Orange Belgium Gpy

[peterv]

Still works for me on 1.20.0.rc4/NB-IOT firmware 40343:

>>> import sqnsupgrade
>>> sqnsupgrade.info()
<<< Welcome to the SQN3330 firmware updater [1.2.1] >>>
>>> FiPy with firmware version 1.20.0.rc4
Your modem is in application mode. Here is the current version:
UE6.0.0.0
LR6.0.0.0-40343

and

>>> from network import LTE
>>> lte = LTE()
>>> lte.send_at_cmd('AT+CGDCONT=1,"IP","nbiot.iot"')
'\r\nOK\r\n'
>>> lte.attach(band=20)
>>> lte.isattached()
False
>>> lte.isattached()
True
>>> lte.connect()
>>> lte.isconnected()
True

Still no DNS:

>>> socket.getaddrinfo('www.pycom.io', 80)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
OSError: -202

[Lonefish]

@mp My solution was making sure the SIM cards are still activated. That was it, the code just works. I suspect you have the antenna connected?

I have to say tho, the first time it seems to take a while to connect (like a few minutes even) but after that it just 'flies' through. Have you let it sit for a while? Like during lunch?

EDIT: Have you updated the firmware to the latest version?

[johanbrichau]

@mp I have my Gpy connecting to Orange NB-IoT. I’m using latest dev firmware and modem firmware. See https://github.com/jbrichau/TrackingPrototype/blob/b3c5ec0cd3a7cd434fb6cec64c85c206d8d3277e/Device/main.py#L75 for my code.

What is the firmware you are using?

[mp]

Hello all,
I use 40343, but it was painful to flash the firmware, is it possible that the firmware is corrupted? If upgrade success the firmware have to be ok?

Yes i let it connected many minutes, and the antenna is connected. I dont use this anthena https://pycom.io/product/lte-m-antenna-kit/ but another nbiot antena (https://shop.sodaq.com/sodaq-sara-ubee-n211.html)
I will retry this Sunday

Thank you for you help

[mp]

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