           // check status
           myCAM.rdSensorReg16_8(0x3029, &regX);
           if (regX == 0x10) {
-            Serial.println("ACK CMD Auto focus completed"); break;
+            Serial.println("ACK CMD Auto focus completed END"); break;
           } // focus completed
           else {
-            Serial.println("ACK CMD Auto focusing ..."); delay(1000);
+            Serial.println("ACK CMD Auto focusing ...END"); delay(1000);
           }
         }
 

    {
      case 0:
        myCAM.OV5640_set_JPEG_size(OV5640_320x240); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_320x240"));
        temp = 0xff;
        break;
      case 1:
        myCAM.OV5640_set_JPEG_size(OV5640_352x288); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_352x288"));
        temp = 0xff;
        break;
      case 2:
        myCAM.OV5640_set_JPEG_size(OV5640_640x480); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_640x480"));

        temp = 0xff;
        break;
      case 3:
        myCAM.OV5640_set_JPEG_size(OV5640_800x480); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_800x480"));

        temp = 0xff;
        break;
      case 4:
        myCAM.OV5640_set_JPEG_size(OV5640_1024x768); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_1024x768"));
        temp = 0xff;
        break;
      case 5:
        myCAM.OV5640_set_JPEG_size(OV5640_1280x960); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_1280x960"));
        temp = 0xff;
        break;
      case 6:
        myCAM.OV5640_set_JPEG_size(OV5640_1600x1200); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_1600x1200"));
        temp = 0xff;
        break;
      case 7:
        myCAM.OV5640_set_JPEG_size(OV5640_2048x1536); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_2048x1536"));
        temp = 0xff;
        break;
      case 8:
        myCAM.OV5640_set_JPEG_size(OV5640_2592x1944); delay(1000);
        Serial.println(F("ACK CMD switch to OV5640_2592x1944"));
        temp = 0xff;
        break;
      case 0x10:
        mode = 1;
        start_capture = 1;
        Serial.println(F("ACK CMD CAM start single shoot."));
        break;
      case 0x11:
        myCAM.set_format(JPEG);

      case 0x20:
        mode = 2;
        start_capture = 2;
        Serial.println(F("ACK CMD CAM start video streaming.END"));
        break;
      case 0x30:
        mode = 3;
        temp = 0xff;
        start_capture = 3;
        Serial.println(F("ACK CMD CAM start single shoot.END"));
        break;
      case 0x31:
        temp = 0xff;
