File content as of revision 2:a4ebeb3ba49c:

#ifndef RESISTIVE_TOUCH_CONTROLLER_HPP
#define RESISTIVE_TOUCH_CONTROLLER_HPP

//-- Macros for calibration function
#define X_T1 t[0][0]
#define X_T2 t[1][0]
#define X_T3 t[2][0]

#define Y_T1 t[0][1]
#define Y_T2 t[1][1]
#define Y_T3 t[2][1]

#define X_D1 d[0][0]
#define X_D2 d[1][0]
#define X_D3 d[2][0]

#define Y_D1 d[0][1]
#define Y_D2 d[1][1]
#define Y_D3 d[2][1]

#include "mbed.h"

class ResistiveTouchController
{
public:
  ResistiveTouchController(PinName ur, PinName lr, PinName s, PinName ul, PinName ll, int num_of_samples = 5, float settle =  0.002);

  int TouchDetected();
  void Measure();

  float RawX();
  float RawY();

  float X();
  float Y();

  void Calibrate(float t[3][2], float d[3][2]);

  void SetSettleTime(float settle);

private:
  DigitalInOut _UR;
  DigitalInOut _LR;
  PinName _S;
  DigitalInOut _UL;
  DigitalInOut _LL;
  Timer _delayTimer;

  float _settle;

  static const char DETECT_MODE = 1;
  static const char X_MODE = 2;
  static const char Y_MODE = 3;

  float A,B,C,D,E,F;

  float _xt, _yt;

  int _samples;

  void ConfigPins(char mode);
  float MeasureS();
  void Delay(float time);
};
#endif