GPy

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  FiPy - connecting and sending data over CAT-M1
  Nov 4, 2019, 1:01 AM • securigy   Nov 4, 2019, 1:01 AM

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  High current consumption in deep sleep: 80 mA
  gpy deep sleep • Oct 2, 2018, 9:27 PM • averri   Nov 3, 2019, 10:14 PM

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  A Nov 3, 2019, 10:14 PM

  @averri said in High current consumption in deep sleep: 80 mA: OSError: the requested operation failed We just mitigated this through [1] by invoking lte.deinit() with the "reset" operation like lte.deinit(detach=False, reset=True) [1] https://github.com/hiveeyes/hiveeyes-micropython-firmware/commit/ec7c80e1219fb119c2881a0019cecdfad220f29f
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  Power consumption / wifi-information storage machine.deepsleep()
  deepsleep current storage wifiinformation • May 3, 2018, 12:57 PM • Andy_N.   Nov 3, 2019, 9:58 PM

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  A Nov 3, 2019, 9:58 PM

  @Andy_N said in Power consumption / wifi-information storage machine.deepsleep(): OSError: the requested operation failed We just mitigated this through [1] by invoking lte.deinit() with the "reset" operation like lte.deinit(detach=False, reset=True) [1] https://github.com/hiveeyes/hiveeyes-micropython-firmware/commit/ec7c80e1219fb119c2881a0019cecdfad220f29f
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  ram alternative to nvram?
  Nov 3, 2019, 5:32 AM • kjm   Nov 3, 2019, 5:04 PM

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  A Nov 3, 2019, 5:04 PM

  @robert-hh said in ram alternative to nvram?: Having the RAM disk mirrored to RTC memory is hardly usable, since the size is limited to 2048 byte. Thanks for your investigations revolving this and for letting us know about the outcome!
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  getaddrinfo in a thread
  thread gettaddrinfo • Oct 18, 2019, 4:20 AM • kjm   Nov 3, 2019, 1:13 AM

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  A Nov 3, 2019, 1:13 AM

  Just retyped this for the sake of improved readability. You might want to save it as /flash/lib/dnstest.py. import time import usocket import machine import _thread """ >>> import dnstest; dnstest.dns_lookup('google.com') 0 None 1 (2, 1, 0, '', ('172.217.18.14', 443)) 2 (2, 1, 0, '', ('172.217.18.14', 443)) 3 (2, 1, 0, '', ('172.217.18.14', 443)) 4 (2, 1, 0, '', ('172.217.18.14', 443)) """ response = None def run_getaddrinfo(host, port): global response response = usocket.getaddrinfo(host, port)[0] def dns_lookup(hostname, timeout=5): _thread.start_new_thread(run_getaddrinfo, (hostname, 443)) for i in range(timeout): print(i, response) machine.idle() time.sleep(1) print('Ready.') It works flawlessly over a WiFi connection, but LTE might well have its delicacies.
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  urequests timeouts
  urequests timeout • Jun 23, 2019, 12:54 AM • kjm   Nov 3, 2019, 12:41 AM

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  K Nov 3, 2019, 12:41 AM

  @andreas blobs are a bit beyond my skill set but ai=socket.getaddrinfo(host, 443) is using a socket so I reckon a 5s OSError socket timeout should prevent hangs if someone can figure out how to change the default timeout & recompile. My thread attempt was pretty simple, put getaddrinfo in a thread, wait for 5s in the main program then move on if the thread had not produced a DNS by then. Instead the main program stalled after 1 iteration of the 5s delay loop and waited for the thread.
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  1.20.1.r1 & adhoc wifi
  wifi adhoc • Nov 1, 2019, 6:11 AM • kjm   Nov 1, 2019, 8:55 AM

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  C Nov 1, 2019, 8:55 AM

  Because it is a bad idea to open a network by default? Together with the WiFi you open ftp and telnet. So you have full control over the machine, when you are able to use a search engine. I don't miss the times when scott tiger opened 80% of the oracle DBs. Beside the security issue most people doesn't want that theire microcontrollers use by default as much power as possible. They want to have a easy way to turn the features on and not to read a lot of manuals and community articles how to switch unwanted features off.
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  File system problems & solutions
  firmware file system littlefs fat • Oct 30, 2019, 12:04 AM • kjm   Nov 1, 2019, 12:46 AM

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  A Nov 1, 2019, 12:46 AM

  @kjm said in File system problems & solutions: the windows version of this CLI The CLI program should probably just be the same .exe file which is also the graphical thing. According to [1], its default location might be c:\Program Files (x86)\Pycom\Pycom Firmware Update\pycom-fwtool-cli.exe. [1] https://community.hiveeyes.org/t/setup-commandline-based-micropython-development-environment-on-linux-macos-and-windows/1639/15
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  1.20.1.r1 questions
  Oct 31, 2019, 7:06 AM • kjm   Oct 31, 2019, 9:41 PM

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  C Oct 31, 2019, 9:41 PM

  @kjm said in 1.20.1.r1 questions: How important is a full flash erase when upgrading a GPY to 1.20.1.r1? Is import os; os.fs.format('/flash') via Atom a full flash erase? No. This will make the files invisible which you see under /flash. It will not touch the firmware with the frozen modules, the NVS, RTC and so on.
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  1.20.1.r1
  exception gpy 1.20.1.r1 • Oct 31, 2019, 5:17 AM • kjm   Oct 31, 2019, 2:20 PM

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  Oct 31, 2019, 2:20 PM

  Can do do an "Erase All" operation? https://forum.pycom.io/topic/5318/flashing-v1-20-r1-bricks-my-lopy4
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  Sharing Variables Between Files
  Oct 24, 2019, 2:41 AM • Sn3akyP3t3   Oct 28, 2019, 4:46 AM

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  S Oct 28, 2019, 4:46 AM

  Well I haven't written much yet to share, but it doesn't make sense to me that the gpy device can assume that the mobile network is always available and with good signal strength. Also, boot.py appears to be where the network connection is established, but what if in the main.py I want to put the device to sleep for some duration and wake the mobile network connection under some conditions. I would need to refer to the mobile object declared in the boot.py hence the sharing variable need. This gpy unit will be traveling and the network signal strength drops off frequently because I live in a horrible rural area.. where networking life is miserable. I would assume the same idea of putting the device into sleep to save on juice would be applicable here, but if its declared in boot.py how would it be interacted with in main.py?
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  Improved Initialize LTE
  Oct 9, 2019, 5:18 PM • tlanier   Oct 26, 2019, 3:22 AM

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  K Oct 26, 2019, 3:22 AM

  You can check for modem crashes with mood=lte.send_at_cmd('at+cpin?').split('\r\n')[1]; print('mood =', mood) anything other than READY or +SYSSTART means the modem is crashed.
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  Terminating a thread after 5s
  thread timeout • Oct 14, 2019, 10:56 PM • kjm   Oct 26, 2019, 2:42 AM

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  K Oct 26, 2019, 2:42 AM

  @oligauc Have realised thread locking was not what we were after. What we actually want to do is put getaddrinfo in a thread so that if it the DNS lookup takes forever or fails the main program can move on. Unfortunately, this is not what happens, the main program pauses & waits for the thread. https://forum.pycom.io/topic/5295/getaddrinfo in-a-thread
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  No Access Point SSID Detected
  Oct 21, 2019, 6:47 AM • Sn3akyP3t3   Oct 23, 2019, 5:12 PM

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  A Oct 23, 2019, 5:12 PM

  @Sn3akyP3t3 said in No Access Point SSID Detected: What is the underlying reason for the need to do this? If I got this right, the reason is that the partition table is changed due to the new formatting mechanism of NVS introduced in IDF_v3.2 (1.20.1) So, I am figuring something in NVRAM might be crucial to get right which otherwise might magically break the WiFi and/or LoRa bearers. References https://forum.pycom.io/topic/5258/firmware-release-v1-20-1/2 https://forum.pycom.io/topic/5258/firmware-release-v1-20-1/21
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  Failed to connect (Error: Port is not open)
  Oct 21, 2019, 6:02 PM • Nebr   Oct 23, 2019, 9:21 AM

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  Oct 23, 2019, 9:21 AM

  @Nebr You could try to add yourself to the dialout group: sudo adduser <your name> dialout And then logout/login, or to be safe, reboot.
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  GPy Hardware Version
  Oct 15, 2019, 10:18 PM • tlanier   Oct 23, 2019, 7:32 AM

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  O Oct 23, 2019, 7:32 AM

  @tlanier The difference between the GPy 1.0 and 1.2 is the band support. With the latest firmware the following bands are supported: GPy 1.0 -> 3, 4, 12, 13, 20, 28 GPy 1.2 -> 1, 2, 3, 4, 5, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 66
• K

  sim card expiry
  gpy sim sequans • Oct 20, 2019, 10:30 PM • kjm   Oct 23, 2019, 7:27 AM

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  O Oct 23, 2019, 7:27 AM

  @kjm To check whether the LTE sim card is deactivated or not you need to contact the service provider.
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  Read the Sensor data through AWS cloud using GPY
  Oct 18, 2019, 7:44 AM • LindaJackson   Oct 23, 2019, 7:18 AM

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  O Oct 23, 2019, 7:18 AM

  @LindaJackson I am not familiar with the managed AWS servers. I just made a search and i think you have a couple of options. Option A: Create a string on the GPY with the information you want to send to the server like temperature, reading timestamp, crc, etc. Create a socket server on your AWS instance that parses the string with device information and push your data to a database. Option B: Install an MQTT server on the AWS instance Use the MQTT client on the Pycom device to send the data to the server
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  Upgraded LTE-M modem FW and now I can't see any bands besides band 13....
  Oct 22, 2019, 5:22 PM • noviniumJeef   Oct 22, 2019, 5:22 PM

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  LTE_WAKE and waking from network activity like SMS
  gpy gpio lte m1 sms wake • Oct 25, 2018, 6:06 PM • psychogenic   Oct 10, 2019, 1:31 PM

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  F Oct 10, 2019, 1:31 PM

  @dan Any updates on this issue? Seems like their hasn't been much change in the documentation.