ArduinoのanalogINをBLEで使う

analogin.c

#include <CurieBLE.h>

const int ledPin = 13; // set ledPin to use on-board LED
BLEPeripheral blePeripheral; // create peripheral instance

BLEService alcoholService("29B10000-E8F2-537E-4F6C-D104768A1214"); // create service
BLEShortCharacteristic alcoholChar("29B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite | BLENotify);

const int termLedPin = 13;
const int alcoholSensorPin = 0;

void setup() {
  Serial.begin(9600);

  while (!Serial) {}
  
  Serial.println("start setup");
    
  pinMode(ledPin, OUTPUT); // use the LED on pin 13 as an output
  
  blePeripheral.setLocalName("LED_ALC");
  blePeripheral.setAdvertisedServiceUuid(alcoholService.uuid());
  blePeripheral.addAttribute(alcoholService);
  blePeripheral.addAttribute(alcoholChar);

  blePeripheral.setEventHandler(BLEConnected, blePeripheralConnectHandler);
  blePeripheral.setEventHandler(BLEDisconnected, blePeripheralDisconnectHandler);

  alcoholChar.setEventHandler(BLEWritten, alcoholCharacteristicWritten);
  alcoholChar.setValue(0);

  blePeripheral.begin();
  Serial.println(("Bluetooth device active, waiting for connections..."));
}

void loop() {
  blePeripheral.poll();
}

void blePeripheralConnectHandler(BLECentral& central) {
  // central connected event handler
  Serial.print("Connected event, central: ");
  Serial.println(central.address());
}

void blePeripheralDisconnectHandler(BLECentral& central) {
  // central disconnected event handler
  Serial.print("Disconnected event, central: ");
  Serial.println(central.address());
}


void alcoholCharacteristicWritten(BLECentral& central, BLECharacteristic& characteristic) {
  digitalWrite(termLedPin, HIGH);

  int values[10];
  int arrayIndex = 0;
  int tmpValue=0;
  for(int i = 0; i < 10; i++) {
    int value = analogRead(alcoholSensorPin);
    Serial.println(value);
    if (i==0){
      values[arrayIndex] = value;
      arrayIndex++;
    } else if(tmpValue != value) {
      values[arrayIndex] = value;
      arrayIndex++;
    }
    tmpValue = value;
    delay(500);
  }

  qsort(values, 10, sizeof(int), comp); 
  
  int uniqValues[arrayIndex];
  int index=0;
  for(int i=9; i>(9-arrayIndex); i--){
    uniqValues[index] = values[i];
    index++;
  }
  
  digitalWrite(termLedPin, LOW);

  int memValue = 1024 - uniqValues[arrayIndex/2];
  alcoholChar.setValue(memValue);  
  Serial.print("=============");
  Serial.print(memValue);
  Serial.println("=============");
}
int comp( const void *c1, const void *c2 )
{
  int tmp1 = *(int *)c1;
  int tmp2 = *(int *)c2;

  if( tmp1 < tmp2 )  return -1;
  if( tmp1 == tmp2 ) return  0;
  if( tmp1 > tmp2 )  return  1;
}