Several problems with Mac-Arduino-IDE connecting to UNO (--> Serial Port?!?)

Hello,

I have several problems when connecting Arduino-boards with the Arduino-IDE on my Mac.

Hardware:

  • Apple MacBook Pro 2015
  • Arduino UNO board, but same problems with other Arduino boards
  • Interfaces reported by the IDE: Bluetooth, SerialPort and USB

Software:

  • Arduino-IDE 1.8.13
  • Easiest sketch possible:
    void setup() {// put your setup code here, to run once:
    }
    void loop() {// put your main code here, to run repeatedly:
    }

Description of the problem:

  • the correct Arduino board and the correct port are chosen
  • sometimes the first upload is successful. But any attempt to upload this sketch one more time leads to a whole bunch of different error messages, just like:
  1. "Beim Hochladen des Sketches ist ein Fehler aufgetreten (error when uploading the sketch)
    avrdude: ser_open(): can't open device "/dev/cu.usbmodem14201": Resource busy"

  2. "avrdude: ser_open(): can't open device "/dev/cu.usbmodem14101": Resource busy"

  3. "processing.app.SerialException: Fehler beim Öffnen des seriellen Ports "/dev/cu.usbmodem14101".
    at processing.app.Serial.(Serial.java:152)
    at processing.app.Serial.(Serial.java:82)
    at processing.app.SerialMonitor$2.(SerialMonitor.java:132)
    at processing.app.SerialMonitor.open(SerialMonitor.java:132)
    at processing.app.AbstractMonitor.resume(AbstractMonitor.java:132)
    at processing.app.Editor.resumeOrCloseSerialMonitor(Editor.java:2120)
    at processing.app.Editor.access$1300(Editor.java:117)
    at processing.app.Editor$UploadHandler.run(Editor.java:2089)
    at java.lang.Thread.run(Thread.java:748)
    Caused by: jssc.SerialPortException: Port name - /dev/cu.usbmodem14101; Method name - openPort(); Exception type - Port busy.
    at jssc.SerialPort.openPort(SerialPort.java:164)
    at processing.app.Serial.(Serial.java:141)
    ... 8 more

  4. when I want to open the Serial Monitor: 5. Fehler beim Öffnen des seriellen Ports "/dev/cu.usbmodem14101" (Port busy) (Error when opening serial port "/dev/cu.usbmodem14201". (Port busy))

  5. "avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
    avrdude: stk500_recv(): programmer is not responding
    avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
    Problem beim Hochladen auf das Board. Hilfestellung dazu unter http://www.arduino.cc/en/Guide/Troubleshooting#upload."

I'm about to give up. But maybe somebody can help me ... Or give me a link to a solution?! A problem about / with the Serial Port; there's no other connected hardware running on my Mac?!

Thanks in advance,

dibujo

1 Like

Hello Admins,

please remove this post. I can't delete it.

I have new information about my problem and will follow this path,

Best wishes

dibujo

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