MicroPython

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  Wifi RSSI and mqtt subscribe
  micropython mqtt wifi rssi rgb • • sjp770

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  You have to call either client.wait_msg() or client.check_msg() in order to receive messages. The former is blocking whereas the latter is non blocking and has therefore to be called in a loop. See the comments on the mentioned methods in the following file:
  https://github.com/pycom/pycom-libraries/blob/master/examples/mqtt/mqtt.py

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  int.from_bytes bug?
  buit-in library • • ttmetro

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  @bmarkus I tested that too on MP ESP8266 and ESP32. Therefopre I searched back about the issue and it's fix in the MP.org repository.

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  MQTT birth and last will - how to send IP and battery
  micropython lopy mqtt lipo battery • • sjp770

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  @livius
  wifiaddress = "IP Address is: " + ((str(wlan.ifconfig()[:1]))[2:])[:-3]

  Returns:
  IP Address is: 192.168.1.136

  Cheers :)

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  Please provide veryfied lipo batteries with matching connector for sourcing in germany and probably anywhere else
  lipo jst sourcing • • lollisoft

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  Yeah, I had to learn the hard way that reversed polarity will kill at least some of the boards (I fried a Pysense board because the cables from aliexpress did not match the convention of most batteries...)

  You can find some nice batteries on http://www.batteryupgrade.com/. Just make sure that you use one with a protection circuit to be on the safe side.

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  Bluetooth LE set_advertisement with flag and service_data
  bluetooth setadvertiseme servicedata ble • • PhS

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  Wifi and Bluetooth disable
  wifi bluetooth • • chrisi

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  @chrisi yes, you can use the USB port (as a serial port) and have access to the REPL or to update files using Atom/Pymkr for instance.

  An alternative would be to include code which enables Wi-Fi on some specific event, such as a press of the button on the expansion board or Pysense.

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  Can't get unittest to run
  unittest • • BetterAuto

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  Camera image over MQTT
  low power • • robmarkcole

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  @bucknall said in Camera image over MQTT:

  Hi @robmarkcole

  This is definitely possible over WiFi as there are working examples written in C for the ESP32, however I'm yet to see this ported to MicroPython so it might be a while before you're able to do it specifically in MicroPython.

  Here's a link to the example I'm referencing written in C;

  https://github.com/igrr/esp32-cam-demo

  I see that project converts color pictures into ASCII art. Can anyone enumerate some other options for capturing color pictures and sending via network, LoRa or otherwise? I know of the Arducam, what else?

  Anything native to the ESP32 that can just connect one of the Onvif cameras (OV7670, OV2640) and send?

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  Capturing console messages to a log
  console • • BetterAuto

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  utimeq in uhttpd for simple webserver
  micropython http post server • • bnjroos

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  +1

  utimeq enabled in sigfox would be awesome
  I'd like to use the latest version of picoweb on my LoPy but it has utimeq as a dependency.
  https://github.com/pfalcon/picoweb

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  Lopy ,GPS, micropython
  micropython lopy gps • • Shukla73

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  Log all uncaught exceptions to a file
  exception • • BetterAuto

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  increment files in SD card in python on Sipy
  sipy codeing micropython • • chrisi

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  Thanks anyway but the problem fixed itself after I updated the firmware and made a few other changes to my code but i still don't know what the problem was but am all good now.

  Kind regards,
  Chris

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  Learn python..
  python curses • • livius

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  At what time should I manually run gc.collect()?
  garbagecollecto • • BetterAuto

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  So it sounds like one risk is latency. What other risks are there from running it?

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  I2C Clock Stretching
  • brotherdust

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  @Eric24
  look at current firmware 1.7.6 there are some i2c releated fixes for hardware init

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  Import a module by a name stored in a variable? (importlib?)
  import • • BetterAuto

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  LTE CatM1 and NB rollout timeframe, anyone?
  lte global • • mehfoos

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  What I meant is, I haven't planned to cover Poland as a specific country. I will cover it under the various Mobile Networks Operators. At the moment I don't have much specific to go by other than I know Deutsche Telecom is rolling NB-IoT out in cites across Poland through 2017. I am trying to understand via our contacts what Orange is doing specifically in Poland and will come back to you as soon as I have the information.

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  GPL v3
  license • • this.wiederkehr

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  @this.wiederkehr
  GPL has a specific source exclusion for System Libraries (otherwise you couldn't have GPL projects on closed source operating systems)

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  Converting sensor data to byte
  micorpython ttn lora lopy • • tobru

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  Thanks for the suggestions! Still looking to get some examples how to serialize sensor data with MicroPython for TTN. All examples I found are for Arduino. Maybe @bucknall has some nice examples around?