Dual FOC ESC based on ESP32-S3FN8

StefanH
Posts: 3
Joined: Wed Apr 06, 2022 6:41 am

Dual FOC ESC based on ESP32-S3FN8

Postby StefanH » Tue May 10, 2022 10:06 am

I'd love to have some feedback on a dual channel (motor) ESC based on the ESP32-S3FN8. The board is pretty small and should hold its own at up to approx 30A continuous input current. It's meant for for 6S (25V) setups, but should work from approx 3S.

Did I miss anything on the ESP32-S3 side of things?

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The board looks like this:

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ESP_Sprite
Posts: 9020
Joined: Thu Nov 26, 2015 4:08 am

Re: Dual FOC ESC based on ESP32-S3FN8

Postby ESP_Sprite » Wed May 11, 2022 1:05 am

That looks very nice! Note that I don't think there is a requirement to run VDDA from a different power supply (but I'm sure it's no issue to do so anyway).

StefanH
Posts: 3
Joined: Wed Apr 06, 2022 6:41 am

Re: Dual FOC ESC based on ESP32-S3FN8

Postby StefanH » Wed May 11, 2022 6:26 am

Thanks!

I wanted VDDA to have the same supply (and reference?) as the current amps and ~1.6-1.7V '0A' voltage. Given the board layout (the supply IC is close to the ESP) there wasn't much downside in running the extra traces imho.

I left LNA_IN floating, would it have been better to tie it to ground?

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