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23 stars written in C
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Open Source Flight Controller Firmware

C 10,384 3,517 Updated Dec 23, 2025

This is the latest version of the internal repository from Pebble Technology providing the software to run on Pebble watches. Proprietary source code has been removed from this repository and it wi…

C 4,940 386 Updated Feb 25, 2025

Implementations of SIMD instruction sets for systems which don't natively support them.

C 2,893 292 Updated Dec 18, 2025

CANopen protocol stack

C 1,769 753 Updated Nov 22, 2025

ANSI C library for NURBS, B-Splines, and Bézier curves with interfaces for C++, C#, D, Go, Java, Javascript, Lua, Octave, PHP, Python, R, and Ruby.

C 1,311 215 Updated Sep 3, 2024

Fast and embedded solvers for nonlinear optimal control and nonlinear model predictive control

C 1,187 308 Updated Dec 23, 2025

MQTT library for Arduino

C 1,084 239 Updated Aug 30, 2024

RRDtool 1.x - Round Robin Database

C 1,077 276 Updated Apr 4, 2025

High-performance interior-point-method QP and QCQP solvers

C 662 137 Updated Sep 24, 2025

micro-ROS library for Arduino

C 534 136 Updated Dec 24, 2025

Open Source Sensor Fusion

C 349 148 Updated Sep 30, 2015

Portable C libraries which provide APIs to build applications with u-blox products and services. Delivered as add-on to existing microcontroller and RTOS SDKs.

C 343 130 Updated Nov 11, 2024

Block diagram editor and real time code generator for Python

C 216 37 Updated Dec 14, 2025

Linux i2c library, support C/C++/Python

C 184 67 Updated May 28, 2025

The bit level data interchange format for serializing data structures (long term maintenance).

C 158 18 Updated Oct 12, 2025

NanoSLAM: Enabling Fully Onboard SLAM for Tiny Robots

C 145 18 Updated Sep 16, 2024

Ntrip Version 2.0 Command Line Client

C 123 90 Updated Sep 9, 2020

A CANopen protocol for all systems such as embedded, PC, etc.

C 119 35 Updated Dec 2, 2025

A dual active-set algorithm for convex quadratic programming

C 96 17 Updated Dec 7, 2025

Pico ROS client libraries

C 68 6 Updated Dec 23, 2025

observation equations for SLAM

C 30 11 Updated Oct 17, 2025

Demo applications and reference implementations

C 18 10 Updated Apr 16, 2025