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Thread with nrf52840dongle without using the ot-ctl c

Hey,
I was trying to create a python application on a linux environment to send UDP messages over thread. Do I need to use the ot-ctl cli to send udp messages? I tried to communicate using netcat and this did not work. Opening a socket via the ot-ctl cli and sending the same message however worked perfect, but I prefer to not use this cli at all. If communicating over thread without the cli is possible, does any python example exist?

I currently have 2 linux devices with an nrf52840dongle inserted, running an OpenThread daemon.

0 user106736 over 4 years ago

Hi

We have no direct IP to thread functionality on our chips. So you have two alternatives.

1. Use the serial interface to control the chip. This can be done either using ot-ctl or spinel for this.

2. If you connect the thread network to the internet using a OpenThread Border Router. In this case, the devices can bet IPv6 addresses, which you can ping over the net.
EDIT: This alternative is not as simple as it sounds, as it requires the router to allow the Border Router to use IP addresses for all of you Thread devices. See OpenThread on IPv6 addressing for the concepts of Thread Addressing.

Does this answer your question?

Regards,
Sigurd Hellesvik
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0 user115603 over 4 years ago in reply to user106736

Can I only ping the devices with the 2nd option or can I also send TCP/UDP messages?
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0 user106736 over 4 years ago in reply to user115603

Hi

Yes, if you have firmware running on the Thread device to handle these messsages. For examples from the CLI, see https://github.com/openthread/openthread/blob/main/src/cli/README.md.

Did you see the edit in my previous answer?

Regards,
Sigurd Hellesvik
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0 user115603 over 3 years ago in reply to user106736

Hey,

I saw your update, I will look into that if I am certain that this will fit my implementation.
You gave examples form the CLI for the thread devices. does this mean I still have to send and receive messages through the CLI?
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0 user106736 over 3 years ago in reply to user115603

Hi

You can write custom firmware for the chip to handle UDP and/or TCP messages.
I linked the CLI, since it has functionality for doing this, and might be a useful for testing your UDP/TCP communication or get insipration on how to set up the UDP/TCP communication.

Regards,
Sigurd Hellesvik
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