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# Embedded Systems

Deploy ExecuTorch on constrained embedded systems and microcontrollers.

## API Reference & Development

Start here for C++ development with ExecuTorch runtime APIs and essential tutorials.

- {doc}`executorch-runtime-api-reference` — **Start here**: Complete runtime API reference for embedded development
- {doc}`running-a-model-cpp-tutorial` — Step-by-step C++ API tutorial with practical examples
- {doc}`extension-module` — Custom module extensions for specialized functionality
- {doc}`extension-tensor` — Tensor operations and memory management extensions

## Build & Integration Guide

- {doc}`using-executorch-cpp` — Complete setup guide for C++ runtime integration
- {doc}`using-executorch-building-from-source` — Building from Source

## Choose Backend for acceleration

- {doc}`embedded-backends` — Available embedded backends and acceleration options

## Tutorials

- {doc}`tutorial-arm-ethos-u` — Export a simple PyTorch model for the ExecuTorch Ethos-U backend


```{toctree}
:hidden:
executorch-runtime-api-reference
running-a-model-cpp-tutorial
extension-module
extension-tensor
using-executorch-cpp
using-executorch-building-from-source
embedded-backends
tutorial-arm-ethos-u