MicroPython

A lean, efficient implementation of Python 3 optimized to run on microcontrollers and in constrained environments.

MicroPython brings the power of Python 3 to hardware, running directly on chips like the ESP32, STM32, and Raspberry Pi Pico. It includes a subset of the Python standard library and provides low-level access to hardware pins via the machine module. By using a custom bytecode compiler and runtime, it operates within as little as 256KB of code space and 16KB of RAM. This allows developers to skip the slow compile-flash cycle of C++ and interact with hardware in real time through an interactive REPL (Read-Evaluate-Print Loop).

https://micropython.org