Using a Captivate Touch Sensor as a button to control a servo motor.

hi, i'm trying mpr121 arduino shield button if push sends power servo motor. want servo motor go , forth (sweep preset). i've tried using "if" , "then" statements. it's not working, shield reading fingers , showing output on serial monitor, it's not moving servo motor. help! here's code:

#include <wire.h>
#include "adafruit_mpr121.h>



adafruit_mpr121 cap = adafruit_mpr121();


uint16_t lasttouched = 0;
uint16_t currtouched = 0;

void setup() {
  pinmode(led_builtin, output);
  while (!serial);     
  serial.begin(9600);
  serial.println("adafruit mpr121 capacitive touch sensor test");
 
 
  if (!cap.begin(0x5a)) {
    serial.println("mpr121 not found, check wiring?");
    while (1);
  }
  serial.println("mpr121 found!");
}

void loop() {
 
  currtouched = cap.touched();
 
  (uint8_t i=0; i<12; i++) {
 
    if ((currtouched & _bv(i)) && !(lasttouched & _bv(i)) ) {
      serial.print(i); serial.println(" touched");
       digitalwrite(led_builtin, high);   // turn led on (high voltage level)
  delay(1000);                       // wait second
  digitalwrite(led_builtin, low);    // turn led off making voltage low
  delay(1000); 
    }
   
    if (!(currtouched & _bv(i)) && (lasttouched & _bv(i)) ) {
      serial.print(i); serial.println(" released");
    }
  }

 
  lasttouched = currtouched;


  return;
 
 
  serial.print("\t\t\t\t\t\t\t\t\t\t\t\t\t 0x"); serial.println(cap.touched(), hex);
  serial.print("filt: ");
  (uint8_t i=0; i<12; i++) {
    serial.print(cap.filtereddata(i)); serial.print("\t");
  }
  serial.println();
  serial.print("base: ");
  (uint8_t i=0; i<12; i++) {
    serial.print(cap.baselinedata(i)); serial.print("\t");
  }
  serial.println();
 
 
  delay(100);
}

code in tags:

code: [select]

#include <wire.h>
#include "adafruit_mpr121.h>



adafruit_mpr121 cap = adafruit_mpr121();


uint16_t lasttouched = 0;
uint16_t currtouched = 0;

void setup()
{
  pinmode(led_builtin, output);
  while (!serial);
  serial.begin(9600);
  serial.println("adafruit mpr121 capacitive touch sensor test");


  if (!cap.begin(0x5a))
  {
    serial.println("mpr121 not found, check wiring ? ");
    while (1);
  }
  serial.println("mpr121 found!");
}

void loop()
{

  currtouched = cap.touched();

  (uint8_t i=0; i<12; i++)
  {

    if ((currtouched & _bv(i)) && !(lasttouched & _bv(i)) )
    {
      serial.print(i); serial.println(" touched");
      digitalwrite(led_builtin, high);   // turn led on (high voltage level)
      delay(1000);                       // wait second
      digitalwrite(led_builtin, low);    // turn led off making voltage low
      delay(1000);
    }

    if (!(currtouched & _bv(i)) && (lasttouched & _bv(i)) )
    {
      serial.print(i); serial.println(" released");
    }
  }


  lasttouched = currtouched;


  return;


  serial.print("\t\t\t\t\t\t\t\t\t\t\t\t\t 0x"); serial.println(cap.touched(), hex);
  serial.print("filt : ");
  (uint8_t i=0; i<12; i++)
  {
    serial.print(cap.filtereddata(i)); serial.print("\t");
  }
  serial.println();
  serial.print("base : ");
  (uint8_t i=0; i<12; i++)
  {
    serial.print(cap.baselinedata(i)); serial.print("\t");
  }
  serial.println();


  delay(100);
}



tips:
1.) rid of "while(!serial);"
2.) rid of "return;"

more come.

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