FiPy

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  NB-IoT | More details required
  • bitvijays  

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  Hi, to answer your questions: Im not too sure about iperf3 and the ESP32 and LTE, but there is probably something out there. According to the modem datasheet – LTE UE category M1 (1.4 MHz bandwidth) up to 300 kbps DL/375 kbps UL in HD-FDD, and 1 Mbps in FD-FDD – LTE UE category NB1 (200 kHz bandwidth) up to 40 kbps DL/55 kbps UL in HD-FDD You are able to use a socket to send data, however connections through a Pycom Vodafone simcard are limited as discussed before From what Ive seen a lot is possible here. You can send strings, integers, floats etc. Not sure about the size limit. You are also able to send custom signals with formats etc. send_signal uses MQTT in the background to mqtt.pybyts.pycom.io
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  Set spreading factor
  • lloureiro  

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  @robert-hh Hope you are doing well and had a good weekend. Thank you for your support. In one of the reply, you mentioned that "the data rates for join should be handled automatic. It starts with the highest data rate (lowest sf), and if that fails, the data rate is lowered until eventually a join happens. Join always succeeds here, so it is hard test it." Is there a way to test this? like debug messages? The scenario being near my house, there are no TTN Gateway, so, i bought a Indoor gateway (which works fine). So, I tested sending data using different spreading factor using s.setsockopt(socket.SOL_LORA, socket.SO_DR, data_rate). When I set it to SF12BW125, the gateway far away was also able to receive the message. I was wondering if there's a way to set SF12 for the join request, so that the far gateway gets my Join request. (avoiding buying of a Indoor gateway) and increasing the reach-ability. Kind regards, bitvijays
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  ble service uuid not found!
  • furkan7852  

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  Writing NMEA messages to L76 GPS chip
  • WilkinsSq  

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  Hi @jcaron Ok, thanks very much! I've tried that new format but I'm not sure what to expect from the chip by means of response. The specific command PMTK103 shouldn't warrant an acknowledgment, so I'm sending PMTK605 which is a command to query the firmware release info and see if I get a response to confirm this whole thing is working. L76GNSS.dump_nmea() isn't showing the response message I'd expect (PMTK705) after writing PMTK605 to the L76 chip. Is there a better way to see responses from the L76? Or do I first have to configure it to send acknowledgments? Regards WilkinsSq
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  Fipy LTE attached after a short time drop
  • AlganEren  

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  @Gijs firmware version is here I tried these commands respectively: lte.attach(band=20,apn="internet") lte.attach(band=20,apn="internet.m2m") lte.attach(band=20) lte.attach(apn="internet") lte.attach(apn="internet.m2m") I activate my simcard before and check it. I also call turkcell and I confirmed they told me apn is internet. fsm output goes like this scanning-syncing-camping-camped-connecting-connected- disconnecting-camped-camping-syncing-camping after a while stuck in scanning csq output changes between 16,99-26,99. Thank you so much for all reply! I still couldn't solve the problem. Do you have any other ideas.
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  This topic is deleted!
  • bitvijays  

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  FiPy checking who it is connected to BLE
  ble mobile app • • kendrik-wah  

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  Trouble initiating pymesh on FiPy
  • Maciek  

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  Ok, it seems I found the solution, which was just downgrading the firmware to 1.20.0rc10. However, now I am experiencing the apparently known issue of Wi-Fi not working on legacy firmware (the WLAN.scan() function returns OSError: Scan operation failed) So - does anyone know which version of firmware has no issues with both pymesh and Wi-Fi connection?
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  FiPy + PyTrack (any extra peripherals available, ex UART + I2C)
  • soopieng  

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  Hi, You are indeed correct. Now it is of course possible to manually solder wires to the specified communication ports, as i know they are there, just not exposed. You can check the datasheet of the Fipy for the pins. I know the Pytrack uses UART0 and I2C to communicate, so the other ones are still open. (It is also possible to change the pin functions) https://docs.pycom.io/datasheets/development/fipy/ The Pytrack 2.0 X is a little more flexible with external antenna connector and sensor port, where you can attach additional sensors (like for example a water quality sensor). The sensors will be out soon, but I dont think there is a water quality sensor in the set, so you'll have to think of your own solution there.
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  This topic is deleted!
  • WilkinsSq  

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  Date and time in ISO-8601 format
  • bushbavarian  

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  Works like a charm. Thank you, Robert!
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  What is the realistic range of LoRaWAN?
  • maqbool  

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  @jcaron said in What is the realistic range of LoRaWAN?: So if you have both antennas exactly vertical and exactly at the same height, you do get the 15 dB gain. But if the one antenna is even slightly higher or lower than the other, the gain very quickly drops, and even becomes negative in some directions. Here's an example (different frequency, but the principle is most certainly the same): Thanks for the reply, I did not know such antennas actually existed! Generally its cheap Alixpress crap that oversells itself and actually has worse SWR than a piece of wire for the specified frequency range. Indeed you have to be wary of the antenna heights with such narrow beams
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  LoRa and Sigfox RSSI
  • bitvijays  

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  @jcaron Ah yes, totally forgot about the feature.. Thanks for correcting me! Indeed it depends on your country's duty cycle limit how much airtime you get and whether it is viable to send the acknowledgements. Generally, LoRa applications are okay with a few dropped packets. Do not make someones life depend on a LoRa packet arriving ;)
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  Cannot get BW500 to work on my AU915 version of FiPy
  • smbunn64  

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  Hi, according to LoraWAN regional parameters https://lora-alliance.org/sites/default/files/2018-05/lorawan_regional_parameters_v1.0.2_final_1944_1.pdf you can use SF7 BW500 by setting DR_13 so you may try s.setsockopt(socket.SOL_LORA, socket.SO_DR, 13) Most of lorawan post talk about DR0 to DR5 as it's the only available in E868 i guess
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  Band vs Throughput in LTE-M1
  • securigy  

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  @securigy Hope you are doing well. Just curious, were you able to get the bandwidth and throughput of LTE?
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  Downlink status of Sigfox Backend
  • WilkinsSq  

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  @bitvijays Excellent - That clears it up!
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  Fipy-Pysense Bluetooth
  • AlganEren  

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  Hi, Please take a look at this example, I believe you have used the callback incorrectly: https://docs.pycom.io/firmwareapi/pycom/network/bluetooth/#bluetoothevents()
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  FiPy Sim Cards Using
  • AlganEren  

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  https://www.ebay.com.au/i/132789144811?chn=ps&norover=1&mkevt=1&mkrid=705-139619-5960-0&mkcid=2&itemid=132789144811&targetid=926982161932&device=c&mktype=pla&googleloc=9071661&poi=&campaignid=9772799667&mkgroupid=100117148096&rlsatarget=pla-926982161932&abcId=578876&merchantid=7364522&gclid=Cj0KCQjwjer4BRCZARIsABK4QeWfvsrebZhl1Pu0y4LsUBgXZxOeJYAFGjxayjYHf0I6GXuWRLnfzNAaAtaNEALw_wcB ?
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  Connect to LTE
  • tttadam  

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  Fipy freezes after two or three days. Using pytrack, Sigfox and DeepSleep
  • Erick Falcon  

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  I thought of something, now Im not sure this could be it, but its worth trying: Try closing the socket after sending the data using s.close(), I believe there is no way to de-init the SigFox radio though. Update to the latest firmware And indeed disable pybytes if it is enabled like @robert-hh suggested. It would indeed be interesting to see the log of a bad case. Best