tarifa Posted September 13, 2019 Share Posted September 13, 2019 dear community issue: unable to flash micropython to esp 32: open serial error, please try again. hope to connect internet and try again. pretty new to micropython - want to flash micropython to esp 32 ( resp 8266) board. cf this docs: https://maker.pro/esp8266/tutorial/using-micropython-on-an-esp8266-with-upycraft Quote getting this errors all the time. open serial error, please try again. hope to connect internet and try again. current version only open py txt json ini file. hope to connect internet and try again. hope to connect internet and try again. Expand any idea; many thanks for any and all help in advance. Link to comment https://www.neowin.net/forum/topic/1387023-unable-to-flash-micropython-to-esp-32-open-serial-error/ Share on other sites More sharing options...
0 tarifa Posted September 13, 2019 Author Share Posted September 13, 2019 i run Win 7 the hardware: a. Joy-IT-Node MCU ESP8266 .. and besides that i also tried it with the following b. ESP32-T Development Board CP2102 mit Espressif ESP-WROOM-32 IoT WLAN & BLE Modul i have installed the > CP210x_Universal_Windows_Driver.zip by the way: i could try to do all that on a linux machine. Link to comment https://www.neowin.net/forum/topic/1387023-unable-to-flash-micropython-to-esp-32-open-serial-error/#findComment-598482528 Share on other sites More sharing options...
0 tarifa Posted September 16, 2019 Author Share Posted September 16, 2019 (edited) dear Pythonists, here more insights: issue: unable to flash micropython to esp 32: open serial error, please try again. hope to connect internet and try again. pretty new to micropython - want to flash micropython to esp 32 ( resp 8266) board. cf this docs: https://maker.pro/esp8266/tutorial/using-micropython-on-an-esp8266-with-upycraft getting this errors all the time. Quote open serial error, please try again. hope to connect internet and try again. current version only open py txt json ini file. hope to connect internet and try again. hope to connect internet and try again. Expand any idea; many thanks for any and all help in advance. i e . - if we plug the USB-cable to the port the icon in the windows device manager appears and - if we unplug it dissaperars well we allready checked following: When the ESP8266 or ESP32 is plugged in, please in the windows device manage we looked, which COM devices are registered. The one for the ESP should disappear if we unplug it. This works well any further ideas of what can happen / what we can do now? BTW;: we downloaded the esp-tool and tried to get the job done with this tool - but it did not start to work any ideas on that process? which procedure would you suggest to follow - which path to follow to get the esp flashed with the Micropython!? we look forward to hear from you again regards update; thanks - took this tool - here https://github.com/espressif/esptool Quote It works on Windows, Mac OS X, and Linux. For the official documentation, you can visit the esptool.py GitHub page. Finding the Serial Port Name Connect your board to your computer. Open the Arduino IDE. Go to Tools > Port. Save your ESP8266 serial port name (in our case it's COM4) Close your Arduino IDE software. Expand cf: https://randomnerdtutorials.com/flashing-micropython-firmware-esptool-py-esp32-esp8266/ Quote Installing esptool.py in your computer To work with esptool.py, you’ll need either Python 2.7, Python 3.4 or a newer Python installation on your system. We recommend using Python 3.7.X, so go to Python’s website and install it in your computer. With Python 3 installed, open a Terminal window and install the latest stable esptool.py release with pip: pip install esptool Expand Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. Alle Rechte vorbehalten. C:\Users\Kasper>pip install esptool Collecting esptool Downloading https://files.pythonhosted.org/packages/6c/bf/578443af2270ebeff78f dfd30cef3a02433cc63b34a912936653a48526dd/esptool-2.7.tar.gz (83kB) 100% |████████████████████████████████| 92kB 1.7MB/s Collecting pyserial>=3.0 (from esptool) Downloading https://files.pythonhosted.org/packages/0d/e4/2a744dd9e3be04a0c090 7414e2a01a7c88bb3915cbe3c8cc06e209f59c30/pyserial-3.4-py2.py3-none-any.whl (193k B) 100% |████████████████████████████████| 194kB 4.3MB/s Collecting pyaes (from esptool) Downloading https://files.pythonhosted.org/packages/44/66/2c17bae31c9066137957 11fc78045c285048168919ace2220daa372c7d72/pyaes-1.6.1.tar.gz Collecting ecdsa (from esptool) Downloading https://files.pythonhosted.org/packages/23/a8/8aa68e70959e1287da91 54e5164bb8bd5dd7025e41ae54e8d177b8d165c9/ecdsa-0.13.2-py2.py3-none-any.whl (59kB ) 100% |████████████████████████████████| 61kB 7.7MB/s Installing collected packages: pyserial, pyaes, ecdsa, esptool Could not install packages due to an EnvironmentError: [WinError 5] Zugriff verw eigert: 'c:\\program files\\python37\\Lib\\site-packages\\pyserial-3.4.dist-info ' Consider using the `--user` option or check the permissions. You are using pip version 10.0.1, however version 19.2.3 is available. You should consider upgrading via the 'python -m pip install --upgrade pip' comm and. C:\Users\Kasper> run into user permission issues i guess ... allways thought that i have admin-rights on this machine!? any idea Edited September 16, 2019 by tarifa Link to comment https://www.neowin.net/forum/topic/1387023-unable-to-flash-micropython-to-esp-32-open-serial-error/#findComment-598482979 Share on other sites More sharing options...
0 tarifa Posted September 16, 2019 Author Share Posted September 16, 2019 (edited) update: finally were have moved one big big step forwards well we had three options this way - with the using-micropython-on-an-esp8266-with-upycraft https://maker.pro/esp8266/tutorial/using-micropython-on-an-esp8266-with-upycraft this way: esp_tool via github https://github.com/espressif/esptool/blob/master/esptool.py and this way Learn to use MicroPython on a NodeMCU ESP8266 through uPyCraft with an LED sample code.https://maker.pro/esp8266/tutorial/using-micropython-on-an-esp8266-with-upycraft reports here: https://forum.micropython.org/viewtopic.php?f=2&t=6941&p=39462#p39462 finally it worked with this one we have had sucess ESP8266-Flasher :: ESP-IDF http://www.dietrich-kindermann.de/esp_flashtool.htmlhttps://pypi.org/project/wxPython/#files it was working like a charme we took this esp: (and i see that this is the wrong one - ) C:\Users\Kasper\Downloads\esp32spiram-20190913-v1.11-312-g22099ab88.bin Connecting.... Detecting chip type... ESP8266 Chip is ESP8266EX Uploading stub... Running stub... Stub running... Configuring flash size... Auto-detected Flash size: 4MB Erasing flash (this may take a while)... Chip erase completed successfully in 13.2s Flash params set to 0x0040 Compressed 1281760 bytes to 785761... Wrote 1281760 bytes (785761 compressed) at 0x00000000 in 70.7 seconds (effective 145.1 kbit/s)... Hash of data verified. Leaving... Done. note i will have to try another than this esp: (and i see that this is the wrong one - ) C:\Users\Kasper\Downloads\esp32spiram-20190913-v1.11-312-g22099ab88.bin i will try out later the week and will come back and report all the findings. have a great day note - i am so lucky that i have had a little success Edited September 16, 2019 by tarifa Link to comment https://www.neowin.net/forum/topic/1387023-unable-to-flash-micropython-to-esp-32-open-serial-error/#findComment-598483087 Share on other sites More sharing options...
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tarifa
dear community
issue: unable to flash micropython to esp 32: open serial error, please try again. hope to connect internet and try again.
pretty new to micropython - want to flash micropython to esp 32 ( resp 8266) board.
cf this docs: https://maker.pro/esp8266/tutorial/using-micropython-on-an-esp8266-with-upycraft
any idea;
many thanks for any and all help in advance.
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