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adafruit sells most of the parts you need if you go the DIY route https://www.adafruit.com/product/5362

great tutorials too https://learn.adafruit.com/rgb-led-matrix-cube-for-pi

Second this. The 32x64 version is what I used to make this digital tide clock as a project with my nephew https://www.filepicker.io/api/file/UzFNawTTWq4h5h6YF9Im. It fetches tide data from NOAA to tell you next high and low tides.

We also made an arcade game with the LED screen.

Not the cheapest route but it’s relatively easy and fun to get it working

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