MicroPython

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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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  _thread vs uasyncio
  thread uasyncio • • tttadam  

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  @robert-hh I have downloaded, and updated firmware and confirm it works! Thanks for you awesome support!
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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.
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  (Newbie) - filesystem
  • Mark Wills  

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  @robert-hh said in (Newbie) - filesystem: @Mark-Wills did you set ftp to passive mode? No I don't think I did. I'll check that - thank you!
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  [WPA2-ENT] Problem connecting to WPA2 Enterprise using PEAP-MSCHAPV2
  • Alephus  

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  @jcaron said in [WPA2-ENT] Problem connecting to WPA2 Enterprise using PEAP-MSCHAPV2: @Alephus did you provide the LoPy4’s MAC address to your IT department so they can allow it to connect? It might be the key to it all... I actually questioned them about it since in the instructions it says that Teachers and non-Teachers must inform the IT departement about their MAC address, but they say that Student accounts and the 2 test accounts im using dont require it. But i will request another test account linked to the LoPy MAC address to see if thats the case. Translation: < Note: Teachers and non-Teachers of the University must inform in SI&C (Information and Comunication Sistem) the MAC address of the equipment, to be able to connect to the eduroam network. >
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  OSError: [Errno 90] EMSGSIZE
  • Zino Henderickx  

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  @jcaron Yes I will try that. Thanks for the advice!
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  Anyone made a pyboard footprint for Kicad?
  • aadesh pandey  

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  Thank you for your response and support.
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  [solved] MQTT and tls
  mqtt ssl tls • • tttadam  

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  You can upload it either through FTP, or put it in the project folder and add the extension to 'upload file types' in the Pymakr Global settings (I think its already in there) Gijs
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  TSL2591 runtime error: Overflow reading light channels
  i2c library tsl2591 runtime error • • tttadam  

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  It looks like you are using signed intergers/numbers for the reading from the light sensor. When it reaches the half way value it wraps around and goes negative. If you simply define the data as an unsigned type does it fix the issue.
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  Timer.Alarm nested in another Timer.Alarm possible?
  • railmonitor  

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  @railmonitor You do not need the lamda function for setting the callback. Simply giving the name of the callback function is sufficient. Timer.Alarm(timer_sampler, s = 1, periodic = True) Obviously, the function timer_sampler has to be placed in your script before using if for the alarm callback notification, and the callback has to have a single argument, the alarm object.
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  Convert string to integer
  python • • misterlisty  

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  @robert-hh said in Convert string to integer: binascii.hexlify("\x12") On my gpy binascii.hexlify("\x12") gives b'12' Rob. How come I get bytes but you get a hex string?
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  Wipy pin Vin
  • ciccio  

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  @ciccio vin is the pin to supply the WiPy. When the module is attached e.g. to the expansion board, you can of course take power at that pin for other devices. But the WiPy is not the source of that power.