NeoPixel_ZeroDMA-ified version of NeoMatrix library
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README.md

Adafruit_NeoMatrix_ZeroDMA

Adafruit_GFX-compatible library for NeoPixel matrices and grids using SPI DMA on ARM Cortex-M0 dev boards (Adafruit Feather M0, Circuit Playground Express, Arduino Zero, etc.).

Requires Adafruit_GFX, Adafruit_NeoPixel, Adafruit_ZeroDMA and Adafruit_NeoPixel_ZeroDMA libraries.