Hello,
My Arduino UNO it having a strange behaviour only when running the following code. I've made 5-Key Capacitive Sensor Key board with fluctuating sound, it's quite simple but at one point it seems as if it went crazy and starts playing without touching the keys. Indeed is really sensitive, because I have to be aware that anything istouching the shield or the key, even my woooden table. I have seen some proyects in which they have something like an "autocalibrate" or so. Could be that the problem? I copy the code and upload the fritzing image.
#include <CapacitiveSensor.h>
#include <pitches.h> //aunque estan incluidos supuestamente en la libreria, los pongo entre <> en vez de entre "" porque mi arduino no se pasa por el arco del triunfo las normas de convivencia!!
/*
* CapitiveSense Library Demo Sketch MODIFICADO EL ORIGINAL DE *Paul Badger 2008
* Uses a high value resistor e.g. 10M between send pin and receive pin (COMO NO TENGO RESISTENCIA TAN GRANDE Y ABAJO INCA QUE LOS VALORES PUEDEN VARIAR ENTRE 50K y 50M.. HE PUESTO EL POTENCIOMETRO DE 100K Y A CORRER S Resistor effects sensitivity, experiment with values, 50K - 50M. Larger resistor values yield larger sensor values.
* Receive pin is the sensor pin - try different amounts of foil/metal on this pin
*/
/*************************************************
* Public Constants
*************************************************/
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#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
CapacitiveSensor cs_4_2 = CapacitiveSensor(4,2); // 100k potenciometro entre pin 4 y 2, lata u objeto metalico en el pin 4.
CapacitiveSensor cs_4_7 = CapacitiveSensor(4,7);
CapacitiveSensor cs_4_8 = CapacitiveSensor(4,8);
CapacitiveSensor cs_4_12 = CapacitiveSensor(4,12);
CapacitiveSensor cs_4_13 = CapacitiveSensor(4,13);
void setup()
{
pinMode(11,OUTPUT);
cs_4_2.set_CS_AutocaL_Millis(0xFFFFFFFF); // turn off autocalibrate on channel 1 - just as an example, ni idea de que es esto
cs_4_7.set_CS_AutocaL_Millis(0xFFFFFFFF);
cs_4_8.set_CS_AutocaL_Millis(0xFFFFFFFF);
cs_4_12.set_CS_AutocaL_Millis(0xFFFFFFFF);
cs_4_13.set_CS_AutocaL_Millis(0xFFFFFFFF);
Serial.begin(9600); //esto es para ver la variacion de la capacitancia
}
void loop()
{
long start = millis();
long total2 = cs_4_2.capacitiveSensor(30);
long total7 = cs_4_7.capacitiveSensor(30);
long total8 = cs_4_8.capacitiveSensor(30);
long total12 = cs_4_12.capacitiveSensor(30);
long total13 = cs_4_13.capacitiveSensor(30);
int frecuencia2 = NOTE_B1;
int frecuencia7 = NOTE_B2;
int frecuencia8 = NOTE_B3;
int frecuencia12 = NOTE_B4;
int frecuencia13 = NOTE_B5;
Serial.print(millis() - start); // check on performance in milliseconds
Serial.print("\t"); // tab character for debug windown spacing
Serial.print(total2); // print sensor output 2
Serial.print("\t");
Serial.print(total7); // print sensor output pin 7
Serial.print("\t");
Serial.print(total8); // print sensor output pin 8
Serial.print("\t");
Serial.print(total12); // print sensor output pin 12
Serial.print("\t");
Serial.println(total13); // print sensor output pin 13
Serial.print("\t");
delay(10); // arbitrary delay to limit data to serial port
while (((total2 = cs_4_2.capacitiveSensor(30)) > 680) && (frecuencia2 < NOTE_B4))
{
frecuencia2 += 35;
tone(11, frecuencia2, 100); // pin salida audio, nota, duracionon
}
while (((total7 = cs_4_7.capacitiveSensor(30)) > 200) && (frecuencia7 < NOTE_B5))
{
frecuencia7 += 35;
tone(11, frecuencia7, 100); // pin salida audio, nota, duracionon
}
while (((total8 = cs_4_8.capacitiveSensor(30)) > 200) && (frecuencia8 < NOTE_B6))
{
frecuencia8 += 35;
tone(11, frecuencia8, 100); // pin salida audio, nota, duracionon
}
while (((total12 = cs_4_12.capacitiveSensor(30)) > 200) && (frecuencia12 < NOTE_B7))
{
frecuencia12 += 35;
tone(11, frecuencia12, 100); // pin salida audio, nota, duracionon
}
while (((total13 = cs_4_13.capacitiveSensor(30)) > 200) && (frecuencia13 < NOTE_DS8))
{
frecuencia13 += 35;
tone(11, frecuencia13, 100); // pin salida audio, nota, duracionon
}
noTone;
delay(100);
}
Thanks in advance,
Pulpalomita
