Cyble5 from Itron with LoraWan protocol

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1

Hi!

My water company recently installed a new specification of the Itron Cyble Water meter (Cyble5):

This new device can send information via LoraWan protocol, so that's why I purchased a Ttgo-Esp32-Lora to try to read the info from the sensor, as the water company workers do from time to time by walking around the neighborhood.

I followed this tutorial to have this Ttgo device at least "listening" for something:

And what I have as an answer from time to time is:

17:16:05.702 -> Received packet T[�s�ЂB�9^bR�#�I��e� a`�4���^� G6�� �+�u�V4f�}%�Yq"mO��l��r� ��� D�S��ڇ���N@j9���H�����~�e�G���0�

17:16:05.767 -> �}���(`�w/��m�&�u+�

17:16:05.768 -> r6C��܈��,He���q�;��֞~�k�'�LX��u}�Bh2,(��\�վG�ӵ�LNr2Ǵ�4��I with RSSI -110

17:33:09.060 -> Received packet zmc�Z����KQ���;�`H���e�Ԋ�CŪ.� with RSSI -114

17:35:35.891 -> Received packet sX�9�ԾP(��2l��z"E�u with RSSI -114

19:22:05.349 -> Received packet �V��,��4��6�]"6�/ ]� \�, ����tW��Ԣ)<>W��'lߗ�oS�#� with RSSI -112

I didn't know LoraWan protocol until now so I'm not even sure of I can be able to read this information from my water meter, and also to deferentiate which information is sending. All of my neighbors around the area have this smart meter so how could I only listen from my device? I see a serial number attached to the device but not sure how to use that.

Any help around this issue would be greatly appreciated.

Thanks!

2

It looks like numeric variables are sent. Integers, floats...

3

Data over LoRaWAN is encrypted - see lorawan security
I doubt if you can listen to the communications

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4

Okey. But the decryption must be made upon receiving the character. In the final read giving Your code a character, it ought to be "ready for use".
What do You think?

5

LoRaWAN packets are encrypted, you would need the keys used to generate them to make sense of the data in the packet.

In addition the packets received could simply be phantom packets produced by the LoRa device itself.

Or packets from some other device\application from some number of kilometers away.

And of course LoRaWAN is typically multichannel, so your single channel TTGO LoRa32 may never be on the same frequency as your particular meter.

6

And its always possible that LoRaWAN was specifically designed to prevent eavesdropping ................

7

Thank you for all your answers! I was afraid the communication may be encrypted... but it was worth asking... It's true that all packages I'm reading have a RSSI of -11X so probably the device sending those packages are far away.

8

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