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Top 17 C++ Serial Projects
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SerialTest
Data transceiver(monitor)/realtime plotter/shortcut/file transceiver over serial port/Bluetooth/network on Windows/Linux/Android/macOS | 跨平台串口/蓝牙/网络调试助手，带数据收发/实时绘图/快捷发送/文件收发面板，可在PC和Android设备上使用
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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.
- Project mention: ESP32-Faikin: ESP32 based module to control Daikin aircon units | news.ycombinator.com | 2025-07-20
I was very happy to find that there are similar libraries for Mitsubishi units as well:
1: https://github.com/SwiCago/HeatPump
2: https://github.com/echavet/MitsubishiCN105Esphome
I've got this running on several units and it works great. If you buy ESP32 development boards with pre-soldered pins, you can even build the boards without soldering.
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x-tools
Qt-SerialPort-HID-BLE-UDP-TCP-WebSocket-Modbus-CANBus-MQTT debugging tool, which support custom lua, javascript, chart view and data transmitting...
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WebSerial
A remote terminal library for wireless microcontrollers to log, monitor or debug your firmware/product.
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SerialTransfer
Arduino library to transfer dynamic, packetized data fast and reliably via Serial, I2C, etc.
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PacketSerial
An Arduino Library that facilitates packet-based serial communication using COBS or SLIP encoding.
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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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gba-link-connection
🔗 A set of Game Boy Advance (GBA) C++ libraries to interact with the Serial Port. Its main purpose is to provide multiplayer support to homebrew games.
- Project mention: New GUI based serial terminal for embedded development (Linux and Windows) | news.ycombinator.com | 2025-05-08
Can't really help with exact instructions for other distros, but the "in a nutshell" is you need to install qtcreator and QT5.
After you have them installed and working all you have to do is load the .pro file from the Project directory (https://github.com/TheBeef/WhippyTerm/tree/main/Project) you should be able to just hit the green debug/go button and it should work (you do need to be using the gcc toolchain). This is the same for the Windows build.
Hope this helps.
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quardCRT
quardCRT is a terminal emulation and remote desktop software that supports multiple backend protocols, can be used across platforms without dependencies, and has a completely consistent user experience on windows/linux/mac. It supports traditional terminal software functions such as multi-tab and history management, and supports some unique detailed functions.
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ESP_Python_Serial
A tutorial on how to make an ESP and a Python script (running on PC or a RPi) communicate via Serial and do useful stuff while communicating
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ESP-Now-Serial-Bridge
This is a performance optimized version based on yuri-rage's serial bridge (by hhackbarth)
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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++ Serial discussion
C++ Serial related posts
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Show HN: Bluetooth USB Peripheral Relay – Bridge Bluetooth Devices to USB
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Serial studio: Multi-purpose serial data visualization and processing program
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RaZberry 7 on ESP32
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A Low Latency Guitar Effects Processor Suitable for Running on a Raspberry Pi
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Copy 2 LED inputs to 100 LED strip (1 input to 50 LEDs each)
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Looking for way to modulate MP3 file with 40khz
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What is your favorite multi-tabbed PuTTY software?
- A note from our sponsor - SaaSHub www.saashub.com | 23 Dec 2025
Index
What are some of the best open-source Serial projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | SerialTest | 1,483 |
| 2 | HeatPump | 963 |
| 3 | x-tools | 917 |
| 4 | WebSerial | 588 |
| 5 | SerialTransfer | 475 |
| 6 | Adalight-FastLED | 387 |
| 7 | PacketSerial | 294 |
| 8 | esphome-stream-server | 272 |
| 9 | Unreal_Engine_SerialCOM_Plugin | 266 |
| 10 | tinyproto | 265 |
| 11 | gba-link-connection | 249 |
| 12 | WhippyTerm | 76 |
| 13 | quardCRT | 70 |
| 14 | serial_port | 61 |
| 15 | ESP_Python_Serial | 14 |
| 16 | eeprom-programmer | 10 |
| 17 | ESP-Now-Serial-Bridge | 9 |
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