Example code for the IOST Capacitive Sensing Library breakout

CapBreakoutExample

#include <CapacitiveSensor.h>

// Initialise all of our cap sensors. Each shares the
// 12 pin.

CapacitiveSensor caps[] = 
{
  CapacitiveSensor(12,2),
  CapacitiveSensor(12,3),
  CapacitiveSensor(12,4),
  CapacitiveSensor(12,5),
  CapacitiveSensor(12,6),
  CapacitiveSensor(12,7)
};

// Set a threshold value for which is used to 
// register a trigger event.

int threshold = 500;

// Set a long array to store the cap values.

long values[] = 
{
  0,0,0,0,0,0
};

// Set ref for an led that can be used to show
// that the threshold has been exceeded.

int ledPin = 13;

void setup() 
{
  // Pause to allow for boot of an xbee or BT if connected
  // delay(6000);
  
  for(int i=0; i < 6; i++)
  {
    // caps[i].set_CS_AutocaL_Millis(0xFFFFFFFF);
  }

  // Set the led pin as an output
  
  pinMode(ledPin, OUTPUT);

  // Set the led to off
  
  digitalWrite(ledPin, LOW);

  // Initialise the serial
  
   Serial.begin(9600);
}

void loop() 
{
  // Loop through the list of sensors and read the
  // value of each sensor.
  for(int i=0; i < 6; i++)
  {
    values[i] = caps[i].capacitiveSensor(30);

    // Print the value of the sensor to serial
    Serial.print(values[i]);

    // If we are at the final sensor in the list
    // do a print line, otherwise print a comma.
    if(i != 5) { Serial.print(","); }
    else { Serial.println(); }
  }  

  // Turn off the led
  digitalWrite(ledPin, LOW);

  // Loop through the list of sensor values and if
  // one or more of the values is greater than the
  // threshold re-light the led
  for(int i=0; i < 6; i++)
  {
    if(values[i] > threshold)
    {
      digitalWrite(ledPin, HIGH);
    }
  }
}