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Top 23 C Embedded System Projects
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Nutrient
Nutrient – The #1 PDF SDK Library, trusted by 10K+ developers. Other PDF SDKs promise a lot - then break. Laggy scrolling, poor mobile UX, tons of bugs, and lack of support cost you endless frustrations. Nutrient’s SDK handles billion-page workloads - so you don’t have to debug PDFs. Used by ~1 billion end users in more than 150 different countries.
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Project mention: Reverse-engineering my speakers' API to get reasonable volume control | news.ycombinator.com | 2024-07-26
Fantastic, this could be iterated on by setting it up as a custom airplay speaker with re-mapped volume thresholds.
https://github.com/mikebrady/shairport-sync
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printf
Tiny, fast, non-dependent and fully loaded printf implementation for embedded systems. Extensive test suite passing.
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wolfssl
The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3!
Project mention: Embedded TLS Library for Applications, Devices, and the Cloud | news.ycombinator.com | 2024-12-29 -
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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
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libvncserver
LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.
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modern-embedded-programming-course
Companion repository to the "Modern Embedded Systems Programming" video course.
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xboot
The extensible bootloader for embedded system with application engine, write once, run everywhere.
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MuditaOS
Mobile operating system based on FreeRTOS™ optimized for E Ink displays - developed for Mudita Pure minimalist phone
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libhydrogen
A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
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libc
libc targeted for embedded systems usage. Reduced set of functionality (due to embedded nature). Chosen for portability and quick bringup. (by embeddedartistry)
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luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
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printf
Tiny, fast(ish), self-contained, fully loaded printf, sprinf etc. implementation; particularly useful in embedded systems. (by eyalroz)
> stuff - the most common request was for printf as a debugging crutch
I have actually adapted a library for that particular case:
https://github.com/eyalroz/printf/
I started with a standalone printf-family implementation targetting embedded devices, and (among other things) adapted it for use also with CUDA.
> I mostly wanted mmap.
Does it really make sense to make a gazillion mmap calls from the threads of your GPU kernel? I mean, is it really not always better to mmap on the CPU side? At most, I might do it asynchronously using a CUDA callback or some other mechanism. But I will admit I've not had that use-case.
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QuarkTS
An open-source OS for embedded applications that supports prioritized cooperative scheduling, time control, inter-task communications primitives, hierarchical state machines and CoRoutines.
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totalcross
TotalCross is a Software Development Kit that helps cross platform application development. Currently supported platforms are: Windows, Wince, Android, iOS, Linux and Linux ARM for embedded systems.
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SaaSHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C Embedded Systems discussion
C Embedded Systems related posts
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Simply Parse in C
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Many Hands Make Light Work - Let’s Learn Together
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I'm new to all this. Getting an ARM Cortex A based SBC up and running on an RTOS?
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How to use maximum HBM bandwidth?
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2023 IoT Contest
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Nanoprintf – The smallest public printf implementation for its feature set
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LameUI v2.0 music player on ESP32. The 2.0 version has many new features. Lots of improvements are still needed.
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A note from our sponsor - SaaSHub
www.saashub.com | 16 Feb 2025
Index
What are some of the best open-source Embedded System projects in C? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | rt-thread | 10,803 |
| 2 | shairport-sync | 7,487 |
| 3 | u8g2 | 5,371 |
| 4 | printf | 2,598 |
| 5 | inih | 2,553 |
| 6 | wolfssl | 2,405 |
| 7 | tilck | 2,400 |
| 8 | Vitis-Tutorials | 1,311 |
| 9 | libvncserver | 1,155 |
| 10 | modern-embedded-programming-course | 848 |
| 11 | xboot | 845 |
| 12 | MuditaOS | 655 |
| 13 | libhydrogen | 652 |
| 14 | libc | 541 |
| 15 | luos_engine | 521 |
| 16 | binbloom | 515 |
| 17 | printf | 469 |
| 18 | lwesp | 456 |
| 19 | esp | 353 |
| 20 | nanoMODBUS | 337 |
| 21 | QuarkTS | 315 |
| 22 | hummingbird | 253 |
| 23 | totalcross | 222 |
Sponsored
Nutrient – The #1 PDF SDK Library, trusted by 10K+ developers
Other PDF SDKs promise a lot - then break. Laggy scrolling, poor mobile UX, tons of bugs, and lack of support cost you endless frustrations. Nutrient’s SDK handles billion-page workloads - so you don’t have to debug PDFs. Used by ~1 billion end users in more than 150 different countries.
www.nutrient.io