tone(buzzer,1300);

  }

  if (touch7 > 1000){

    tone(buzzer,1670);

  }

  if (touch8 > 1000){

    tone(buzzer,2000);

  }

  // When we didn't touch it, no tone is produced.

  if (touch1<=1000  &  touch2<=1000  &  touch3<=1000 & touch4<=1000  &  touch5<=1000  &  touch6<=1000 &  touch7<=1000 &  touch8<=1000)

    noTone(buzzer);

  delay(10); 

 }

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