Discussion

• F

  How to create firmware image
  • f2f  

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• E

  How to decode CORE DUMP
  • ElinhohHD  

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• E

  This topic is deleted!
  • ElinhohHD  

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• C

  Adding modules to custom firmware
  • C Reese  

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  @robert-hh Thanks!
• R

  FiPy LTE Firmware upgrade fails
  • railmonitor  

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• P

  Lopy 4 and Pytrack does not wake up from the sleep.
  • pytrackuser1  

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  hi @pytrackuser1 and @jcaron I've run an similar experiment, on Pysense, for some 12-14 hours and it didn't failed (sleep cycles were 20sec). I've used a 2Ah battery, and recharge it once during the experiment. I've met such situation, but the battery was weak, 3.6V showing on pysense.read_battery_voltage(), indeed it did not wake up. You could log into NVS last value of: the battery voltage, number(count) of restart, time from RTC, maybe we notice a pattern. Computer could go into in standby, and minimise USB power source; but you said you've used a power adapter... One question, after the block, you just cycle power and it works fine, isn't it? OK, I will try to monitor power usage, maybe I can detect something. To disable Pybytes: we’ve just released v1.20.2.rc3, which supports the method pycom.pybytes_on_boot(False) for the previous versions, there are 2 commands: >>> pybytes.smart_config(False) >>> pybytes.set_config("pybytes_autostart","false")
• H

  Problem on updating Expansion board V3.1
  • hiyasbie  

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  @hiyasbie quite complex answer
• L

  Pymesh collision detection
  • lorenz.bornholdt  

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  Thank you, that has helped me!
• S

  Issue with DFU firmware update using Expansion board 3.0r
  firmware update dfu-util • • skippy  

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  @skippy https://forum.pycom.io/topic/5182/problem-on-updating-expansion-board-v3-1/6
• K

  Can't read nfc chip with pyscan
  pyscan nfc reading errors • • kubohirner  

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• B

  Syncing the clocks of Lora/Pymeshed Devices
  • boda  

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  @oligauc Thank you!
• D

  G01 power consumption
  deepsleep g01 • • danielm  

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  Dear Robert, @robert-hh said in G01 power consumption: Without LTE init, the current drops to 20µA too. Are you saying that the LTE shutdown magic by invoking lte.deinit() referenced many times in the forum will not be required at all? Our scenario is that we are currently not using the LTE modem of the FiPy and want to get power consumption as low as possible. We are humbly asking for your experience here, especially with the latest firmware releases. Also, I just stumbled over lte.send_at_cmd('AT!="powerOff"'), which also does not sound that bad ;]. Maybe this will shut down the modem in the quickest way possible without going through all procedures of the regular lte.deinit(). Thanks already for taking the time to answer our question on this evergreen topic. With kind regards, Andreas.
• K

  Wifi + Pin() + I2C Closes Wifi connection?
  • KenM  

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  @KenM So easy. Sometimes you have to know for sure that there is a big in the code, to be able to see it.
• S

  Setting LoRa region in firmware vs. code - a difference?
  • sebastian.bttrch  

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  @sebastian-bttrch Please can you specify what differences you are noticing ?
• B

  SigFox LoRa conflicts ?
  • bca  

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  @bca Please can you specify the issues you are experiencing ? Are you using plain lora or Lorawan ?
• A

  ADC conversion values
  lopy4 adc sensor adc accuracy • • Alephus  

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  @Alephus Loyp Just scale them properly. You may also take the raw ADC readings and do the conversion yourself. But I would add a voltage divider between you gas sensor and the ADC input, such that the input never gets a value > 3.3V. That divider could for instance constist of a 10k (between ADC Input and GND) and 4.7 K (between ADC input and sensor output) resistor, with an additional 10nF capacitor between ADC input and GND. The scaling factor would then be 1.47 (if you read 1V, the actual output value is 1.47 V).
• T

  Convert image to ASCII on raspberry pi
  • tam  

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  @robert-hh thank you for your response. Actually, i intend to have text based ASCII from image. I also want to do this conversion in the pycom lopy 4 with very low resolution image file(Your opinion on whether lopy 4 can support). Meanwhile, I'm trying that in Raspi and I will seek your help. Thank you in advance. regards senthamil
• S

  How to generate .bin file for custom firmware ?
  • soibac35  

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  @soibac35 Follow carefully the README.md file in the repository. Building is best done one a Linux system.
• S

  This topic is deleted!
  • soibac35  

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• S

  is it a good idea to repeatedly go deepsleep then wake up ?
  • soibac35  

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  Thanks for replying. I just do some testing and it is true that in some random time, the device didnt go to deepsleep but rather skip that step entirely. What i did to test this is running script where it report will to server within 1 second non stop unless it go to machine.deepsleep step. Base on report, it skip deepsleep stage twice in the last few hours. Do you know or anyone know where i can find more about this problem ? I have been looking in the forum but not much