How to use COM.X Sigfox with M5Stack and M5Core2



  • Hello.
    I purchased M5stack Basic and Core2.
    I want to connect COM.X Sigfox to this and communicate with sigfox.
    So I installed the Arduino IDE, USB serial driver, board definitions and libraries on my PC. And
    I tried to write a sample sketch to get ID / PAC information to M5stack.

    M5stack Basic was successful.

    The following error message was displayed on M5stack Cors2.

    File "esptool.py", line 3682, in <module>

    Serial port COM3

    File "esptool.py", line 3675, in _main

    File "esptool.py", line 3329, in main

    File "esptool.py", line 263, in init

    File "site-packages \ serial \ __ init__.py", line 88, in serial_for_url

    File "site-packages \ serial \ serialwin32.py", line 62, in open

    serial.serialutil.SerialException: could not open port'COM3': WindowsError (2,'\ x8ew \ x92 \ xe8 \ x82 \ xb3 \ x82 \ xea \ x82 \ xbd \ x83t \ x83 @ \ x83C \ x83 \ x8b \ x82 \ xaa \ x8c \ xa9 \ x82 \ xc2 \ x82 \ xa9 \ x82 \ xe8 \ x82 \ xdc \ x82 \ xb9 \ x82 \ xf1 \ x81B')

    Failed to execute script esptool

    When Basic is connected to the PC, it is connected to com3 in Device Manager, but when Core2 is connected, it is com7. Something is wrong.

    What should I do? please tell me. Thank you.


  • Global Moderator

    Hi @takero I've replied to you by email regarding this issue in order to conduct some extra tests :)