LAUNCHXL-CC1352R1: Have collector automatically open network

Greg Bredthauer

I'm experimenting with a pair of LaunchPads running the collector and sensor demos. For real world use, I want the collector to automatically start the network on power up (which can be done using CONFIG_AUTO_START), but would also like it to automatically allow sensors to join the network. Likewise, I want the sensors to power up and immediately join the network. What are the necessary and sufficient steps to accomplish this? I haven't been able to tell from the documentation when it would be safe to call Csf_openNwk() on the collector side, for example.

Thanks!

over 2 years ago

0 YiKai Chen over 2 years ago

Guru 735455 points

It's not safe to always open network to allow new device to join. I would suggest you to implement user interface to do this in specific duration, such as a join button pressed to allow new device to join for a while, and disable open network right after this. For any device that has joined network, it will keep the network information and network key, and it's no problem for such devices to rejoin after power cycle.

0 Greg Bredthauer over 2 years ago in reply to YiKai Chen

Prodigy 100 points

Hmm. I thought having a unique MAC pre-shared key would be sufficient security.

0 Mario_7 over 2 years ago in reply to Greg Bredthauer

Intellectual 290 points

Hi, I'm also interested in this topic. Is it possible to open the network automatically?

0 YiKai Chen over 2 years ago in reply to Greg Bredthauer

Guru 735455 points

If you insist to do this, yes, you can use Csf_openNwk to open network for device to join.

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LAUNCHXL-CC1352R1: Have collector automatically open network