WiFi controlled Neo Pixels strips
In this project I explain how to drive NeoPixels with an Arduino M0 PRO (SAMD21) using the SPI peripheral with the DMA controller to create colored animated patterns. Since displaying...
Category: Arduino
Arduino M0 PRO: programming the core ARM Cortex-M0+ and the SAMD21 MCU
A famous aphorism by computer scientist David Wheeler goes: “All problems in computer science can be solved by another level of indirection” (this is sometimes quoted as the fundamental theorem of...
Arduino M0 PRO: configuring the clock tree of SAMD21
The SAMD21 complex clock signal distribution system is designed to offer maximum flexibility and lets the programmer choose between performance and power consumption. The cperipherals that control the clock distribution...
Arduino M0 PRO: interrupt driven serial interface
SERCOM (SERial COMmunication interface) is the serial communication peripheral of the SAMD21. The SAMD21G18A has six peripheral instances (from SERCOM0 to SERCOM5) which can be configured to support USART, SPI...