LoPy

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  Repairing grilled LoPy (over voltage)?
  Jan 31, 2017, 4:19 PM • pod32   Jan 31, 2017, 4:45 PM

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  Jan 31, 2017, 4:45 PM

  You may have just blown the DC/DC converter. Maybe Pycom can tell us which one it is, I'd love to know more detailed specs on it too. It is s tiny tiny part you'll need some advanced soldering skills and a hot air station at a minimum
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  LoRaWAN network
  Jan 16, 2017, 9:13 AM • gouao   Jan 31, 2017, 2:15 PM

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  S Jan 31, 2017, 2:15 PM

  @jmarcelino It's possible to send peer-to-peer with two LoPy's. Pycom have supplied a tutorial on that in the documentation. The range I get between two LoPy's is about 400-500 meters in urban area, which is not particullary good though
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  LoRa Class Defaults
  Jan 30, 2017, 4:37 PM • wstallwood   Jan 30, 2017, 4:37 PM

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  Can't import I2C module
  Jan 28, 2017, 8:48 AM • kobeyu   Jan 30, 2017, 2:29 AM

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  K Jan 30, 2017, 2:29 AM

  OK, Thanks~ update: It works at version "1.5.0.b2" os.uname() (sysname='LoPy', nodename='LoPy', release='1.5.0.b2', version='v1.8.6-412-gf55ba50 on 2017-01-28', machine='LoPy with ESP32')
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  I2C LCD: code inside
  Nov 19, 2016, 8:20 PM • DVE   Jan 29, 2017, 9:42 PM

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  Jan 29, 2017, 9:42 PM

  @daniel if you look at my post https://forum.pycom.io/post/3254 it looks same as @Jiemde problem i have also malformed files - look for line oryginal file in my post
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  Timer.Alarm()
  Jan 27, 2017, 9:34 PM • tholden   Jan 28, 2017, 12:00 AM

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  T Jan 28, 2017, 12:00 AM

  Is there some other interrupts that are running in the background?
• M

  connection with ESP32 fails
  Jan 27, 2017, 10:23 AM • Mimite995   Jan 27, 2017, 1:42 PM

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  M Jan 27, 2017, 1:42 PM

  @livius Sorry my explanation wasn't correct. I mean I first tried the updater. That gave me a failure. The log was: connecting... Failure! then I tried to find the issue by other another tool, but i cant find the issue.
• N

  Trouble Getting Started ?
  Jan 23, 2017, 10:36 PM • nurquhar   Jan 25, 2017, 10:42 PM

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  D Jan 25, 2017, 10:42 PM

  Hello @nurquhar , Indeed the problem is that the person that had the LoPy before you already loaded scripts to connect to a certain LoPy network. What you need to do is to use the safe boot mode, connect via ftp and erase main.py and boot.py, then reset the board. This will cause the original main and boot files to be restored. After that please perform a firmware update using our update tool: https://forum.pycom.io/topic/522/new-firmware-release-1-4-0-b1 After that follow our getting started and the WLAN step by step on the docs, which also include examples to connect the LoPy to your wireless router and be able to telnet/ftp while keeping your laptop connected to internet. https://docs.pycom.io/pycom_esp32/pycom_esp32/tutorial/includes/wlan.html It is possible to transfer the files to the board via serial using Pymakr, just by pressing the sync button. Cheers, Daniel
• T

  Can't recieve data in LoRa mode
  Jan 25, 2017, 9:37 AM • ThatStudentGuy   Jan 25, 2017, 1:54 PM

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  Jan 25, 2017, 1:54 PM

  @ThatStudentGuy Yes, that's right, if you want to communicate between LoPy boards use "raw" LoRa ( mode=LoRa.LORA ) and set the boards up with the same parameters in LoRa.init(...) If you want the LoPy to participate in LoRaWAN networks (with a real gateway like the Kerlink) then use mode=LoRa.LORAWAN which doesn't have parameters, those are defined by the region you're in. LoPy as a pseudo-LoRaWAN single channel gateway is coming but it is a bit of a hack more for development and internal testing where users are aware of the limitations and shouldn't be a replacement for a real LoRaWAN gateway.
• B

  Swisscom LPN
  Jan 17, 2017, 10:59 PM • betabrain   Jan 21, 2017, 11:26 PM

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  C Jan 21, 2017, 11:26 PM

  Yes I have, sucessfully! I have used the ABP code sample from the docs. Worked as is.
• H

  Private blockchain on Lopy ?
  Jan 20, 2017, 3:08 PM • hainguyen   Jan 21, 2017, 2:26 PM

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  H Jan 21, 2017, 2:26 PM

  By private blockchain, I mean a local blockchain for all my devices to exchange the data in an application following defined smart contracts, no needs to interact with the global ledger. Geth Ethereum is one of the possibilities, and what I am looking for is the installation/implementation of Geth in Lopy if someone has done that before ?
• P

  Dealing with OTAA network failure
  Jan 20, 2017, 3:09 PM • PeterBaugh   Jan 20, 2017, 3:09 PM

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  pymakr will not sync project
  Jan 19, 2017, 8:16 PM • feabhas   Jan 20, 2017, 9:07 AM

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  H Jan 20, 2017, 9:07 AM

  @livius thank you so much, I too was banging my head with the same issue, FTP is much better and reliable, I'm using tera term to see the console. thanks Cheers
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  LoPy Nano-Gateway communication
  Jan 19, 2017, 4:42 PM • gouao   Jan 19, 2017, 4:42 PM

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  Run script on boot for LopY
  Jan 18, 2017, 9:36 AM • gouao   Jan 19, 2017, 3:23 PM

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  G Jan 19, 2017, 3:23 PM

  @livius said in Run script on boot for LopY: @gouao as you can see your boot file was run - because you have repl did you try my advice from second post - to put code not to boot.py only inside main.py and see if you do not got script error? Only the COM commection argumens in the boot.py, and the script in main.py. What the sync is really doing on the project ?
• S

  ESP32 ADC is noisy and non linear
  Jan 18, 2017, 3:15 PM • Shaun   Jan 18, 2017, 3:15 PM

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  This topic is deleted!
  Jan 18, 2017, 2:53 PM • oneeyed   Jan 18, 2017, 2:53 PM

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• C

  socket.send(msg) timeout
  Jan 16, 2017, 3:39 PM • chris   Jan 18, 2017, 1:30 PM

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  C Jan 18, 2017, 1:30 PM

  The send packet is 7 bytes long and the ack is 2 bytes. On the data rate I didn't set so whatever the default is. Power consumption is a good point on how to tell if it's busy but I want a software method. If we could tie a specific exception type to this cause then I could do something special in the exception handler.
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  LoRA antenna and pigtail
  Jan 18, 2017, 10:13 AM • borjam   Jan 18, 2017, 10:13 AM

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  OTAA connection to TTN
  Jan 1, 2017, 2:43 PM • affoltep   Jan 17, 2017, 10:36 PM

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  G Jan 17, 2017, 10:36 PM

  sorry for the confusion yes it is an ic880a not multitech yes i'm checking back all the cables again and see if this helps