# Sixth Lichuang Electric Competition#My offline assistant——Xiaoqiu classmate

* 1. Introduction to project functions

This project is a smart desk lamp assistant based on the Qiyingtailun CI-C22GS02S module. It supports battery query, lithium battery power supply, 1A charging speed, smart light switch and 9-level brightness adjustment, as well as some user-friendly modes. It was modified twice in total. The first problem I encountered was a download problem because I planned to add CH340. Later I found that the serial port could not communicate as long as the power was turned off. I didn’t want to add more voltage regulators and switches because of the convenience of downloading, so I added it. The CH340 was removed and an external serial port was used for downloading. The first time I forgot to draw the download port, and the LED driving capability was insufficient. The second time I added a SI2302MOS tube to increase the driving current. This design mainly solves the problem of intelligent desktop lamp design.

*2. Project attributes

This project is being made public for the first time and the project is original.

*3. Hardware part

*4. BOM list