hello guys,

I've been having big problems using a micro SD for several days, please help me, I've read everything I could online without finding compatible solutions to my situation.

If I'm using the simple Arduino example: "SD_Test" it works fine.
I checked the hardware several times even ...

Finally, I will not use the RTL8152B,
I will use Banana-pi ethernet signals directly, as in the link:
https://forum.banana-pi.org/t/bpi-m2-zero-default-supports-10-100-ethernet/4268

New design, according to your suggestions:
https://imgbox.com/GPU0BD4P

Did I get it right? that's enough?
<3 ...

Thank you very much @ESP_Sprite,
the documentation you shared with me was really very helpful!

I made an initial draft: on one hand I am using ETH contacts from BananaPI as in the following file:
https://forum.banana-pi.org/t/bpi-m2-zero-default-supports-10-100-ethernet/4268

On the other hand ...

Thank you very much @ESP_Sprite,
I will try to study your solution for future release, thank you very much.
At the moment I have a very close deadline, and I hope to be able to save firmware development time.

I'm planning the following hardware configuration:
ESP32 connected via SPI to the Wiznet ...

Good morning,
I would be designing a device, which has a microprocessor and a microcontroller.
I won't dwell on the reasons that make this configuration necessary, just know that the microprocessor will be a raspberry pi (zero) and the microcontroller an ESP32 WROVER-IE.

Raspberry will be able to ...