51 single chip WS2812RGB running water lamp

1. System block diagram
 
 
2. Project description
The running water lamp uses a full-color LED with built-in WS2812, which is driven by a single line. The driving timing requirements are relatively strict. This project uses the PWM inside the microcontroller for driving, and the timing is used according to the values ​​required in the RGB lamp manual. The logic analyzer has been carefully debugged to ensure that there will be no data transmission errors;
in terms of hardware, do not solder the parts marked DNI in the schematic diagram. The reserved position is convenient for using other methods such as SPI and serial port mode 0 to drive RGB lights;
burning When recording the program, please note: Select the 24MHz frequency in the STC programming tool, and use the reserved test points for programming.
    3. Button description:
                        K1: Switch the running water lamp style
                        K2: Switch the monochrome mode on and off
                        K3: Switch the brightness in the monochrome mode
 
3. Open source file description
Unzip the compressed package into several directories as shown above:
        device: button and RGB lamp driver
        project: keil project and project files developed using the EIDE plug-in in VSCode
        system: system file main.c and other
        hardware: schematic, BOM, Gerber
        information: data manual and other
         program files
 
 
4. Purchase links for some components
1. MCU:
https://m.tb.cn/h.UskVxr2?tk=KHqYdPjn5ct
2. Button
https://m.tb.cn/h.UIrU3Ef?tk=k01JdPjMUCN 
3. USB interface (MicroUSB with positioning post)
https ://m.tb.cn/h.Utd7jSC?tk=3uC9dPjnv44