Creating USB MIDI Devices With RP2040 and Arduino for Custom Music Controllers
I built a USB MIDI controller with an RP2040 that responds in under 5ms—but what I discovered next changed how I approach custom music hardware.

I built a USB MIDI controller with an RP2040 that responds in under 5ms—but what I discovered next changed how I approach custom music hardware.

Just when your RP2040 seems lost to a silent freeze, a clever watchdog trick can rescue it—discover how to tame crashes with precision.

A simple wiring trick unlocks massive storage—discover how external QSPI flash lets your RP2040 run larger Arduino firmware effortlessly.

No ordinary timing—discover how PIO state machines on the RP2040 redefine precision in Arduino, unlocking custom protocols at 125 MHz.

Leverage SPI0 at 30 MHz with DMA on your RP2040—but unlocking clean 30 MSPS ADC captures demands precise timing, layout hacks, and a surprise twist with PIO.