board: add wemos-lolin32-lite

[maximeborges]

Add Wemos Lolin32 lite which uses a ESP32-PICO-D4 MCU and fits on breadboards with a free row on each side:

[maximeborges]

@urish any news? There are a bunch of other PRs that are also stuck.
It would be nice to have another way of supporting custom boards than having to wait for it to be merged here.
The current solution of manually loading a board from wokwi requires you to do that every single time, which is, well, not great at all.

[urish]

Hi, we're working on a better way for submitting custom boards, which will reduce the amount of work it takes, and the back-and-forth. Hoping to launch it later this year.

[urish]

Also, thank you for your contribution. One reason we haven't merged it is that big size of the SVG file, we only accept SVG files up to 100kb per the guidelines, and the SVG file here is 861 KB.

So far, our experience has been that people haven't been following the guidelines, and it takes several iterations of back-and-forth until the board is in a good shape to merge. That's the motivation behind working on a better way for contributing custom boards.

[maximeborges]

Good catch, I totally missed this guideline file. I had a PNG photo of the board in a hidden layer, removed now.
I think it would make more sense to have those guidelines as a markdown file in the repo, what do you think?
Also I can propose a simple CI check for the SVG so people would get an immediate feedback that there is something wrong, so you don't have to spend time manually checking that.

[urish]

Thanks. I agree that more automation can help in flagging issues early, but OTOH we don't get enough contributions ATM to justify the work involved. I merged the new board, including a fix to the pinout which enabled serial (UART) output: cd3a6a3

[Koepel]

The board is running in Wokwi: https://wokwi.com/projects/436367058279643137
But I wonder if it is still available.
I have two LOLIN boards, but the website seems to have not changed since I bought them: https://www.wemos.cc/en/
It is mentioned here: https://www.espboards.dev/esp32/lolin32-lite/
A similar board can be bought, but I would expect the brand name "Wemos" or "LOLIN" on the board when it is a genuine board.

[maximeborges]

A similar board can be bought, but I would expect the brand name "Wemos" or "LOLIN" on the board when it is a genuine board.

I wouldn't expect any of those chinese branded boards to be any different from their clones. I've bought tens of them in the past few years, just getting the cheapest ones by searching "lolin32 lite" on aliexpress and haven't seen a single difference or had any issue with them.
I'd just recommend avoiding the USB-C ones, sometimes the manufacturer just swapped the micro USB connector with a USB-C one without adding the CC resistors, which would make it work only with USB-A to C cables.