Side-by-side comparison

Async Rust framework and HALs for STM32, nRF, RP2040 and more; the de facto default for embedded Rust.

Memory-safe systems language without a GC; most admired for a decade and spreading into kernels and tooling.

Lean Python 3 implementation for microcontrollers with a REPL; huge on ESP32, RP2040 and STM32 boards.

Adafruit's beginner-focused MicroPython fork where boards mount as a USB drive for instant code edits.