Dimmable greeting card reading lamp

Project description:
A dimming reading lamp using the sgl8022 solution. It has multiple versions, and the text can be changed freely.
Open source agreement.
Open source agreement description.
 
Project related functions.
This small lamp has touch stepless dimming, touch switch light, manual switching of USB and battery power supply. function, and you can insert pictures on the circuit board to make exquisite gifts for friends. Touch dimming; the touch area is designed on the edge of the circuit board, which is beautiful and convenient. Touch the edge of the circuit board lightly to turn on the reading light, and touch it again to turn off the reading light. Press and hold the edge to adjust the light steplessly, and when the light is on, it can also illuminate the picture on the front of the board. It has a unique charm of manual switching; turn sw1 to change the power supply mode of the night light, and turn the switch to USB to use the type-c interface. To power the reading light, dial the bat button and use the onboard 2032 battery. The 2032 battery cannot be charged and there is no risk of explosion or fire, so it is safer. If the battery is installed but not used for a long time, please turn the switch to USB, so that the battery power supply can be cut off and the battery power consumption can be reduced.
 
Project Properties
This project is disclosed for the first time and is my original project. The project has not won any awards in other competitions.
 
Project progress
: All designs have been completed and the finished product has been produced.
 
Design principle
tip: The design principle of the project is explained.
 
Software description
tip: The software can be nested using code blocks. There is no need to explain all the software parts. Just explain the important parts and you can
 
show it in kind.
Design precautions
1. If your hands are dry when touching, the touch will be insensitive
2. Changing the resistance value of pcbR4 R5 can change the maximum brightness of the lamp
3. When hand welding the immersion gold model, please use high temperature resistant tape to stick to the edge, so that when welding Will not let tin contaminate the gold finger
4. Ceramic LED filament is very brittle, be careful when welding
5. For BOM order, please upload the BOM. The BOM generated by Lichuang is not allowed.
6. Ceramic LED filament is positive on the left and negative on the right
7 For the SMD LED on the front of the .moss model, solder the 103 capacitor on the first one on the left, and reverse solder the LED on the pad on the right (solder the positive pole of the SMD lamp bead to the negative pole of the pad).
Other
demonstration videos: [Homemade ultra-exquisite PCB reading lamp— —A romance unique to men in science and engineering [Spark Project] The open source link has been placed in the introduction - Bilibili] https://b23.tv/R9uq3zR
Engineering Attachments: The works participating in the event must upload the project-related program attachments to the open source The platform or personal code is stored in the cloud, and attachments can be uploaded up to 50M (please do not upload in the Lichuang workspace, there are restrictions)