title: Send finger.fingerID to Bluetooth
body: <p>I'm able to send some characters in blue tooth to my android device.<br>
  But after scanning my finger and send the finger.fingerID value to android device,<br>
  Only a special character was sent.<br>
  So it came to me that the value is Integer and tried to convert it to character but still getting some error.<br>
  When I run my code here, I immediately getting back to void setup();</p>
  
  <pre><code>int getFingerprintIDez() {
    uint8_t p = finger.getImage();
    if (p != FINGERPRINT_OK)  return -1;
  
    p = finger.image2Tz();
    if (p != FINGERPRINT_OK)  return -1;
  
    p = finger.fingerFastSearch();
    if (p != FINGERPRINT_OK)  return -1;
  
    // found a match!
  
  
    Serial.print("Found ID #"); Serial.print(finger.fingerID); 
    Serial.print(" with confidence of "); Serial.println(finger.confidence);  
  
  
    String toStr;
    char toChar[2];
    toStr=String(finger.fingerID);  
    toStr.toCharArray(toChar, toStr.length());
    BTSerial.write(toChar);
    Serial.print(toChar); 
    return finger.fingerID; 
  }
  </code></pre>