Guides

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  LoPy Nano-Gateway Extended (Timeout and Retry)
  Jan 20, 2017, 1:38 PM • Roberto   Apr 2, 2018, 6:02 AM

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  A Apr 2, 2018, 6:02 AM

  @roberto I have used the above code and the communication between the one node and gateway is generated, but the device id and package. What is the procedure to get the exact connected device.Please update as soon as possible your help will be appreciable. Thank You
• T

  Live Plot data by reading COM port data
  com port live plot • Mar 9, 2018, 2:37 PM • ThomasP   Mar 9, 2018, 3:51 PM

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  T Mar 9, 2018, 3:51 PM

  That was quick. I just wanted to make sure I was doing it properly. Works great. Thank you.
• J

  Building a water meter counter using a Pycom Lopy
  pycom relay input • Jan 31, 2018, 7:44 AM • Jiancha   Jan 31, 2018, 8:00 AM

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  Jan 31, 2018, 8:00 AM

  @jiancha For the input of the Lopy Youll need some kind of Pull-up. That could be an internal pull.-up resistor, or an external one, like 4k7 to 3.3V. Otherwise the input is floating when the switch is open. Which Pin of LoPy are you using for input, and how do you control it? Using the reed relay is in principle a good idea to protect the Lopy from transitions. But the values of 33k/100k for the voltage divider are also suitable. The resistor values are not too high. The input resistance of the Lopy is several MOhm.
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  I need a Pycom for Dummies book. For an aboloute beginner, all of the postings here and the tutorials by Pycom are frustratihg and worthless.
  dummys • Jan 18, 2018, 2:45 PM • jimsmith2354   Jan 19, 2018, 11:33 AM

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  Jan 19, 2018, 11:33 AM

  @crumble Thanks for that feedback, I will definitely take it all into consideration. At the moment our priority is making the getting started part of the documentation more complete, as well as producing actual datasheets for our products. Once this work is completed I will move on to strengthening our examples and library documentation. I agree with you its not clear what does what and how to use it if you arn't able to pick up the code and read through it all (you shouldn't have to). Once these have been improved the next step will be writing guides on best practices not just about memory usage but also power usage and security. Once again thanks for the feedback, it has definitely been taken on-board and noted.
• R

  Lorawan nano gateway issue (gateway starts working after reset)
  otaa nano gateway ot • Jan 8, 2018, 1:59 PM • rvandam   Jan 18, 2018, 1:20 PM

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  R Jan 18, 2018, 1:20 PM

  A little update, when I power up node and nano gateway the same time everything works fine too. So the issue is when I first power up the gateway and a few seconds later the node.
• 

  LoPy Nano-Gateway
  Nov 10, 2016, 5:53 PM • Roberto   Jan 14, 2018, 2:14 AM

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  M Jan 14, 2018, 2:14 AM

  @colateral Hi, i am using 1 gateway that only with pymaker opened while the node i using the power bank to power up. I have try both in vice versa yet no result showing out.
• C

  Lopy SPI SLAVE
  spi slave lopy • Jan 9, 2018, 3:11 PM • Christian   Jan 9, 2018, 7:09 PM

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  C Jan 9, 2018, 7:09 PM

  Hi @jmarcelino I wanted to connect the Lopy as slave to a SAMD21G18 MCU. Normally my main goal is to make a board SAMD21G18+SX1272+NRF52832. But while waiting to recieve all the components, I wanted to test Lopy with the SPI slave!! But another option is the RX and TX. I'm I wrong somewhere?
• H

  Driving WS2812 neopixel led strip
  neopixel • Nov 24, 2017, 7:38 PM • hansamann   Nov 27, 2017, 12:45 PM

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  H Nov 27, 2017, 12:45 PM

  thx, it worked with this lib!
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  Set up channels for LoRaWAN EU 863-870MHz ABP
  lorawan abp • Aug 13, 2017, 7:11 AM • bmarkus   Nov 24, 2017, 7:58 PM

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  A Nov 24, 2017, 7:58 PM

  @jcaron Thanks, forgot about that (since it is relatively new). The gateway is just a meter away from me (indoor).
• M

  RGB
  design guide • Nov 22, 2017, 12:10 PM • misterlisty   Nov 23, 2017, 12:05 PM

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  Nov 23, 2017, 12:05 PM

  If you have a look at our halloween pumpkin project on hackster https://www.hackster.io/user83346052/raw-lora-communication-with-pumpkins-f02630 you can see that you can get a lot more than 2 RGB LEDs working if you need to
• M

  Connected to wifi but no internet
  wifi • Nov 14, 2017, 12:10 PM • misterlisty   Nov 16, 2017, 8:24 PM

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  X Nov 16, 2017, 8:24 PM

  Can you please run the following code after connecting to WiFi and post the output? import socket s = socket.socket() print(socket.getaddrinfo('time-a.nist.gov', 13)) s.connect(socket.getaddrinfo('time-a.nist.gov', 13)[0][-1]) s.read()
• M

  Sharing variable among files?
  python • Nov 13, 2017, 2:31 PM • misterlisty   Nov 13, 2017, 10:22 PM

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  Nov 13, 2017, 10:22 PM

  @robert-hh i was too fast, you have right global is for same unit simple use qualified name e.g: a.py myvar = 7 b.py import a def changea(): a.myvar+= 2 print(a.myvar) def printa(): print(a.myvar) for test use import b b.changea() >>>9 b.print(a) >>>9
• B

  How I built a custom firmware for frozen bytecode
  firmware frozen • Oct 10, 2017, 2:31 AM • BetterAuto   Oct 10, 2017, 4:49 PM

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  Oct 10, 2017, 4:49 PM

  @betterauto I found this redirection of USB to a VM often flaky. VMware works better than Virtualbox.
• B

  Tutorial - Pymakr - REPL Console and Creating a Project
  Oct 24, 2016, 9:21 PM • Bettina   Jul 20, 2017, 11:50 AM

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  Jul 20, 2017, 11:50 AM

  @ttmetro This is actually in our documentation - https://docs.pycom.io/chapter/pymakr/. I'm not sure why this post exists but I'll take it down as it doesn't provide any content! Thanks, Alex
• T

  Pysense Pinouts?
  pysense documentation • Jul 15, 2017, 5:45 AM • TCB   Jul 15, 2017, 10:21 PM

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  D Jul 15, 2017, 10:21 PM

  I concur. Could you maybe publish the schematics of the pysense? That would already help a lot, also with regard to power management.
• M

  connecting umqtt library to SAP trial account IOT platform
  pycom lopy wifi umqtt sap iot • Jun 26, 2017, 11:55 AM • mkbenon   Jun 27, 2017, 2:27 PM

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  M Jun 27, 2017, 2:27 PM

  This is the server I am using. You can get a trial account. I am trying to either use the MQTT Websockets or MQTT TCP/IP with mosquito as the broker.
• B

  Small update for Pymakr plugin description for Atom
  pymakr website pycom • May 6, 2017, 9:01 AM • Batilan   May 10, 2017, 8:20 AM

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  May 10, 2017, 8:20 AM

  Hi @Batilan, Noted! Will make this change to the docs! Thanks, Alex
• F

  Onewire DS18B20P
  tutorial onewir • Apr 25, 2017, 7:47 PM • federico   Apr 25, 2017, 7:47 PM

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  This topic is deleted!
  Mar 21, 2017, 7:27 PM • smssms   Mar 21, 2017, 7:27 PM

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• 

  This topic is deleted!
  Jan 20, 2017, 1:27 PM • Roberto   Jan 20, 2017, 1:27 PM

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