ScStw/ESP32-HUB75-MatrixPanel-DMA
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ESP32-HUB75-MatrixPanel-DMA/examples/Four_Scan_Panel/README.md
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Using this library with 32x16 1/8 Scan Panels

Problem

ESP32-HUB75-MatrixPanel-I2S-DMA library will not display output correctly with 'Four Scan' or 1/8 scan panels such as this by default.

Solution

It is possible to connect 1/8 scan panels to this library and 'trick' the output to work correctly on these panels by way of adjusting the pixel co-ordinates that are 'sent' to the underlying ESP32-HUB75-MatrixPanel-I2S-DMA library (in this example, it is the 'dmaOutput' class).