Dormitory lighting and auxiliary light sources

I don’t know why there is no editor interface, but it is possible to open the editor in the upper right corner.
Project introduction
1. Anxinke VC-02 module is used for offline voice control. In terms of circuit, there is an onboard CH340 download circuit, which is simple to use. The operational amplifier LM358 realizes constant current 0.3A drive.
2. Made a circuit that integrates the development and debugging of the voice module and has certain practical functions, realizing voice control of the steering gear switch light and voice control of the night light.
3. It can be used in student dormitories and homes where direct control of 220V circuits is inconvenient for indirect control to achieve smart homes and improve life convenience.
4.VC-02 peripheral circuit refers to AIHandy! Solution, the constant current part refers to the constant current DC electronic load on the Internet.
For the schematic design of
the high-brightness LED, I used a 1W LED, which works normally around 3V, so I set a constant current of about 0.3A. The specific constant current value can be controlled through R8, R11, and R15, that is, when the partial pressure on R8 is equal to the partial pressure on R11 Achieve constant current state. PCB design
In PCB design, pay attention to the differential routing of RX and TX. It is best to route the power lines above 20mil (0.508mm). The frame layer can be exactly adapted to the size of your own switch so that it can be directly embedded in it without additional fixing. At the same time, pay attention to the position of each terminal and consider the actual placement when making arrangements. Finally, pay attention to the countersunk welding method for in-line components when welding, and do not leave protrusions on the back. The library of 1WLED lamp beads was drawn by myself (because I couldn’t find it). For other lamp beads with different wattage, please draw
 
a 3D rendering according to the relevant information
. Notes on the physical display.
Note
that the size of the shell is suitable for your own home switch
. Note that the back uses countersunk head welding
for serial port control. WS2812 is still being debugged. If nothing can be done in the end, it may require secondary development under the Linux system. I am still learning.
Note that when burning the VC-02 serial port, you must read the introduction to the first serial port burning in the .pdf file in the folder with the same name of the serial port burning software. If you do not follow the process, it will be 100% bricked.
The relevant attachments
are attached to Anxin The official website development information of the voice module
https://docs.ai-thinker.com/voice_module
is attached with the firmware and demonstration video I burned
as well as the professional version of the project files.