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Top 23 C Microcontroller Projects
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MicroPython
MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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zephyr
Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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neorv32
:rocket: A tiny, customizable and extensible MCU-class 32-bit RISC-V soft-core CPU and microcontroller-like SoC written in platform-independent VHDL.
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PikaPython
An ultra-lightweight Python interpreter that runs with only 4KB of RAM, zero dependencies. It is ready to use out of the box without any configuration required and easy to extend with C. Similar project: MicroPython, JerryScript.
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stm32-bootloader
Customizable Bootloader for STM32 microcontrollers. This example demonstrates how to perform in-application-programming of a firmware located on an external SD card with FAT32 file system.
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berry
A ultra-lightweight embedded scripting language optimized for microcontrollers. (by berry-lang)
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tinyengine
[NeurIPS 2020] MCUNet: Tiny Deep Learning on IoT Devices; [NeurIPS 2021] MCUNetV2: Memory-Efficient Patch-based Inference for Tiny Deep Learning; [NeurIPS 2022] MCUNetV3: On-Device Training Under 256KB Memory (by mit-han-lab)
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tiny-json
The tiny-json is a versatile and easy to use json parser in C suitable for embedded systems. It is fast, robust and portable.
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ubxlib
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.
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Just putting my hand up to say that MicroPython is awesome (and runs on the RP2040). https://micropython.org
Project mention: Ask HN: Nobody interested an open hardware iPod Nano? | news.ycombinator.com | 2024-02-29So here is the thing: The iPod Nano 7g is from 2012. I've seen many people designing custom PCBs and releasing Kickstarter projects for custom audio players[5] or game handhelds[6]. I know Rockbox (which is great, but its lacks support for Wifi and Bluetooth AFAIK and just does not compete with the UX of iPod's audio book features in my opinion) and iPod Linux. 10 years ago someone even reverse engineered the iPod Nano 6g display[3].
Although I'm not skilled enough in PCB-Design, after some research I found the Lilygo T-Display S3 Pro[4] based on ESP32 S3, which would be the size, but lacks audio and OS. There is also the Mango PI CyberPad[7], which looked interesting, but maybe is already too clunky.
Programming wise, LVGL[8] may be a good framework to develop a modern and efficient UI - at least it looks promising.
So, why is nobody interested in recreating an iPod nano like device? It should be doable with modern tech, but Phones have completely taken over the marked...
1: https://www.reddit.com/r/audiobooks/comments/14ue4un/comment/ks1sj99/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
2: https://github.com/advplyr/audiobookshelf-app/issues/847
3: https://www.youtube.com/watch?v=7TedIzmguP0
4: https://www.lilygo.cc/products/t-display-s3-pro
5: https://www.youtube.com/watch?v=1C597AkhGtw
6: https://www.funkey-project.com/
7: https://mangopi.org/cp1m
8: https://lvgl.io/
Hey folks. Anyone out there waiting for BT Auracast? It was announced June 2022, and immediately struck me as must have.
I lost my earbuds, but it seems ridiculous to get a replacement without Auracast, seems like surely if I'm going to make a decent sized purchase like that it needs to support group playing. I want to tune into the radios of other people on the metro or on the bus, want to be able to watch a movie on the plane with someone.
Auracast was announced in June 2022. Anyone else out there struggling with expectations here? I'm really hoping the product announcement season that's right around the corner had a good number of Auracast announcements.
Side note, a ton of it is over my head but it's been so so fun tuning in every once and again to see how Zephyr's Bluetooth Audio work is going. Just wild now much has gone into this! https://github.com/zephyrproject-rtos/zephyr/commits/main/subsys/bluetooth/audio
Project mention: LittleFS Design (CObW) – Combining advantages of COW and log-structures | news.ycombinator.com | 2024-01-25
As another point for those interested, it (to my knowledge) is currently the ONLY implementation of a scoring machine that the firmware for the device is written in Circuit Python. which gives this unit an advantage when it comes to any and all multi tasking that the unit may need to do.
Project mention: Xiaomi Vela IoT Platform is Being Open-Sourced Based on NuttX Real-time OS | /r/embedded | 2023-11-19
Resources I used: - How to Burn ATTiny85 Using Arduino-Mega As ISP : 5 Steps - Instructables - To program Arduino as an ISP. This was for my Arduino mega. There are a more than a few links for "normal" Arduinos if you google a bit. - GitHub - SpenceKonde/ATTinyCore: Arduino core for ATtiny 1634, 828, x313, x4, x41, x5, x61, x7 and x8 - arduino support for attiny microcontrollers.
Project mention: An example of how to add the A ISA extension's LR/SC operations into an open-source architecture | /r/RISCV | 2023-07-24
PikaPython – ultra-lightweight Python interpreter that runs with only 4KB of RAM, zero dependencies
Embox is a configurable RTOS designed for resource constrained and embedded systems. Embox main idea is using Linux software without Linux. (https://embox.github.io/ ) If you want use complex Linux Software and Linux is huge for your goals. Embox is the best idea, as I think. For example Embox is the only RTOS that allows to use OpenCV on Cortex-m MCUs https://www.embedded.com/benchmarking-opencv-on-stm32-mcus/
Project mention: [D] Run Pytorch model inference on Microcontroller | /r/MachineLearning | 2023-11-14nnom
This is interesting, but lua needs a refresh.
I think berrylang shows a lot of promise now https://berry-lang.github.io/. The documentation has improved a lot and while it doesn't have a 'luajit' yet it has a lot of really interesting optimisation/reduction techniques.
Project mention: [D] Run Pytorch model inference on Microcontroller | /r/MachineLearning | 2023-11-14TinyEngine from MCUNet. Looks great, targeting ARM CM4.
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 Microcontroller related posts
- LittleFS Design (CObW) – Combining advantages of COW and log-structures
- LVGL 9.0 Released
- LittleFS Design
- MicroPython v1.22.0
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MicroPython VS PikaPython - a user suggested alternative
2 projects | 25 Dec 2023
- Bill Lamie: Story of a man and his real-time operating systems
- Littlefs – a little fail-safe filesystem designed for microcontrollers
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A note from our sponsor - InfluxDB
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Index
What are some of the best open-source Microcontroller projects in C? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | MicroPython | 18,317 |
| 2 | lvgl | 14,890 |
| 3 | zephyr | 9,582 |
| 4 | rt-thread | 9,562 |
| 5 | littlefs | 4,764 |
| 6 | u8g2 | 4,748 |
| 7 | circuitpython | 3,894 |
| 8 | nuttx | 2,316 |
| 9 | DAPLink | 2,145 |
| 10 | ATTinyCore | 1,492 |
| 11 | neorv32 | 1,423 |
| 12 | PikaPython | 1,405 |
| 13 | embox | 1,098 |
| 14 | stm32-bootloader | 839 |
| 15 | nnom | 799 |
| 16 | berry | 766 |
| 17 | tinyengine | 734 |
| 18 | lwext4 | 443 |
| 19 | tiny-json | 336 |
| 20 | nf-interpreter | 293 |
| 21 | lv_drivers | 284 |
| 22 | BFree | 272 |
| 23 | ubxlib | 269 |
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