Actions
Forum Thread Details
  • Replies 11 replies
  • Subscribers 302 subscribers
  • Views 2449 views
  • Users 0 members are here
Related
See a helpful answer?

Be sure to click 'more' and select 'suggest as answer'!

If you're the thread creator, be sure to click 'more' then 'Verify as Answer'!

Extra eyes on ESP32 Reflections ThingTwo main board?

frankcohen

Hi 14-ers, I'm seeking your help to review the third revision to the Reflections open-source hardware main board, codenamed ThingTwo. It's an ESP32-S3 in a 34 mm round double-sided board. This is my first-time to produce a hardware/software project. I'm excited and nervous. I would be glad for your eyes on the design: Identify mistakes, limitations, and poor design choices. And, make changes to improve it.

Schematic, layout, and BOM are at:

oshwlab.com/.../Reflections-Mainboard

The main repository is at github.com/.../ReflectionsOS.

I produced this to make mobile storytelling experiences. I am distributing the design under a free open-source GPL v3 software license.

Thanks for considering my ask.

-Frank

Parents

  • Hi,

    The silkscreen makes it hard to see what's going on.

    Some text is sub-millimeter (and may not be readable on the physical board) and some text is many millimeters high, and overlapping with other text and component outlines.

    You probably don't want to go smaller than ~0.9 mm text height (and ideally a bit larger, say 1mm or 1.2mm), i.e. aim for a bit larger, and if really necessary, drop down to ~0.9mm height..

    It is preferable to omit some component references if there's absolutely no way of fitting in the text, rather than overlapping with other text or outlines, or place the text elsewhere on the board and make it clear (through arrows or boxes for instance) which components it refers to.

    image

    image

  • in reply to shabaz

    Thanks! I appreciate your effort. I will clean-up the silkscreen. -Frank

Reply Children
No Data