Gesture LED Control
Lighting · Board: XIAO · Day 81 of 100
Wave your fingers — OpenCV tracks gestures and toggles LEDs on the XIAO ESP32-S3. Camera vision meets embedded control.

How it works
A camera feed runs through OpenCV on the PC, which classifies your finger gestures and sends the result over serial to the XIAO ESP32-S3. The board just switches LEDs — the vision system does the thinking. Camera input, embedded output, one serial link between them.
What you'll learn
- Computer vision input
- Gesture classification
- Vision-to-embedded bridge
- Serial result passing
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.
More Lighting builds
ESP32
Auto Night Light
An ESP32 reads ambient light through an LDR and switches an LED on automatically after dark. A gentle first project covering analog input and threshol…
Read case →
ESP32
Dimmer LED
Turn a potentiometer to fade an LED smoothly using PWM on the ESP32. Teaches analog-to-digital conversion and duty-cycle control in one evening.
Read case →
ESP32
RGB Color Mixer
Three potentiometers blend red, green, and blue channels on an ESP32-driven RGB LED. A hands-on way to learn multi-channel PWM.
Read case →