2. Idea

2.1. Idea V2 - Digital Hand Winnower STEMKit

Inspired by China's Spring Festival holiday and traditional objects from my hometown—such as the wind winnower (风柜/吹谷机) and stone mill (石磨)—which are quintessential artifacts of rural village life.

I have carefully considered a project idea. I aim to create a modern, programmable wind winnower that allows young students in STEM classrooms to both learn about the historical significance of this traditional tool and engage with it through hands-on programming.

2.1.1 Digital Hand Winnower

This project combines a digitally-controlled hand winnower built around the ESP32 microcontroller, integrated with a microphone, speaker, display screen, and a 3D-printed winnower structure modeled after the traditional design.

The system is paired with a remote control device, also implemented using an ESP32, enabling wireless operation of the winnower's functions.

old hand winnower	sketch

2.1.2 design

To help everyone better understand this project, I used Gemini AI 、Hunyuan AI to generate concept renderings and visual illustrations.

design v1	design v2