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Hi,

I finished up my asset pack of 'retro' 8x8px repeating tile patterns:
http://8x8.me

Public Domain - free to use.

The Thumby code snippets encode the image as a bytearray (and sprite), and original png images are provided.

Appreciate any feedback; hope it's useful :-)

It would be great to add a super-thin Lipo to the range of batteries.
This would allow some new form-factors / credit card sized electronics :-D

E.g.
https://www.powerstream.com/thin-lithium-ion.htm#1101
Personally I want: PGEB016144 ultra thin battery 1 x 44 x 61 mm 200 mAh (it's actually 180mAh) ...
https://www.powerstream.com/p/PGEB014461.pdf

Hi team TC!
I'm hoping to optimise the OLED code `ssd1306.py`.

Can I ask:
- Will you ever change the display size (/resolution) on the Thumby - or - can we assume the width and height will forever be 72x40px?
- Will the OLED module ever be changed to use an external drive voltage (`external_vcc`) rather than the built in charge pump?

Many thanks,
Andrew

Thanks @Ben. 
I will continue to experiment this week on the branch.
You're probably aware it builds on the PR to tweak the core files:
https://github.com/TinyCircuits/TinyCircuits-Thumby-Code-Editor/pull/42

Branch for testing:
https://github.com/ace-dent/TinyCircuits-Thumby-Code-Editor/commits/feature/StoreSettings

Currently the core files make use of the Watchdog timer's scratch register, to store and transfer data between soft-resets.
This allows `menu.py` to launch a game by soft-reseting back to `main.py` with a True `1` flag  set in the first scratch register (0), address `0x40058000+0x0C`.
(More info: https://datasheets.raspberrypi.com/rp2040/rp2040-datasheet.pdf  - Section 4.7.6)

My proposal:
I'd like to store 3 other settings in this semi-persistent storage:
`0x40058010` (scratch1) - Hardware ID / HWID (0–15)
`0x40058014` (scratch2) - Brightness level (1–127)
`0x40058018` (scratch3) - Intro /skip scrolling indicator (0,1)

Although these values require less than a byte each, I don't feel it's worth the code overhead to pack them into one 4 byte long register, since we have 8 registers available in total. Update: Cannot use `mem8()` to address each of the four bytes separately, as byte access is aligned to the start address block AFAIK (tested 28-Dec).

Motivation:
- We only need to evaluate the HWID once per session (on hard reset), not on every soft-reset (faster load times).
- We only need to read Contrast once and on change (faster load times).
- Additionally, I'd like to add a 'fast boot' option that skips scrolling and uses the 'scroll indicator', after the first boot.

Would welcome any feedback from TC staff (@Jason) and the community...?


Note: I'm posting here (vs Discord) for visibility and future search/ knowledge repository.

I've changed the formatting style to better match my tastes...
e.g. https://github.com/ace-dent/8x8.me/blob/main/01-Dots/Dots.thumby.py#L18-L29

Hopefully moving the big comment block inside the byte array won't offend people!?

@Jason - I appreciate the testing and review.

Currently assigning the bitmap to a Sprite class is commented out as default.  I figured this wasted RAM (/ program memory?) if the user chooses another blitting method or if the sprite is never used...?
Is that a fair assumption?
Might the API be extended in the future, with other blitting classes? (e.g. simple non-masked bitmap, or a screen pattern fill, etc.)

Thanks Jason.
I'm new to Python and Thumby... does the generated code look reasonable?
I'd like to refine it to 100%, before converting hundreds of images! 

Hi!

I'm just adding Thumby support to a collection of 'retro' 8x8px fill patterns.
e.g. https://github.com/ace-dent/8x8.me#11-symbols

The idea is to make it easy to copy& paste code to get the artwork.
I've crafted the `# BITMAP...` comment to support importing into the web based IDE / bitmap editor.

I would appreciate any feedback.
Thanks :-)

@Ben - Have you looked at the arduboy2 lib for blitting fonts?
What is the bottleneck?

It seems it is 1306 based:
https://github.com/TinyCircuits/tinycircuits.github.io/blob/master/ThumbyGames/lib/ssd1306.py