CapacitiveSensor::CapacitiveSensor(uint8_t sendPin, uint8_t receivePin)
{
// initialize this instance's variables
// Serial.begin(9600); // for debugging
error = 1;
loopTimingFactor = 310; // determined empirically - a hack
CS_Timeout_Millis = (2000 * (float)loopTimingFactor * (float)F_CPU) / 16000000;
CS_AutocaL_Millis = 20000;
// Serial.print("timwOut = ");
// Serial.println(CS_Timeout_Millis);
// get pin mapping and port for send Pin - from PinMode function in core
#ifdef NUM_DIGITAL_PINS
if (sendPin >= NUM_DIGITAL_PINS) error = -1;
if (receivePin >= NUM_DIGITAL_PINS) error = -1;
#endif
pinMode(sendPin, OUTPUT); // sendpin to OUTPUT
pinMode(receivePin, INPUT); // receivePin to INPUT
digitalWrite(sendPin, LOW);
sBit = PIN_TO_BITMASK(sendPin); // get send pin's ports and bitmask
sReg = PIN_TO_BASEREG(sendPin); // get pointer to output register
rBit = PIN_TO_BITMASK(receivePin); // get receive pin's ports and bitmask
rReg = PIN_TO_BASEREG(receivePin);
// get pin mapping and port for receive Pin - from digital pin functions in Wiring.c
leastTotal = 0x0FFFFFFFL; // input large value for autocalibrate begin
lastCal = millis(); // set millis for start
}
void initialize_button(uint8_t pin1, int8_t pin2)
{
// pinMode(pin1, INPUT);
// digitalWrite(pin1, HIGH); // enable pullup
pinMode(pin1, INPUT_PULLUP);
button1.pin = pin1;
button1.reg = PIN_TO_INPUT_REG(pin1);
button1.bitmask = PIN_TO_BITMASK(pin1);
button_bit[0] = PIN_TO_BITMASK(pin1);
if (pin2 != -1) {
// pinMode(pin2, INPUT);
// digitalWrite(pin2, HIGH); // enable pullup
pinMode(pin2, INPUT_PULLUP);
button2.pin = pin2;
button2.reg = PIN_TO_INPUT_REG(pin2);
button2.bitmask = PIN_TO_BITMASK(pin2);
button_bit[1] = PIN_TO_BITMASK(pin2);
button_count = 2;
}
}