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Top 23 C++ Avr Projects
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Marlin
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. Check with your vendor if you need source code for your specific machine.
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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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MiniCore
Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB
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MightyCore
Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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FastAccelStepper
A high speed stepper library for Atmega 168/328p (nano), Atmega32u4, Atmega 2560, ESP32, ESP32S2, ESP32S3, ESP32C3, ESP32C6, Atmel SAM Due, Raspberry pi pico and pico 2
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logic-analyzer
Logic Analyzer, for Arduino, AVR, ESP8266 and STM32 with a very nice working processing interface, you could run it also on any Android device.
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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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NeuralNetworks
A resource-conscious neural network library for microcontrollers, with partial bare-metal & native-os support.
Project mention: ATTiny85 – MNIST RNN model run via the internal 512-Byte EEPROM | news.ycombinator.com | 2025-11-20Idk how accurate practically is, but Tensorflow says (accuracy: 0.91 - loss: 0.2). You may wonder why I did this. The answer is that I'm looking for someone to hire me + to promote: https://github.com/GiorgosXou/NeuralNetworks
Have fun, I love you all.
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threeboard
A fully-functional open source and open hardware mechanical USB computer keyboard with only three keys!
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Marlin
Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. | Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine. (by thisiskeithb)
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vu2
Arduino Sound Reactive Lights. Line-in audio -> beat and tempo detection -> 8 visualisers. For 1 Arduino and up to 100 lights.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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++ Avr discussion
C++ Avr related posts
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ATTiny85 – MNIST RNN model run via the internal 512-Byte EEPROM
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Marlin: Optimized Firmware for 3D Printers Built on Arduino
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Marlin: Optimized Firmware for RepRap 3D Printers on Arduino Platform
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Is there anything like Embedded Artificial Intelligence & Machine Learning? Can anyone tell me more about it?
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E steps way off.
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FYI: Marlin 2.1.2.1 on Sapphire plus v2
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Ender 3 Pro + Octoprint = Thermal Malfunction, system stopped! Heater_ID: E0
- A note from our sponsor - InfluxDB www.influxdata.com | 23 Dec 2025
Index
What are some of the best open-source Avr projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Marlin | 17,192 |
| 2 | MiniCore | 1,100 |
| 3 | ArduinoMenu | 1,002 |
| 4 | modm | 910 |
| 5 | real-time-cpp | 752 |
| 6 | MightyCore | 693 |
| 7 | MicroCore | 597 |
| 8 | picsimlab | 589 |
| 9 | FastAccelStepper | 437 |
| 10 | logic-analyzer | 375 |
| 11 | ServoEasing | 359 |
| 12 | tinyproto | 265 |
| 13 | EmbeddedProto | 251 |
| 14 | ATtiny13-TinyUPS | 164 |
| 15 | NeuralNetworks | 124 |
| 16 | threeboard | 114 |
| 17 | Bloom | 82 |
| 18 | ATtiny85-TinyTerminal | 74 |
| 19 | ATtiny84-TinyCalibrator | 58 |
| 20 | MajorCore | 43 |
| 21 | Marlin | 41 |
| 22 | vu2 | 32 |
| 23 | Wand-Controller | 29 |
Sponsored
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.
www.influxdata.com