XIAO 4-LED Controller
Lighting · Board: XIAO · Day 37 of 100
A CustomTkinter desktop app switches four LEDs on the tiny XIAO ESP32-S3. Polished GUI control for a pocket-sized board.

How it works
A CustomTkinter desktop window sends short text commands over USB serial, and the XIAO ESP32-S3 parses each one to switch its four LEDs. The tiny board does the hardware work while the PC provides a polished interface neither could offer alone.
What you'll learn
- Serial command protocols
- Desktop GUI control
- USB-serial bridging
- Split UI/hardware architecture
Full project: code, wiring diagram & Wokwi simulation
The complete build guide lives in the original repo. Ours is a summary — the real thing is one click away.
Open full project on GitHub ↗Summary by SkillShop. Project by Kritish Mohapatra — code and diagrams belong to the original repo.
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