Feel I should also call out Freyr’s videos for anyone who has missed them - continuity of splines [2] and the beauty of Bézier curves [3]

[1] https://gadgetoid.github.io/asdf

[2] https://youtu.be/jvPPXbo87ds

[3] https://youtu.be/aVwxzDHniEw

Is this related to the breach that SendGrid said didn’t happen? I set my account up in 2021 for reasons I don’t recall and it’s since been deleted/deactivated by them.

I made a basic one for the RP2350- https://rp2350b.pinout.xyz/

Though STM32Cube has a very different approach, handles lots of mutually exclusive features and peripherals and a bunch of extra stuff for controlling code gen IIRC.

There are a surprising number of pitfalls, since there's always some complexity most top-level diagrams don't reveal, but I feel is necessary to capture/avoid duplication of work- specifically, I mean documenting the pinout of the chip (RP2350, ATMEGA32U4, STM32H750, RP2 etc) and then translating that to a board layout.

I think the closest I've come is a prototype Pinout rewrite which started with chip [1] and board [2] JSON files.

Then, as you explore, there's the whole problem of presenting this information. I chose to capture information such as header type, orientation and pin-count but sometimes a header is too small (or there are too many headers) to document in-band so the kinda skeuomorphic presentation of the Pico pinouts doesn't work.

Perhaps that's where something like the minimap [3] from my "advanced" RP2350A pinout comes in.

Having a small representation of the board with the pin headers separate could work. It's been a while, IIRC a Fritzing [4] part involved creating a vector graphic of a part and naming the individual pin objects such that they could be mapped to a table of signals. I think SVG is compatible with this approach but... yeah, requiring people to create detailed board artwork (as good as it looks) is a stretch. The same could work for a good photo and just a table of offsets, as you suggest.

TLDR: This is a great idea and something I've wanted to do for ages. But I don't think I've got enough breadth of experience to do it alone.

1. https://github.com/pinout-xyz/pinout-2024/blob/main/chips/bc... 2. https://github.com/pinout-xyz/pinout-2024/blob/main/boards/r... 3. https://rp2350a.pinout.xyz

(very beta website)

https://esp32c5.pinout.xyz

Will be an interesting experiment!

And code gen is something I'm looking at with the RP2350A pinout [2] where the JSON export would allow someone to plug it into any tool they like. (KiCAD symbol gen, C/MicroPython init code, etc)

It's difficult to strike a balance between features/minimalism but I'm increasingly drawn to the idea of a full (STM32Cube-like if you're familiar with it) configurator for Pico/RP2 based boards.

1. https://pi.pinout.xyz 2. https://rp2350a.pinout.xyz

I have definitely struggled with making the Pinout spinoffs discoverable- the OG site had ten plus years to bed in.

I’m currently failing to not build STM32Cube for Pico though, the idea keeps gnawing away at me. There are some idiosyncrasies that my micro site doesn’t quite capture. Though perhaps it could.

1. https://news.ycombinator.com/item?id=44520091

Pico never quite has a function where it’s needed.

ASCII-only really cuts to the meat of the problem though.

This simple one-page website brings the RP2350A's pins, alt functions and notes together into a single table.

You can click pin functions to mark the ones you're using in a design and view them on the QFN-60 minimap- useful for routing or finding the right pins to scope.

I have more features planned- such as JSON export (so you can run your own code-gen or symbol gen tools on pin configurations) and minimap rotation.

This is basically pico2.pinout.xyz for engineers.

Comments URL: https://news.ycombinator.com/item?id=44520091

Points: 7

# Comments: 0

Recently I've updated these with a new "Upside-down" view to complement the rear view, giving a pinout in the right orientation to match your project.

The Pico sites are all hand-coded single HTML pages with supporting CSS and minimal JS. They are set up to optionally install as a "Desktop" web app. They also degrade into a somewhat usable table in lieu of CSS and use vector graphics (for the board itself) to be viewable and printable at any size.

Finally, hidden behind "Advanced" is a pinout of the test pads and special function pins!

[1] - https://web.archive.org/web/20130505194305/pi.gadgetoid.com/... [2] - https://pico.pinout.xyz [3] - https://pico2.pinout.xyz

Comments URL: https://news.ycombinator.com/item?id=44491709

Points: 150

# Comments: 35

In our case it was the only choice. I’d say we’d use UART now but the RP2350 can pretty much do it all in one chip.

https://github.com/pimoroni/picovision/blob/main/drivers/dv_...

(Of course if you’ve got the pins, you should use ‘em!)

1. https://github.com/isoxliis/firmware-micropython/blob/72687e...

Comments URL: https://news.ycombinator.com/item?id=39721031

Points: 2

# Comments: 0