2024.11.25 Updated the stl file package, added 4 STL files for the outlet baffle resistplate_cut9.1-9.4mm- It is recommended to use 9.3mm first, due to the deviation of part size and assembly clearance, 9.1-9.4mm different height sizes may be used;

2024.11.14 Updated BOM, stepper motor gear STP to facilitate modification of different motors, please refer to the attachment.

Using Lichuang panel service 20*30cm a board. The overall length of the finished product is 15CM, the height is about 5.5CM, and the width is 5CM.

Type-C with battery power.

1. Project introduction

The circuit part of this project is borrowed fromhttps://oshwhub.com/kaguyamokou/guang-min-wu-ji-diao-guang-ye-deng_copy 

Acrylic adopts the panel printing service of LCSC.

2. Description

This project uses 26MM filament as the light source. Tested series 20Ω resistance current limit brightness suitable. (Can also be replaced with patch LED)

The filament is purchased from salted fish, 0.4 yuan a piece.

Lithium battery adopts soft pack battery, 250MAH, size as shown below. You can also replace the larger capacity battery, please modify the circuit yourself.

In view of the fact that some students cannot buy voltage regulators and battery management chips, they submit the purchase address, and the link may fail:

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.42752e8d9GJSBR&id=570985893897&_u=gogptrm0cee

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.42752e8d9GJSBR&id=648160107724&_u=gogptrme67b

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.42752e8d9GJSBR&id=642152619080&_u=gogptrm9230

https://item.taobao.com/item.htm?spm=a1z09.2.0.0.42752e8d9GJSBR&id=678219528830&_u=gogptrme89e

The thickness of the acrylic is 2MM, which has been marked in the engineering documents. Patterns can be changed according to your needs.

Please modify the text or the desired pattern of the panel insert by yourself.

Please modify the text or the desired pattern of the panel insert by yourself.

Please modify the text or the desired pattern of the panel insert by yourself.

3. Purchases

SGL8022W can be replaced with 8022W, or it can be replaced with a XXX8022W suffix.

Acrylic adhesive needs to be purchased.

The components required on the PCB.

Batteries and filaments, masking paper.

Magnets or springs, copper sheets.

4. Welding and assembly

After two modifications to the size and hole position modification, the current version is now available for normal use. (Presentation for the second edition)

Demonstration of this because the GND via is hit on the touch control line, forming a loop, so the touch is invalid, and it will light up when plugged in.

The new version has been modified.

The PCB needs to be cut and soldered by itself. The final product is shown below.

5. Touch the part

1. There is a solder pad on the PCB, and the acrylic has a circular slot. The slots are suitable for magnets, copper sheets, springs with a diameter of 5 mm. You can choose your own material.

The two parts are connected by springs or wires, which can realize touch switch and dimming.

2. [The touch part can also increase the touch sensing intensity by changing the capacitance value of the touch sensitivity, and modify the capacitance that is, do not open the touch hole on the panel, see PDF for specific details]

The use of adhesive is to control the output, otherwise it is easy to stick to the board. It's dirty and ugly.

The BOM is based on the PCB, and the automatically generated BOM has an error.

Please check the DRC and copper pouring by yourself, and the error of the following five can be ignored and directly plated.

Bilibili demo video: https://www.bilibili.com/video/BV1SW4y1E78b/?vd_source=74a9f6cb9a59140477fef67bbb0ec8ee