July 8, 2017 AT 6:18 pm
New Guide and Library: DMA-Driven NeoPixels for Adafruit Feather M0, Arduino Zero and More
NEW GUIDE: DMA-Driven NeoPixels
If you’ve used NeoPixels extensively you’ve likely seen some issues in how they interact with other code. The Arduino millis() and micros() functions lose accuracy, the Servo library may stutter, or refreshing a very long NeoPixel strip can slow a program down.
A solution is presented for development boards based around the ARM Cortex-M0 microcontroller, such as the Adafruit Feather M0, Circuit Playground Express or Arduino Zero, using these devices’ DMA-driven SPI capability.
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