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    • M

      Lopy4 433MHz
      LoPy • lopy4 433mhz • • Mladen  

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      bmarkus

      @robert-hh said in Lopy4 433MHz: @bmarkus Standard build of Pycom. You know that I made a version of the pycom firmware and tested that against LORIOT. It worked. I see, thanks. I was not sure your are referring to the LoRa Alliance or PyCom
    • R

      Lopy4 serial connection troubleshooting
      LoPy • lopy4 serial linux • • Re  

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      R

      I found out what was the problem: not the cable, not the up to date expansion board3, but simply the out-of-date lopy4 firmware. Updating it fixed it!
    • S

      Does Pybytes support Lorawan nano Gateway on Lopy4
      LoPy • lopy4 pybytes • • shiva shankar  

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      M

      Hello Xykon, I kindly wanted to check, if there is an update on the Nanogateway support for PyBytes? It would be fantastic for me to have that supported. I'm running multiple LoPy's that are repoting sensor data via LoRa to a Nanogateway.
    • A

      LoRaWAN TTN Uplinks Ok, no Downlinks. Channel issue? Help! ;)
      LoPy • lopy4 lorawan ttn • • AidanRTaylor  

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      Charly86

      @jmarcelino Hey, got it, thanks As you suggested I'll write a prog to quick send data and looks on my backend for frequencies of received packet ;-) Look like the faster way
    • B

      Precise pulse duration
      Discussion • lopy4 python pulse • • berni  

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      B

      Thank you @robert-hh and @jmarcelino! I will give it a go and report back. :-)
    • M

      LoPy - oscillator frequency
      LoPy • lopy4 frequency oscillator • • m.toriello  

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      M

      @jmarcelino Ok, thank you! Best regards
    • L

      LoPy4 deepsleep function without deepsleep shield ?
      LoPy • lopy lopy4 deepsleep library deepsleep wake • • Luxior  

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      M

      You have to look at machine.deepsleep link text For example with machine.deepsleep(60000) the LoPy will sleep for 60 seconds (better to say about 60 seconds).
    • D

      LoPy4 Firmware upgrade impossible
      LoPy • lopy4 problem firmware upgrad • • dicktonyboy  

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      robert-hh

      @dicktonyboy You could check, whether P2 is connected at least to the RGB Led. It is one of the connections faced to the LoPy Shield, opposite to P2.
    • B

      Broken update of LoPy4
      LoPy • lopy4 core dump coredump update failed boot • • bobie  

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      B

      @jmarcelino The only thing connected during update is PyTrack module which I use to connect USB.
    • B

      Lopy4 Guru meditation error
      Issues & Bugs • lopy4 firmware error guru meditation guru error • • bjsi9  

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      M

      @jmarcelino do you already searching for a solution or have found it ???? I have the same problem
    • T

      Higher power consumption on Lopy4
      LoPy • lopy4 usb consumption regulator • • Toppert  

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      T

      @jcaron Yeah pretty sure it's in deep sleep at that moment. This +50mA is constant in deepsleep but also in normal state. So for example it draws 160-170mA instead of 110-120mA on the other LoPy with the same configuration and program. And in sleep it consumes 50mA while the other one around 0.215mA. It might be a simple mismanipulation but it's still strange that it's exactly 50mA. On the next prototype I will try to check the consumption before seding it as a test just to be sure.
    • B

      Updating LoPy4 with updater 1.14.1
      Issues & Bugs • lopy4 firmware update upgrade • • bjsi9  

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      B

      @xykon Works now with the new 1.14.2. Thank you!
    • R

      Cannot typr into REPL window
      Pymakr • lopy lopy4 pymakr • • RG_ELECT  

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      R

      @rg_elect I have found the youtube Video@ alex' s corner which has a much better explanation of Nano gateways and also sending data to the lopy. :)
    • pierrot10

      How can I track my error on onewire library
      LoPy • lopy4 onewire ds18b20 nameerror • • pierrot10  

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      pierrot10

      @robert-hh Hello. Thnak for your reply. Apparently, after the transfer, a H (or a I, etc) is added as the first caracter, as the following: H#!/usr/bin/env python3 """ OneWire library for MicroPython """ It the reason why I got that error. The problem, I can not correct it directely because after saving it, the file become newer than the source and it will be overwritten at the next sync. Then I look at the other lib file and I observed than none of them has that line. I remove and it work until I got a message stating, it can not imported DS18X20. I first open my file with textwrangler, then I open it with Atom and I observed, the text was terribly formated (A lot on the same line). I reformat it and it's works but not always.. Now the problem it state a Traceback (most recent call last): File "main.py", line 9, in <module> File "/flash/lib/onewire.py", line 2 SyntaxError: invalid syntax here is line two: #!/usr/bin/env python3 """ OneWire library for MicroPythonß """ import time import machine class OneWire: What is wrong? Then I gave a spave (return key) before the """ and I got the same error message Traceback (most recent call last): File "main.py", line 9, in <module> File "/flash/lib/onewire.py", line 1, in <module> NameError: name 'A' is not defined Then how can sync my onewire file without a formatting issue and with a unwish caracter before the first line? Does I need to check something on Atom? Thabk for your help EDIT: OK. Problem seems to be solved. I copy again the content of onewire.py to /Flash/lib/onwire.py and on Atom, at the bottom right, I changed LF to CRLF. The problem does not appear any more. That funny because my main.py has LF (and not CRLF) and I do not have this problem with main.py
    • pierrot10

      Which library work with DS18B20 water proof temperature sensor?
      LoPy • lopy4 sensor temperature ds18b20 onewire • • pierrot10  

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      pierrot10

      @robert-hh Oh! thank, I missed it. Great I am happy to try it, this evening! Thank a lot!
    • P

      LoPy4 - Both LoRa antennae required?
      LoPy • lopy4 antenna 433mhz damage • • Prawnhead  

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      jmarcelino

      Hi @prawnhead You just need an antenna for the frequency you need
    • L

      Connecting two Lopy4's to Wi-Fi Help
      Discussion • lopy4 wifi connection prob send data two • • letsgo  

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      robert-hh

      @letsgo If you have a home router & access point, the easiest is to have both LoPys connected to that. For that, follow the instructions at https://docs.pycom.io/chapter/tutorials/all/wlan.html, section: Connecting to a router. if you want to connect them directly, one of them has to run as access point (AP), the other as station (STA). Since the devices run as AP by default, you just have to reconfigure one of them the way, told above.
    • D

      LoPy4 LoRaWAN Nano Gateway and Node - ABP and OTAA issues
      Discussion • lopy4 ttn otaa lorawan nano gw abp • • DillanG  

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      robert-hh

      @bed Yes, approach it step by step. First check the RF connection witrh the simple examples, which are tricky too. Then try ABP join, since that does not need downlink messages. After that go for OTAA join. There is indeed a problem with DRl 0 in the official 1.17.3.b1 revision, see https://github.com/pycom/pycom-micropython-sigfox/commit/ae3a294c40026433dbdac3e08da788b2b4c4dfdb, but that should not affect here.
    • dws

      What should the minimum current rating of a power supply be for LoPy4?
      Discussion • lopy4 • • dws  

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      seb

      @dws There isnt at present, but ill add it to the to-do list!
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