Understanding ESP-IDF v4 and "No LAN"

All ESP32 boards running MicroPython.
Target audience: MicroPython users with an ESP32 board.
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timg11
Posts: 19
Joined: Sun Feb 14, 2021 10:51 pm

Understanding ESP-IDF v4 and "No LAN"

Post by timg11 » Sun May 02, 2021 5:57 pm

Following the guidance of this tutorial, I'm looking for the correct MicroPython firmware to load into the ESP32 development board.
I see the list on this page.

There is a list at the top for
Firmware with ESP-IDF v4.x
Firmware built with ESP-IDF v4.x, with support for BLE and PPP, but no LAN.
Below that
Firmware with ESP-IDF v3.x
Firmware built with ESP-IDF v3.x, with support for BLE, LAN and PPP. MicroPython v1.14 was the last version to support ESP-IDF v3.x.
Is it true that the newer IDF and firmware versions no longer support Wi-Fi?
Wireless LAN seems like an important capability of the ESP32, so I'm surprised it would be dropped. Or is there a different meaning of "no LAN" in the later versions?

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karfas
Posts: 193
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Location: Vienna, Austria

Re: Understanding ESP-IDF v4 and "No LAN"

Post by karfas » Sun May 02, 2021 6:30 pm

No LAN means no wired Lan, as you can see in viewtopic.php?f=18&t=9820&p=54986&hilit=Lan#p54986

I build the firmware myself (v1.15+) and don't have WLAN issues.
A few hours of debugging might save you from minutes of reading the documentation! :D
My repositories: https://github.com/karfas

timg11
Posts: 19
Joined: Sun Feb 14, 2021 10:51 pm

Re: Understanding ESP-IDF v4 and "No LAN"

Post by timg11 » Sun May 02, 2021 7:49 pm

Thank you! I was unaware that wired LAN was ever supported by ESP32.

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