MicroPython

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  The received data is not complete
  • Andy Smith  

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  @Andy-Smith that line reads a GPS response which are coming in at 10 lines or more each second (depending on the gps) and the function falls out the end, only printing the ones that I am interested in decoding.
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  micropython maths lib?
  • kjm  

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  socketio
  • KJ Leong  

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  How to drive an LCD screen with micropython?
  raspberry pi arduino micorpython lcd • • Andy Smith  

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  @robert-hh Sorry for the late reply, the screen uses the UART interface.
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  MQTT Security LTE-M
  mqtt • • Thomas Thomas  

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  Python clumsy
  • kjm  

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  zip file extractor
  • kjm  

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  @Gijs Yeah, it just occurred to me if there was a compiled version of boot.py on the device I could compare it's size to the gzip size for the same file.
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  Python or C driver for SC16IS762 dual SPI UART?
  • Andrew Starr  

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  @Elizar I suspected as much. Thanks
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  check if thread is running
  threading watchdog • • tttadam  

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  @Gijs Thought of about the same thing. I would just add a short sleep at the end of the loop, so that in case it fails very quickly it doesn't go into a tight loop, especially if the code in the thread is sending anything (over the network or to a device connected via I2C or SPI etc.). Of course it relies on the contents of the function being able to restart a second time. I'm not sure this is 100% fool proof as I believe there are cases when some conditions will not result in proper exceptions being thrown, so of course using and feeding WDT (or an external watchdog) may be a good idea as well.
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  _thread vs uasyncio
  thread uasyncio • • tttadam  

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  @peterp Note that the 'event.py' which defines a semaphore for asyncio does not load on the latest version, as it depends (for ThreadSafeFlag) on being able to extend uio.IOBase. This base class is not used in the pycom micropython uio port apparently... This is an issue to use asyncio on pycom ports as ThreadSafeFlag is the only way to do a semaphore from an ISR or other _thread task... any ideas?
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  usocket vs socket
  • Hamed Talebi  

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  Both are eventually the same thing :) Because of compatibility with Python, you can call import socket, which will import the usocket library. This is explained here: https://docs.pycom.io/firmwareapi/micropython/ :)
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  simple mqtt and wss
  mqtt wss • • tttadam  

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  I did not, but this topic came back again! :) So this time I will have a secure mqtt.
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  Micropython interpreter differences between cmd line and program
  • kjm  

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  @robert-hh said in Micropython interpreter differences between cmd line and program: for i in range (2): print('i is 1' if i else 'i is zero') The if else inside (the print brackets) I should have known, to much time inside python 2.7, that's my problem. Tnx Rob.
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  MQTT with SSL gives error "OSError: -4480"
  • Louis Henn  

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  @Louis-Henn said in MQTT with SSL gives error "OSError: -4480": Now the only problem I'm getting is a MQTTException: 5. Seems like this means the server refuses the connection since my device is not authorised. Seems like this usually happens with an incorrect username/password, but I know mine is correct. I don't suppose anyone knows what this problem could be? I am fairly certain that is what it means. Double-check your password with a mosquitto client or some MQTT tester. Also, try against an MQTT test server which has no authentication.
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  Modbus Slave on MicroPython/LoPy4
  • supergumby  

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  @supergumby were you able to find and implement a modbus RTU serial slave on Pycom? We are looking for this as well and it is certainly strange that the Pycom implementation only contains the Master functionality.
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  crypto.generate_rsa_signature Error
  • mthethwansm  

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  @mthethwansm I'm having the same problem, did you ever get this resolved?
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  Anyone have a reliable MQTT interface using PyCom?
  • netskink  

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  @ahmadelmasri said in Anyone have a reliable MQTT interface using PyCom?: Hi @netskink, Yes this is part of Pybytes, but you can use the MQTT without integrating with pybytes, I mean you can use the library instead of umqtt.py In your case what you should use is only: mqtt_core.py msg_handl.py the try-catch is related to libraries under the "lib" folder and in the frozen zone. so if you are using your own firmware, you can just add the above files and ignore the try-catch or remove them. if you are using pybytes firmware, you can import mqtt.py or _mqtt.py and do subscribe, publish directly. @ahmadelmasri I am trying this but it complains about missing arguments for MQTTClient, such as the mqtt_download_topic and pybytes_protocol. Do you have complete example code using the Pybytes MQTT library?
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  Coming from Arduino to Micropython which ide for a Mac?
  • andrew alberty  

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  @andrew-alberty Most people use Thonny as the IDE. https://thonny.org/ P.S.: Using the ESP8266, you may better discuss your topics at the genuine MicroPython forum forum.micropython.org
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  Update to Micropython V1.13
  • Susan Mackay  

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  @Gijs said in Update to Micropython V1.13: You (@David-Neumair ) are indeed correct in that we need to be more transparent about our future plans. Gijs Hello @Gijs , I second that! Currently we've developed a product with pycom modules inside, and we need to add ULP feature to our end product in order to count pulses (flowmeter feature). We promised to our end users (in 2019-2020) that the modules would have that feature on a few months but at the moment we are waiting ULP feature to be added in pycom firmware. The only tutorial that we found is one from @oligauc https://forum.pycom.io/topic/5337/ultra-low-power-ulp-processor-part-1 but I believe Oligauc no longer works at or with pycom. I've tested this tutorial but I don't know what to do next. It's possible to add ULP feature? or is something pycom isn't going to implement? Kind regards!
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  join() threads?
  • g0hww  

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  As my best knowledge NO. :( Threading in pycom threading is very limited. I am also looking for a solution for threading locks. You can check out uasyncio.