Chain topology in ESP-MDF?

Snedig
Posts: 9
Joined: Sat Apr 04, 2020 3:18 pm

Chain topology in ESP-MDF?

Postby Snedig » Sat Apr 04, 2020 10:07 pm

Is chain topology available in ESP-MDF?

I have been using ESP-IDF mesh so far because I need the recently introduced chain mode for my application.

o.copleston
Posts: 9
Joined: Fri Aug 09, 2019 7:02 pm

Re: Chain topology in ESP-MDF?

Postby o.copleston » Mon Apr 06, 2020 12:33 pm

You can set the number of layers to 25 and max number of child nodes to 1 to effectively create a chain of 25 devices. I've succeeded in doing this, and got the better performance by also increasing the FreeRTOS tick rate to 1000Hz.

I believe Espressif have a version of the MDF which allows for more layers but it is not public yet. I eagerly await it's release :D

Snedig
Posts: 9
Joined: Sat Apr 04, 2020 3:18 pm

Re: Chain topology in ESP-MDF?

Postby Snedig » Mon Apr 06, 2020 12:58 pm

The reason for chain in my case is I need to support longer chains, up to maybe 150 nodes spanning a considerable distance.

ESP-IDF does this, but I have tried every which way to make it send/receive without a router, but with no luck - I was hoping I could do chain in ESP-MDF as that has a mesh example without a router.

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