Issues & Bugs

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  Core dump problem
  • sita  

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  Dear @sita, @ps47 also experienced similar errors like you have been observing [1]. He is also using pure LoRa. Using the most recent 1.20.2.rc3 release seems to help here [2]. Thanks @husigeza and the whole Pycom team for mitigating this issue. I tried the new build LoPy4-1.20.2.rc3-0.8.0-vanilla-squirrel.tar.gz and not any “bad00bad bad00bad bad00bad” Core Panic happened till now. With kind regards, Andreas. [1] https://forum.pycom.io/topic/5514/random-core-panic-with-lora-socket-send-recv-device-doesnt-restart-try-with-config_esp32_panic_silent_reboot [2] https://community.hiveeyes.org/t/investigating-core-panics-on-the-lopy4/2878/29
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  Expansion Board 3.0 Serial Driver - doesn't exist
  • supovic  

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  LoPy4 w/ PyTrack: GPS does not show up!
  gps pytrack • • jlandercy  

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  @jcaron Thank you for answering. My question is not about WPS which is also a very interesting topic anyway or smartphones applications. My question is about GPS and L76 chipset as implemented on the PyTrack. Indeed WPS helps GPS to get quicker resolution. I do agree with you the PyTrack library is very crude, thank you for the last link, this one is helpful.
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  “+CME ERROR: unknown network message” error while sending AT USSD command
  at commands • • nick-IT  

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  BLE Advertisement Max Length
  lopy4 ble • • pvstejeswar  

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  Pymakr 1.4.13 incompatible with Atom 1.38.2
  pymakr install atom settings • • Tombee  

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  Atom/pymakr sync file types
  pymakr atom sync file type • • johand  

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  @goldfishalpha No, I just moved the txt-files outside the project folder. That is good enough for me. Johan
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  Lost PyMakr in VSCode
  vscode pymakr • • ChangedDaily  

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  @crumble and @Paul Thornton Switching on 'show hidden devices' in the Device manager (Windows 7) did not reveal anything new. Only COM1, Dell COM3 and Dell COM5 showed up (see screenprint in earlier post). What finally worked to solve my problem is to install the driver file pycom.inf downloaded from https://github.com/pycom/pycom-micropython-sigfox/blob/master/docs/pycom_esp32/tutorial/includes/downloads/pycom.inf from within the device manager (Action >> Add Legacy Hardware >> Search for and install the hardware automatically >> Ports (COM & LPT) >> Have disk >> Browse to pycom.inf file). I installed the 'Expansion 3' option. That installed the expansion board 3 driver, but it showed an error in the device manager (device cannot start). But when I next connected an expansion board V3.1 (with lopy4) to the laptop with usb, a new COM port ('Expansion 3 COM 19') appeared in the device manager, and this one allows me to connect from Atom. Also an Expansion board V2.1A with a lopy can now be connected. So problem solved. Although I still do not know what caused the connection problem. Auto connect does still not work because the working driver is at the bottom of the serial devices list, and the auto-connect takes the first one in the list, that one does not work. But anyway, PROBLEM SOLVED, I can connect manually by selecting the right COM port. Thanks for all the help!
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  Sipy deepsleep shield and sigfox transmission
  sipy voltage • • crasu  

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  Hello @crasu if you use the pycom firmware tool and select "development" in the type dropdown on the communication page instead of "stable" you'll flash the latest release candidate that should have a fix for this.
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  Internet protocol login issues
  internet connec • • novajones001  

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  As in you have a pycom board at 192.168.1.20 that you'd like to connect to. Or are you having issues connecting to a wifi network via your pycom board?
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  FTP fails on larger files
  ftp • • crumble  

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  Checked it with a second SD card with only one partition and rebootetd the router and clickt the LoRa antenna into the WiFi part. It is faster and I get less problems and sometimes larger files, but it will still breaks. Sometimes after a few megabytes sometime after a few k. At the moment it is only a nice to have feature. I wat to check the saved stream of the GPS in an editor before I use it as a test stream for my module. I will stop testing.
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  Development release 1.20.0.rc3 and LittleFS Upload problems
  lopy firmware update • • thinginnovations  

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  Does this always fail on the same 3rd file? How large is that file? I presume its a normal .py file and not some multi MB binary or something equally strange?
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  Cannot install the Pycom Firmware Update
  win10 update tools • • Jiemde  

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  @santorcuato Found a simple guide on how to add exceptions for programs. https://blog.avira.com/exceptions-avira-antivirus-3-steps/
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  Fresh install on VS Code: broken
  pymakr mac vscode • • Tycho  

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  @ulwur could you post your version numbers? (VSCode, Operating System, Pymakr)
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  Pycom Console not interactive on latest VSC/Pymakr
  pymakr console vsc • • luca.gamma  

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  Hi @dan thanks for your reply. Actually not, also tried with an older VSC version (i.e. 1.25.1) but result is even worst (error: command pymakr.* not found and console doesn't start). Also downgraded Node.js to the LTS (8.12.0) but no luck. Because I'm using VSC for Python and to manage other non-pycom micropython-based boards via terminal it would be comfortable having a single IDE. Is there a particular setup known to work (firmware, VSC, Pymakr, Node.js, versions, platforms and architecture)? PS: Using Atom 1.31.1 on Win10/64 with Pymakr 1.4.4 I notice no issues, REPL responds correctly.
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  Lost pymakr Pycom console in VSCode after update VSCode
  pymakr vscode terminal • • jand  

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  @dan I have the same Issue on Ubuntu 18, extension don't work VSCode version 1.27.2 Pymakr version 1.0.2
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  Can't achieve to get a project in PyMakr
  pymakr problem project • • ropito  

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  HI @ropito, I've tested it and I see that it indeed doesn't display the project name when working on windows. It's only a UI issue though. It does detect your project and will upload files from it when using the upload or download feature. It's just the UI label that doesn't display the name. I'll look into it and will fix the label in the next release.
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  Pymakr VCS Issue on OSX
  pymakr vsc • • oka  

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  @dan Roger that!
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  FiPy connects COM forever and
  fipy problem com port • • szyba91  

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  @szyba91 P12 can be pulled up directly. But using a resistor is also OK. 4.7K is a good choice. CTRL-F is to be pushed in the Terminal window, where you expect the REPL prompt. it will be caught the the serial interrupt handler.
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  Code run _thread.start_new_thread, that includes AWS MQTT causes guru meditation
  mqtt thread aws • • timh  

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  I have the same problem using this library or simple mqtt in another thread with version (1.18/1.19 Pybytes) rst:0x7 (TG0WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff8028,len:8 load:0x3fff8030,len:1984 load:0x4009fa00,len:0 load:0x4009fa00,len:19112 entry 0x400a05e4 Initializing filesystem as FatFS! Guru Meditation Error: Core 0 panic'ed (Cache disabled but cached memory region accessed) Core 0 register dump: PC : 0x401f27e8 PS : 0x00060c34 A0 : 0x8005582c A1 : 0x3ffc0970 A2 : 0x00000000 A3 : 0x00000001 A4 : 0x800995d1 A5 : 0x3ffea5f0 A6 : 0x0000b030 A7 : 0x3ffea6a4 A8 : 0x8008cc86 A9 : 0x01000000 A10 : 0x07040000 A11 : 0x00000000 A12 : 0x00000013 A13 : 0x00000000 A14 : 0x3ffae270 A15 : 0x00000000 SAR : 0x0000000e EXCCAUSE: 0x00000007 EXCVADDR: 0x00000000 LBEG : 0x40099276 LEND : 0x40099285 LCOUNT : 0x00000000 Core 0 was running in ISR context: EPC1 : 0x40092e5f EPC2 : 0x00000000 EPC3 : 0x00000000 EPC4 : 0x401f27e8 with the old version (1.17.3.b1 or 1.18.0) the error was different but there was. Connecting to MQTT broker.... 1 2 3 4 ***ERROR*** A stack overflow in task MPThread has been detected. abort() was called at PC 0x4008e66c on core 1 the mqtt library is: https://github.com/yutter/micropython-mqtt Furthermore after updating to the 1.18.0 or 1.19.4.b4 to try to understand if the problem related to the threads and mqtt had been solved I had another problem, I can not load some files ... example of what happens that did not happen before; I added the size of the files in which I have problems Reading file status Failed to read project status, uploading all files Creating dir lib Creating dir www Creating dir www/bootstrap Creating dir www/bootstrap/css Creating dir www/bootstrap/fonts Creating dir www/bootstrap/js Creating dir www/js [1/18] Writing file SI7006A20.py [2/18] Writing file boot.py [3/18] Writing file hal.py [4/18] Writing file lib/mqttserver.pub.pem [5/18] Writing file main.py [6/18] Writing file mqtt.py [7/18] Writing file umqtt.py [8/18] Writing file www/bootstrap/css/bootstrap.min.css "filesize (121.3kb)" Failed to write file, trying again... Failed to write file, trying again... Filecheck failed [9/18] Writing file www/bootstrap/js/bootstrap.min.js "filesize (36.9kb)" Failed to write file, trying again... [10/18] Writing file www/index.html [11/18] Writing file www/js/angular.min.js "filesize (99.0kb)" Failed to write file, trying again... Failed to write file, trying again... Filecheck failed [12/18] Writing file www/js/app.js [13/18] Writing file www/js/jquery-1.11.1.js "filesize (282.8kb)" Failed to write file, trying again... Failed to write file, trying again... Filecheck failed [14/18] Writing file xApp.py Failed to write file, trying again... [15/18] Writing file xConfigureFile.py [16/18] Writing file xHTTPConfigure.py [17/18] Writing file xWebServer.py [18/18] Writing file xWebSocket.py why? waiting for a quick reply best regards Giacomo