# Sixth Lichuang Electric Competition#Personal offline voice figurine display cabinet

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* 1. Introduction to project functions

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Based on Qiyingtailun's offline voice, we can control the switching and dimming of LED lights in display cabinets (not yet implemented).

A photo of the power supply and control parts

Use MEAN WELL power supply for power supply and Cooler Master disassembly module for voltage reduction operation

Constant current and constant voltage module protects LED light strips

LED light panel

Because the color rendering index of the finished light strips on Taobao is too low, I made my own light strips.

Installation effect demonstration

*2. Project attributes

Original original published for the first time

* 3. Open source agreement

GPL3.0

*4. Hardware part

It was originally designed to have three PWM outputs to control 5V light strips and a switch. However, because the color rendering index of the finished light strip was too low and the voltage of the self-made light strip was 12V, an external PWM module was used for amplification. USB Type B and rivet type were designed. The crimp socket is used for power supply access, which meets the different needs of testing and installation. There are also programming ports and short-circuit bits reserved to facilitate later program modifications.

*5. Software part

Just put the sample into the official SDK

*6. BOM list

*7. Contest LOGO verification

* 8. Demonstrate your project and record it as a video for uploading

Link to Station B: [Qi Ying Tai Lun] Self-made offline voice smart display cabinet_bilibili_bilibili