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LED-matrix

16x16 pixel RGB LED matrix with support for WLED and text (digits only for now).

Price for components was about 18€ (see comment).

Use WLED and its interfaces for controlling the light and showing effects. To show digits (which WLED can't), see wled.py which sends pixel information to WLED via UDP.

Run a server taking commands via MQTT on lights/wled-matrix with python3 wled.py mqtt. Commands are on, off, num 123, co2.

Grid and case were designed in Fusion 360: https://a360.co/36UBWL9

You can 3D print the .stl files in models. Beware of warping (visible in top right corner below).

image image

More well-documented projects are mentioned here in german and at https://github.com/2dom/PxMatrix#examples.

TODO

Log

Click to expand

01.03.22 Created this repo and extracted commits from smart-home:

$ cd smart-home
$ git log --pretty=email --patch-with-stat --reverse --full-index --binary -- audio-reactive-led-strip wled.py > ../patch
$ cd ../LED-matrix
$ git am < ../patch

19.02.23 Was still commiting to smart-home/wled.py instead of here. Extracted new commits, deleted the file there and added this repo as a submodule.

Also noticed that GitHub showed 'Mar 1, 2022' for all extracted commits. Reason was that AuthorDate was correct, but CommitDate was set to the time of amend operation. Normal git log shows AuthorDate, git log --pretty=fuller also shows CommitDate which is what GitHub uses. Fix was to use git am --committer-date-is-author-date. However, had to get rid of the commits with the wrong date first, and then redo:

$ cd ../smart-home
$ git log --pretty=email --patch-with-stat --reverse --full-index --binary -- audio-reactive-led-strip wled.py > ../wled.patch
$ # split it into wled1.patch (up to Nov 9 2021) and wled2.patch (from Nov 12 2022)
$ cd ../LED-matrix
$ git log --pretty=email --patch-with-stat --reverse --full-index --binary > ../led-matrix.patch
$ # delete commits that are also in wled.patch from led-matrix.patch
$ git reset b3d14b1f3fea1b708972e8da08000790efedad8c # go back to 'Initial commit'
$ git am --committer-date-is-author-date < ../wled1.patch
$ git am --committer-date-is-author-date < ../led-matrix.patch