FiPy

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  How to check if the FiPy LTE radio is damaged or not
  • devodog  

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  @devodog You're welcome. ;o) private repo link
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  FiPy used as WiFi Adapter?
  • DavidGW  

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  LTE dropped on Fipy
  • Jordan Reyes  

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  @Jordan-Reyes about 2-3 months
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  Deepsleep on batteries
  • tveito  

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  Lipo is not fully charged, so its at 3.6V. This figure shows how the current flow (mA) over time (s) looks like. The device is put into deeps sleep mode for 20s at about 12s (and again at 44s) then it takes around 5 seconds until power consumption is going down to about 20uS. I don't know what all the spikes are about.
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  Shared string between threadings
  • Kimlorentz  

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  Hi, When you start your thread you have to provide us a tupple of arg containing a reference to your hared string and a thread.lock object to synchronise your thread. Producer get lock, write gps data, release lock, wait new GPS data Customer get lock, read gps data , release lock, send to network, wait new data. Lock ensure your customer thread to not read when producer is currently writing the string.
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  Fipy, Lopy, Wipy Http Post?
  lopy fipy wipy • • Wolli01  

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  @Martinnn i have been trying to use urequests for HTTP POST and i always receive the error msg that the function accepts only 2 positional args while it gets 4 (or something along that line). have seen may msg in various fora about that error, but never found a turn-around that worked for me.
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  Pytrack and FiPy stalling with 18650 batteries
  • Edward Dimmack  

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  @jcaron Thank you for your advice. I will add the LED changes and see what happens. I didn't see anything after plugging it in or CTRL+C. I have a watchdog for when it is trying to attach to LTE but this seems to happen when it is just doing a record. I am not sure how to put the watchdog in. On the other forum post that I linked it said that the current can spike to 2.6A. If I have introduced some resistance (shunt etc.) could that be causing the voltage to drop to a point that it struggles to operate? At 3.7V wouldn't it only need to drop 0.4V? Wouldn't that be just 0.2 Ohms. It looks like when it is in the stall state it spikes periodically as if trying to run?
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  This topic is deleted!
  • GeirFrimann  

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  Need Help to connect NB-IOT 1nce / Germany
  • svonbentzel  

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  @svonbentzel The first script is the one I uss too for testing and it works. Only I have a different firmware version: Pycom MicroPython 1.20.0.rc10 [3911a85-dirty] on 2019-04-17; FiPy with ESP32 Edit: updated to: Pycom MicroPython 1.20.0.rc11 [55accd1-dirty] on 2019-05-24; FiPy with ESP32, same good state.
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  Guru Meditation Error & Magnetic Interference (EMI/RFI)
  fipy pytrack pysense guru meditation • • combaindeft  

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  Seems like this is related to WIFI in some way. When turning off WIFI (pycom.wifi_on_boot(False)) problem goes away. I am not using WIFI in any way, but maybe powerlines or WIFI accesspoint makes my W01 panic? This is the application I have been running during the test: from machine import Pin import utime LED.append(Pin('P3', mode=Pin.OUT)) while True: LED.value(1) utime.sleep_ms(100) LED.value(0) utime.sleep_ms(100) I havent been able to decode the core dumps, can I send them to someone for investigation? This forum didn´t allow me to post it here.
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  FiPy, Nb-IoT and Deepsleep
  • tuftec  

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  @jcaron Yes, I recall. That's still on my interest list. I have no real need for NBIot at the moment, so I just observe the behaviour, but did not try to optimize (yet).
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  FiPy and CAN Bus
  • PAIN  

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  Yes. https://docs.pycom.io/firmwareapi/pycom/machine/can.html
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  LTE antenna not working on board
  fipy lte • • misterlisty  

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  Found the issue, appears like the pcb regulator causing the issue.
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  How to determine Modem firmware version?
  fipy lte • • misterlisty  

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  @misterlisty >>> from network import LTE >>> lte=LTE() >>> print(lte.send_at_cmd('AT!="showver"')) SYSTEM VERSION ============== FIRMWARE VERSION Bootloader0 : 5.1.1.0 [39529] Bootloader1* : 6.0.0.0 [41019] Bootloader2 : 6.0.0.0 [40343] NV Info : 1.1,0,0 Software : 6.0.0.0 [41019] by robot-soft at 2018-12-13 21:41:15 UE : 6.0.0.0 COMPONENTS ZSP0 : 1.0.99-3171 ZSP1 : 1.0.98-3170 OK >>>
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  Unable to soft boot fipy
  • noahcoad  

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  @noahcoad Figured it out. It's not the grey 12, it's the teal colored "P12" pin. And the pin layout diagram points out right on it how to soft boot.
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  Can't Connect to My Devices in Ubuntu 18.04
  • Kodiak80  

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  Watchdog fails...
  watchdog fipy lora ttn • • misterlisty  

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  @misterlisty I did not fully analyze Pycom's implementation of the Watchdog, As far as I understand, the event they trigger is an interrupt, not reset. Which means, that in a full this interrupt fails too. Using the RTC it is possible to set up an WDT which pulls reset on expiry, but that one seems not to be used.
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  How do i know if am using NB-iot or Cat-m?
  lte • • misterlisty  

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  @misterlisty The way I understand it (correct me if I am wrong) is, that these are two very different LTE standards. LTE-M draws more current but is able to send data with 1 Mbit/s and 20ms latency whilst NB-IoT operates on 1000 times lower current on bands between 800 MHz-900MHz but can only send data with a lower bandwidth (250 Kbit/s) and a latency of 1s The main thing is availability in your country. Here in Germany only NB-IoT is available and LTE-M would need a whole new buildup of LTE infrastructure, NB-IoT works on the existing LTE network. So i guess you should check first, which standard is available in your country first.
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  Send SMS and Ctrl-Z
  sms • • misterlisty  

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  I UPDATED THE LTE MODEM AND ALL WENT WELL...is this something that should be notified to the members? I want aware i could update it.
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  lte passthrough?
  fipy lte • • misterlisty  

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  @jcaron Yes, you could make a simple passthrough script between UART0 and UART2 I think. That may however conflict with the normal LTA firmware, and you migth have to use WiPy firmware for the device, which ignores everything besides the ESP32. I do not know wheter is is fast enough, and you have to deal with the complete modem configuration. The physical UART pins to the modem seem accessible on FiPy only. On GPY, TX and RTS are connected internally.