Discussion

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  I2C Clock Stretching
  i2c clock stretch • • RicZeDuck  

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  @iannucci I'm curious if you ever got this working. The TI documentation is a hot mess. If you did, can you post up some example code, please? =)
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  How to build Micropython from Source incuding esp-idf components
  firmware source • • this.wiederkehr  

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  Refer to this thread for details on how Pycom builds the libraries: https://forum.pycom.io/topic/2835/is-it-possible-to-recompile-pycom-s-esp-idf-with-different-settings
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  Pymakr doesn't detect Lopy1 device after successful firmware update
  • bilou7  

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  Pyscan firmware update
  • Israel  

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  @israel There is currently no firmware update for the Pyscan. The version flashed during production is the latest one available.
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  LoRa NVRAM clear on restore issues
  lora lorawan deep sleep battery powered nvram • • jcaron  

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  @jcaron Thanks. Just to note this method works also for both a software reset AND powercycle.
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  Argument order of time.ticks_diff()
  ticksdiff v1.20.0rcx • • robert-hh  

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  ESP32 RAM cache issue when using both cores
  esp32 crash esp-idf dual core • • jcaron  

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  HTTP Server with WiFi in AP mode
  @http server @http client @ap mode @sta mode @wipy • • Milan  

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  @johan @thibault I've managed to do it finally. After I've set IP for HTTP server wlan.ifconfig(id=1, config=('192.168.4.10', '255.255.255.0', '192.168.4.1', '192.168.4.1')) i've tried to read IP address of HTTP Server and that was the problem, it's keep returning me '0.0.0.0'. IP address was set properly to '192.168.4.10' but function returns '0.0.0.0'. print('Network config:', wlan.ifconfig()) Network config: ('0.0.0.0', '0.0.0.0', '0.0.0.0', '0.0.0.0') Thank you for your help.
• U

  Query supported NB-IoT bands?
  gpy nb-iot band • • ubiq_01  

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  Orange Belgium Gpy
  gpy nbiot orange belgium • • hadjidgr  

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  Hello all, Finally I manage to make it works. The problem wasn't in the software, but hardware. I don't use a expansion board, I use a ttl converter like this one https://www.ebay.com/itm/5V-3-3V-FTDI-FT232RL-USB-to-TTL-Serial-Converter-Adapter-Module-Arduino-Mini-Hot/182736917146 With this converter 3.3V is not enough to power on stably the board, so, I used it in 5V mode, but it seem that 5v for serial communication is ok for the python REPL, but have problem when flashing the modem or use the LTE modem. Finally, I changed my design by using another 5v power source, and use the ttl converter un 3v3 mode with common ground. And then it just works fine ;) Thank you for you support
• 

  CRC handling in raw LoRa mode
  lora • • bmarkus  

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  Sorry for the year late grave-dig on this, I wanted this answer for myself and I landed on this post. Here we see a crcOn parameter in the driver https://github.com/pycom/pycom-micropython-sigfox/blob/4481a1c283be97640592ea2a0440830e336064de/drivers/sx127x/sx1276/sx1276.c#L364 Here we see the lora micropython module invoking these functions https://github.com/pycom/pycom-micropython-sigfox/blob/4481a1c283be97640592ea2a0440830e336064de/esp32/mods/modlora.c#L1093-L1101 The arguments and parameters formatted: RadioModems_t modem = MODEM_LORA, uint32_t bandwidth = init_data->bandwidth, uint32_t datarate = init_data->sf, uint8_t coderate = init_data->coding_rate, uint32_t bandwidthAfc = 0, uint16_t preambleLen = init_data->preamble, uint16_t symbTimeout = symbol_to, bool fixLen = LORA_FIX_LENGTH_PAYLOAD_OFF, uint8_t payloadLen = 0, bool crcOn = true, <-- CRC enabled. bool freqHopOn = 0, uint8_t hopPeriod = 0, bool iqInverted = init_data->rxiq, bool rxContinuous = true This is the same for both tx and rx. This setup function is invoked when in LORA (Raw) mode: https://github.com/pycom/pycom-micropython-sigfox/blob/4481a1c283be97640592ea2a0440830e336064de/esp32/mods/modlora.c#L821 TL;DR; Yes, CRC is enabled internally.
• M

  Stop code execution
  codeing • • misterlisty  

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  @misterlisty Did you try Ctrl-C?
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  frozen AWS MQTT
  mqtt aws mqtt • • Martinnn  

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  @martinnn said in frozen AWS MQTT: @robertkeizer What do you mean by 'relative path'? The import statement is from MQTTLib import AWSIoTMQTTClient How do you point this to another source? I added my own copy of the library in the directory AWSIoTPythonSDK, and then was able to use from AWSIoTPythonSDK.MQTTLib import AWSIoTMQTTShadowClient or similar. Effectively just add your own copy of the library and then use a from xx import; As long as you don't use the exact same name as the default one, and the directory exists in /lib you should be able to use another version.
• J

  Zerynth r2.0.11 released with support for Pycom and Adafruit boards
  pycom branding • • Jasonpaul  

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  G01 power consumption
  deepsleep g01 • • danielm  

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  @danielm No. I just have development modules.
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  ticks_xx wrap-around period
  timer utime ticksxx • • robert-hh  

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• 

  Confusing development process
  micropython version management • • robert-hh  

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  @iwahdan There is another branch now called stable_update. I understand that this is the trial update to 1.18.1.rx. I left a note there on one of the newer commits. Having a note somewhere about the intention of each branch would be helpful.
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  Persistent event logging
  logging persistence • • danielm  

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  @paul-thornton Thank's Paul, anyway it would be helpful to implement NVS support for string and blob objects. I think this is already available in the IDF. What's your opinion @iwahdan ?
• S

  Bluetooth device name unable to resolve in Pycom
  wipy wipy 2.0 • • sailaja  

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  Using manufacturer data, we can get the proper data from the sensor. mfg_data = bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_MANUFACTURER_DATA) advData = binascii.hexlify(mfg_data)
• O

  Failed to start STP mode!
  gpy gpy nbiot sqnsupgrade ubuntu • • oyarzo-pablo  

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  Uploaded the diff and uploader files to the Gpy with the Pymakr and did the upgrade using the steps of the sd card but changing each path to flash.