Decompose any signal into a weighted sum of squiggly lines

Cooperative multitasking and low-power idle for ARM Cortex-M3/M4/M33

Coroutines for generator functions, sequential pipelines, state machines, and other uses in C

Minimum viable USB CDC serial implementation for RP2350

minimum viable dma-driven pwm output

simple cooperative multitasking with low power yield

record audio using AudioQueue, write raw pcm to stdout

An RPN calculator with units

very simple standalone JSON interface for C which does no allocation

Nonblocking drawing to an SSD1306 OLED from SAMD21 or SAMD51

extremely minimalist bell 103 modulation/demodulation

Non-blocking DMA read and write access to a discrete SPI-attached PSRAM chip from a SAMD51

Simple zero-copy IPC across the process/language barrier without dynamic loading