Just finished this rebuild from original to ESP32

This page summarizes the projects mentioned and recommended in the original post on /r/cade
led-panels dma Esp32 esp32-arduino esp32s2

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  • ESP32-HUB75-MatrixPanel-DMA

    An Adafruit GFX Compatible Library for the ESP32, ESP32-S2, ESP32-S3 to drive HUB75 LED matrix panels using DMA for high refresh rates. Supports panel chaining.

    • I'm about to share the whole project documentation in german. I used ESP32-HUB75-MatrixPanel-DMA with additional 74HC245 to shift the levels up from 3.3 to 5v (as there is a 2m flat cable running through the frame to the display). The Library is based of Adafruit GFX, for which you can find plenty of examples. If you don't want blanking, use two buffers or partially repaint (for the text and image animation I added black filled boxes on each redraw before painting the new position/text). The ESP32 has just enough pins to power the basic functions, but I'm about to order a new PCB with a portexpander, which frees some pins and allows for blinking buttons. Will add a DFPlayer Mini as well, as soon my customer decided, which MP3 files he wants.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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