Discussion

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  Water flow sensor question
  • Smart Farming  

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  I provided a general solution to pulse counting in the following post: https://forum.pycom.io/topic/6006/water-flow-sensor-looking-for-advice/2?_=1632413513467 At some point I may provide a micropython library for this.
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  Water Flow Sensor - Looking for Advice
  • JSGora  

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  I've had success using Atlas Scientific's embedded flow processor for water meter pulse totalizing: https://atlas-scientific.com/embedded-solutions/ezo-embedded-flow-meter-totalizer/ I connect it to a FiPy via I2C then forward the readings to my server over MQTT. Seems like a good option since the flow processor will keep totalizing if your LoPy restarts.
• A

  Most recent CE certification documents
  • Alexis Demassiet  

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• C

  How to wake up the lopy with the accelerometer
  • CeylordZ  

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  Yes, as the reading is only caught on the interrupt, before the microcontroller wakes up, we cannot see the data
• J

  NB-IoT uplink and downlink - Is it really this small of a window? Energy consumption problem.
  • João Rocheteau  

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  This topic is deleted!
  • João Rocheteau  

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  Need hardware recommendations
  • Samuel Patwin  

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  Hi Samuel, Please check the network connection you are planning to use. For your application, it seems a direct LoRa RAW connection would be ideal, though I do not know about the separation distance. The problem I foresee in your current setup is the need of a central server able to relay communications between the devices, as cellular is a centralised network, requiring the need of a separate server (its not possible to connect between devices directly). Other than that, the Fipy / Gpy should work fine for the application :)
• B

  Client socket not working with wifi, but works fine with LTE?
  • Bryan Hom  

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  I just figured it out, it was actually my firewall on the wifi network that I was using to test. THanks
• C

  Ho to get CE Certification on a product containing a PyCom module ?
  • Cees_Meijer  

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• C

  L01 Antenna design
  • Cristi  

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  @Gijs Hi thank you for your reply. I intend to use the same antenna as the OEM module uses. According to 25450AT43B100 datasheet, the layout will be like the one below:
• R

  web/flask server
  wipy • • robmarkcole  

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  See https://github.com/jczic/MicroWebSrv2 for the updated version
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  RGB backlight LCD 20x4 with WiPy
  • cbourne  

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  @cbourne Some convoluted history which has indeed confused many people. The origins are explained in the post I linked to above. Note that IIRC you can use either the P or the G names when instantiating the pin. Personally I believe I've always used the P names.
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  Can I make a small wifi network with a Pycom
  • noah albrock  

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  thanks for the advice
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  Can I use the same code for GPy and WiPy?
  • lmerza  

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  I would have thought that would be ok. I run the same code on my devices that have an Expansion Board and the one that has a PyTrack. If the code finds a PyTrack board, then the unit will use it, otherwise it will adopt another role.
• J

  LoRa () using LoRa MAC vs LoRaWAN
  • João Rocheteau  

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  @jcaron Noted, thank you.
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  This topic is deleted!
  • João Rocheteau  

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  CE Certification
  • Cees_Meijer  

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  @Gijs OK> Just did that. Let's see if they can pick it up this time..;-)
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  LoRaWAN OTAA, ABP and LoRa MAC current profiles
  • João Rocheteau  

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  @jcaron Hello, thank you for your answer. About the last picture, these 5 seconds are the "RX1 delay" that happens right after a TX window. I was thinking it had to be 1 second for OTAA, but in my tests, I found it was 5 seconds (Both uplinks and downlink were verified by TTN), and making a quick search on the internet seems like is the default for it using TTN V3. I'll try to find a way to reduce it, seems like I have to use the TTN "CLI". Cheers.
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  LTE to Pybytes only?
  • Lawrence Schofield  

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  Currently, you can already use Pymakr online to update the micropython code, and use Pybytes to update the firmware. I believe both should work over LTE as well. I will add the feature you describe to the feature list, as sending custom downlink messages is currently not possible in the interface.
• 

  Protecting your code
  • Don-iot  

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  @jcaron Gotcha, we will perform new tests and get back. Thanks a lot.