Datasheet

// CS pin is used for software or hardware SPI

#define CAP1188_CS 10

// These are defined for software SPI, for hardware SPI, check your

// board's SPI pins in the Arduino documentation

#define CAP1188_MOSI 11

#define CAP1188_MISO 12

#define CAP1188_CLK 13

volatile byte interrupt = 0;

// For I2C, connect SDA to your Arduino's SDA pin, SCL to SCL pin

// On UNO/Duemilanove/etc, SDA == Analog 4, SCL == Analog 5

// On Leonardo/Micro, SDA == Digital 2, SCL == Digital 3

// On Mega/ADK/Due, SDA == Digital 20, SCL == Digital 21

// Use I2C, no reset pin!

// Adafruit_CAP1188 cap = Adafruit_CAP1188();

// Or...Use I2C, with reset pin

//Adafruit_CAP1188 cap = Adafruit_CAP1188(CAP1188_RESET);

// Or... Hardware SPI, CS pin & reset pin

Adafruit_CAP1188 cap = Adafruit_CAP1188(CAP1188_CS, CAP1188_RESET);

// Or.. Software SPI: clock, miso, mosi, cs, reset

//Adafruit_CAP1188 cap = Adafruit_CAP1188(CAP1188_CLK, CAP1188_MISO, CAP1188_MOSI, CAP1188_CS, CAP1188_RESET);

void setup() {

Serial.begin(9600);

Serial.println("CAP1188 test!");

pinMode(3,INPUT);

// Raise SPI slave select (SS) pins

// Communication begins when you drop the individual select signals to LOW

digitalWrite(10,HIGH);

// Initialize the sensor, if using i2c you can pass in the i2c address

// if (!cap.begin(0x28)) {

if (!cap.begin()) {

Serial.println("CAP1188 not found");

while (1);

}

Serial.println("CAP1188 found!");

pinMode(3, INPUT);