# Morse WebUI on Arduino UNO Q – Web → Python → MCU with realistic Morse timing **URL:** \ **Category:** Showcase\ **Created:** [January 30, 2026, 5:09pm UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138 "2026-01-30T17:09:06Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![philippe86220](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/philippe86220/32/733778_2.png) [@philippe86220](https://forum.arduino.cc/u/philippe86220)\ **Post date:** [January 30, 2026, 5:09pm UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138/1 "2026-01-30T17:09:06Z")
Hello everyone, I would like to share a **completed and stable project** built around the **Arduino UNO Q** , combining a Web interface, Python logic on the Linux side, and real-time audio generation on the MCU side. The goal was to explore the UNO Q architecture and to implement a realistic **Morse code player** , both visually and acoustically. ### Overview - A Web interface (HTML / CSS / JavaScript) allows entering text and adjusting Morse speed. - A Python application running on the UNO Q Linux side exposes a simple HTTP API and manages a request queue. - The Python layer communicates with the MCU via the Arduino Bridge. - The MCU decodes the text and plays Morse code on a **Modulino Buzzer** , using standard Morse timing. The project supports multiple browser tabs without collisions thanks to a queue mechanism on the Python side. Architecture : Web Browser ↓ HTTP (WebUI) Python (Linux – UNO Q) ↓ Bridge.call("morse\_play") Arduino UNO Q MCU ↓ Modulino Buzzer ### Features - Adjustable speed (5–30) - Visual Morse representation (dots and dashes) - Realistic audio timing - Thread-safe queue handling - Clean and simple Web UI The Morse timing and audio output have been validated by ear (I was a Morse instructor many years ago), which was important to me for this project. ### Repository GitHub repository with full source code, documentation, and screenshots: [https://github.com/philippe86220/morse-webui-unoq-buzzer-modulino](https://github.com/philippe86220/morse-webui-unoq-buzzer-modulino/tree/main) This project is intended as a **reference implementation** and a learning example for anyone interested in the UNO Q architecture or Web → MCU integration. Best regards. ---
**Author:** ![philippe86220](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/philippe86220/32/733778_2.png) [@philippe86220](https://forum.arduino.cc/u/philippe86220)\ **Post date:** [January 30, 2026, 7:41pm UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138/2 "2026-01-30T19:41:39Z")
Update: I noticed that a small part of the code was missing at the end of a few files due to a copy/paste issue. The repository has been updated and is now complete. Thanks to those who already checked it out. ---
**Author:** ![gilshultz](https://avatars.discourse-cdn.com/v4/letter/g/67e7ee/32.png) [@gilshultz](https://forum.arduino.cc/u/gilshultz)\ **Post date:** [January 30, 2026, 10:20pm UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138/3 "2026-01-30T22:20:00Z")
Thanks for sharing! That should help beginning Amateur radio ( ham radio ) operators and more advanced ones to keep there skills. ---
**Author:** ![philippe86220](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/philippe86220/32/733778_2.png) [@philippe86220](https://forum.arduino.cc/u/philippe86220)\ **Post date:** [January 31, 2026, 7:47am UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138/4 "2026-01-31T07:47:28Z")
Thanks for the kind feedback, much appreciated. Beyond Morse practice itself, one of the main goals of this project was to **demonstrate the full UNO Q architecture** , showing how a Web interface interacts with the Linux core, which then communicates with the MCU (STM32) via the Bridge. In that sense, it is meant as much as an architectural example of a WebUI running on the Linux core and communicating with the MCU via the Bridge, as a Morse training tool. ---
**Author:** ![GolamMostafa](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/golammostafa/32/239011_2.png) [@GolamMostafa](https://forum.arduino.cc/u/GolamMostafa)\ **Post date:** [January 31, 2026, 8:27am UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138/5 "2026-01-31T08:27:53Z")
Thanks for the hard work in putting everything together and making the system work. The project would benefit university students if it were presented in a tutorial format in the forum -- step by step, showing "do this and get this result.” ---
**Author:** ![philippe86220](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/philippe86220/32/733778_2.png) [@philippe86220](https://forum.arduino.cc/u/philippe86220)\ **Post date:** [February 1, 2026, 8:12am UTC](https://forum.arduino.cc/t/morse-webui-on-arduino-uno-q-web-python-mcu-with-realistic-morse-timing/1428138/6 "2026-02-01T08:12:27Z")
Thank you for the suggestion. I have now added a detailed tutorial explaining the overall architecture and data flow of the project (WebUI → Linux → MCU), with step-by-step experiments and validation. The tutorial focuses on system design and interaction between layers rather than code line-by-line, which is intentionally kept readable in the repository. [LIEN\_VERS\_TUTORIAL.md](https://github.com/philippe86220/morse-webui-unoq-buzzer-modulino/blob/main/TUTORIAL.md) Steps 2 and 3 (WebUI availability and API experiments) are optional validation experiments. They were fully implemented and tested during development to verify the complete execution path. Thank you again for the feedback — any further comments, corrections, or clarifications are very welcome!