#define MIDI_CHANNEL 1
#include <spi4teensy3.h>
#include <EEPROM.h>
#include <Haarnet.h>

int min_c = 9999;
int max_c = 0;

float alpha = 0.2;
int prev = 0;

float freq = 125;

void setup() {
  Serial.begin(57600);

  Music.init();
  Music.setFrequency(freq);

  prev = touchRead(A1);
}

int filter(int n) {
  prev = (int) (alpha * n + (1.0 - alpha) * prev);
  return prev;
}

void loop() {
  // put your main code here, to run repeatedly:
  
  int d = touchRead(A1);
  int f = filter(d);
  

  
  if(d < min_c) min_c = d;
  if(d > max_c) max_c = d;
  int e = map(d, min_c, max_c, 0, 100);
  Music.setDetune(e);
  
  Serial.print(d);Serial.print(",");Serial.println(f);
  delay(100);

}