Lorawan TTGO board - 'no module named ttn'

[matt42]

Hi all,
I am trying to connect a TTGO board to the Lorawan network, using this code - https://github.com/lemariva/uPyLoRaWAN/tree/LoRaWAN

I keep getting this error when running main.py:

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SX version: 18
Traceback (most recent call last):
  File "<stdin>", line 59, in <module>
  File "sx127x.py", line 207, in __init__
ImportError: no module named 'ttn'

Line 59 in main.py:

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lora = SX127x(device_spi, pins=device_pins, ttn_config=ttn_config)

Line 207 in sx127x.py:

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from ttn.ttn_au import TTN_FREQS

ttn_config.py and ttn_au.py are both there

I seem to be missing the ttn module but cannot find it for MP, the only reference I can find is for standard Python. Does anyone have any pointers?

Hardware:
https://www.banggood.com/LILYGO-TTGO-T- ... rehouse=CN

thanks in advance,

Matt

[T-Wilko]

Code: Select all

from ttn.ttn_au import TTN_FREQS

ttn_config.py and ttn_au.py are both there

I don't know exactly how you've stored your on-board files, but shouldn't the code be this?

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from ttn_au import TTN_FREQS

[T-Wilko]

No worries! Just out of curiosity, did you manage to get the TTGO board's LoRa functionality working?
I've been looking at getting my TTGO T-Beam's LoRa module functional sometime soon, and I also was eyeing off that repo that you first linked to.

[lemariva]

The main.py expects that you upload the folder structure to the board too. If you use VSCode and the PyMakr plugin (https://lemariva.com/blog/2018/12/micro ... ode-as-ide), this is done by default. If you uploaded every file on the root / folder, you need to remove the ttn. prefix from the imports. Last Sunday, I upgraded the repository and added a configuration for the M5Stack with the LoRa868 Module. Now, it should be easier to configure new boards.