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Open-source ESP32 emulator. Run real firmware locally or in your browser — no hardware, no cloud, no subscription.

Muse gadgets are open source devices you build yourself. Program an off-the-shelf ESP32 board or set up a Raspberry Pi with our device SDKs, then connect Muse to your displays, buttons, sensors, actuators, and whatever else you've got lying on your workbench.

Open-source, low-cost 10.5 GHz PLFM phased array RADAR system

CrossPoint is open-source e-reader firmware - community-built, fully hackable, free forever. It's maintained by a growing community of developers and readers who believe your device should do what you want - not what a manufacturer decided for you.

4 GHz Wi-Fi radio into a software-defined radio (SDR). It lets you capture the radio signal itself and process it in software, so you can view the spectrum and study signals beyond ordinary Wi-Fi packets. No separate SDR hardware is needed.

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

This roadmap is designed to help beginners aspiring to build a career as an Embedded Engineer/Developer, as well as assist current practitioners in expanding their skills.

In light of current events we like to support the people behind PlatformIO Project, especially Ivan Kravets, and wish them the strength to help stop the war. See platformio-is-ukrainian-project-please-help-us-stop-the-war for what you can do.

A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32

Wi-Fi CSI motion sensing for ESP32. C++ SDK, ESPHome, Native, and Matter frontends, browser tools, and a CLI for the full device lifecycle. GPLv3 and commercial licensing.

Our Development is fully tracked on this public Roadmap 🎉

Tutorials and getting-started guides to help you get your project running quickly.

Tiny Engineer is an open-source, 3D-printable desktop robot that physically acts out what an AI coding agent is doing: reading, thinking, coding, finishing tasks. It runs on an ESP32 over Wi-Fi and exposes a simple REST API, so any tool that can make an HTTP request can drive it.

9 million parameter language model that generates text on an ESP32-S3 microcontroller. 88 tokens per second on a small screen wired to the chip. It fits because most of the model lives in flash instead of RAM, using Per-Layer Embeddings, an idea from Google's Gemma 3n.

Scan for WiFi devices, block selected connections, create dozens of networks and confuse WiFi scanners.

Klipper software is Free Software. See the license or read the documentation. We depend on the generous support from our sponsors.

Marlin is a firmware for RepRap 3D printers optimized for both 8 and 32 bit microcontrollers. Marlin supports all common platforms. Many commercial 3D printers come with Marlin installed.

Embedded web server, with TCP/IP network stack, MQTT and Websocket

Build voice and text devices for your Hermes Agent, with ESP32 firmware, a Linux client, and a desktop simulator.

06. It runs full-size Neural Amp Modeler A2 captures in real time on the ESP32-S3, drives a class-compliant USB audio interface as a USB host, and has a touchscreen UI written in TSX that is compiled to native C++ — there is no JavaScript engine on the device.

PixelFont is a family of AdafruitGFX & u8g2 compatible fonts, hand crafted for tiny low-res displays. The fonts are designed to be slender and condensed to fit as much text on a line as possible. And to also look awesome.

If you get stuck or have any questions about building AI apps. Join fellow learners and experienced developers in discussions about MCP. It's a supportive community where questions are welcome and knowledge is shared freely.

Our main goal is to build a healthy and sustainable community around Flipper, so we're open to any new ideas and contributions. We also have some rules and taboos here, so please read this page and our Code of Conduct carefully.

Circuit diagrams and firmware source code for Gboard DIY keyboards

Jet is a dependency-free, fixed-function 3D software rasteriser written in C++17. It targets embedded hardware with limited CPU and memory, including ESP32 and STM32, and also runs on desktop PCs and Raspberry Pi.

A distributed pipeline inference engine on multiple ESP32S3 running 1.58-bit (BitNet) Language model.

A 45M-parameter LLM: needle 2 running fully offline on an ESP32-S3, turning plain-English requests into guaranteed-valid JSON tool calls.

x for microcontrollers, embedded systems and other constrained platforms. org.

TinyGo is a Go compiler intended for use in small places such as microcontrollers, WebAssembly (wasm/wasi), and command-line tools.

This project brings support for the ESP8266 chip to the Arduino environment. It lets you write sketches, using familiar Arduino functions and libraries, and run them directly on ESP8266, with no external microcontroller required.