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A technical blog post detailing fast integer-based oscillator implementations for the GBA and rp2040, covering saw, square, triangle, and pulse waves, with focus on speed over aliasing reduction.
A Cornell ECE4760 course project demonstrates that the RP2040 microcontroller's DMA subsystem is Turing complete, building a functional fetch-execute CPU entirely out of DMA channel operations without involving the ARM cores.
The pic0rick is an open-source ultrasound acquisition board based on the RP2040/RP2350 microcontrollers, offering a low-cost alternative to FPGA-based designs for DIY ultrasound imaging.