public:

Adafruit_FreeTouch(int p = 0, oversample_t f = OVERSAMPLE_4, series_resistor_t r = RESISTOR_0, freq_mode_t fh = FREQ_MODE_NONE);

bool begin(void);

uint16_t measure(void);

uint16_t measureRaw(void);

private:

void ptcInitSettings(void);

void ptcConfigIOpin(void);

uint16_t startPtcAcquire(void);

int getYLine(void);

void selectYLine(void);

void setOversampling(oversample_t lvl);

void setSeriesResistor(series_resistor_t res);

void setFreqHopping(freq_mode_t fh, freq_hop_t hops = FREQ_HOP_1);

void setCompCap(uint16_t cc);

void setIntCap(uint8_t ic);

void snapshotRegsAndPrint(uint32_t base, uint8_t numregs);

void printHex(uint8_t h, boolean newline);

void printPTCregs(uint32_t base, uint8_t *regs, uint8_t num);

private:

int pin; // arduino pin #

struct adafruit_ptc_config config;