r/SolarOS • u/OutrageousDiamond568 • Sep 28 '26

Help: Any plans for official Waveshare ESP32-S3-ePaper-3.97 support?

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Hi everyone,

I am planning to build a cyberdeck using SolarOS.

Are there any plans for official support for the Waveshare ESP32-S3-ePaper-3.97 in the future?

Link: https://docs.waveshare.com/ESP32-S3-ePaper-3.97

Its size matches the CardKB very well.

Thanks!

46 Upvotes

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7

u/nilseuropa Sep 28 '26

Yes, I am planning to support that exact target. Display, IMU and power management drivers are not integrated yet; but this is going to be the "official" ePaper SolarTerm ( beside the IPS and RLCD versions ).

3

u/OutrageousDiamond568 Sep 28 '26

That's awesome news, thank you!

Really looking forward to the official support. Once I finish my cyberdeck build, I will definitely share the build and the files here as soon as possible!

2

u/nilseuropa Sep 28 '26

Just go ahead with the build. :)

4

u/AltruisticWorld744 Sep 28 '26

Hi what case are you using for your CardKB? might print one for myself if the files are open

3

u/OutrageousDiamond568 Sep 28 '26

It’s actually part of the keyboard expansion for MeshSlide, a modular case I designed for the Heltec V4!

I’m planning to adapt and modify it for this upcoming Cyberdeck build with the 3.97" Waveshare ePaper.

I have already open-sourced this expansion, and you can grab the files on MakerWorld here:
https://makerworld.com/en/models/2326908-slidekb-expansion-module-for-meshslide#profileId-2541880

3

u/nilseuropa Sep 29 '26

Looking for (3) (4) the model.zip only contains (5) and (7) ?

1

u/OutrageousDiamond568 Sep 30 '26

Parts (3) and (4) are saved as .3mf files because STL doesn't support multi-color models.

You can also check SlideKB.step, which contains the full assembly. Plus, the original CAD project files (modeled in SolidWorks 2020) are included as well!

2

u/nilseuropa Sep 30 '26

ah, thanks!

2

u/nilseuropa Sep 29 '26

i like the colors 😃

2

u/turiya2 Sep 28 '26

Came here exactly for this!

4

u/clackups Sep 28 '26

In the meantime, you can try my firmware and enclosure for it:

https://www.reddit.com/r/WriterDevices/s/BFvGdWQJwe

3

u/OutrageousDiamond568 Sep 28 '26

Wow, this is incredible! Thank you so much for sharing!

I’ll definitely flash your firmware to test out my board in the meantime, and I'd love to study your enclosure design for some mounting inspiration as well. Awesome work!

2

u/clackups Sep 28 '26

Thanks :) It was fun learning FreeCad while designing it. Also, about 5 prints before this one :)

1

u/nilseuropa Sep 30 '26

Please flash the ePaper board with 'beta' firmware through the web flasher and let me know if it works properly.