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Top 23 C++ Microcontroller Projects
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MiniCore
Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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MightyCore
Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535
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Project mention: Pico3D: Open World 3D Game Engine for the RP2040 Microcontroller | news.ycombinator.com | 2025-08-12
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Isn't this the premise upon which Google's Pigweed (https://pigweed.dev/) operates?
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EmbeddedProto
Embedded Proto is a C++ Protocol Buffers implementation specifically suitable for microcontrollers. It is small, reliable and easy to use.
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SimpleFTPServer
A simple FTP server for Arduino, ArduinoSAMD WiFiNINA, esp8266, esp32, stm32 and Raspberry Pi Pico W
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platform_specific_components
Low-level components and hardware drivers for various Cyphal-related projects
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tf4micro-motion-kit
Arduino Sketch and a Web Bluetooth API for loading models and running inference on the Nano Sense 33 BLE device.
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arduino-nostr
This library gives the ability to interact with Nostr relays with Arduino microcontrollers.
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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++ Microcontroller discussion
C++ Microcontroller related posts
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Pico3D: Open World 3D Game Engine for the RP2040 Microcontroller
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Ask HN: Use C with Classes for Embedded?
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Playing audio files in a Pi Pico without a DAC
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Microsoft Security-101: Open-Source curriculum
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Bombed an interview and trying to figure out how to pivot. Any advice on on increasing code literacy and filling in knowledge gaps from EE?
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New Functionality: Bluetooth for Raspberry Pi Pico W
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Microsoft free training on AI, IOT, Machine Learning and Data Science
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A note from our sponsor - Sevalla
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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 | GuiLite | 7,560 |
| 2 | uTensor | 1,854 |
| 3 | Sming | 1,536 |
| 4 | dRehmFlight | 1,250 |
| 5 | MiniCore | 1,074 |
| 6 | modm | 890 |
| 7 | real-time-cpp | 726 |
| 8 | MightyCore | 686 |
| 9 | SIM7000-LTE-Shield | 489 |
| 10 | distortos | 456 |
| 11 | Pico3D | 438 |
| 12 | pigweed | 430 |
| 13 | Pro_Micro | 289 |
| 14 | tinyproto | 260 |
| 15 | EBYTE | 251 |
| 16 | EmbeddedProto | 232 |
| 17 | SimpleFTPServer | 155 |
| 18 | TM1638plus | 85 |
| 19 | Bloom | 80 |
| 20 | platform_specific_components | 75 |
| 21 | tf4micro-motion-kit | 74 |
| 22 | arduino-nostr | 58 |
| 23 | hwlib | 58 |
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