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Three-speed control/UV lamp mini fan

Overview

This project uses three soft-pack polymer lithium batteries (model 502040)
and a C10S011 microcontroller. The module includes the power chip and microcontroller, making it inexpensive.
It utilizes an LP28057A power management chip to charge the lithium batteries. The
UV light
fan is 7W, with dimensions of 40*40*20mm, a hole spacing of 32mm, and M2.5 screw holes.
The cost is 45 yuan.
Your suggestions are welcome; I will continuously improve
and update it. The project also includes improvements to the diode (a small heat-generating component) and fixes the issue of the UV light indicator light not lighting up. (
Demonstration video
(open source) - Mini Fan, High-Performance Fan, UV Curing Lamp - Bilibili)

Design Files

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Update:2026-03-26 23:37:32

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