Running water lamp 12

The production of this running water lamp is mainly realized using NE555 and CD401, and no code is needed to implement it. The general principle is that EN555 acts as a signal generator and continuously outputs a square wave pulse signal after power on, and then the pulse signal is input to CD4017. CD4017 is a decimal counter. When it receives the pulse square wave, it will start from 0-9. Output a high level. When the output is a high level, the LED light will be on. When the output is a low level, the LED light will be extinguished. If the high and low levels are continuously output, the LED light will flash from L1 to L10 in sequence, and then start again. Through the potentiometer, changing the ratio of the two resistors changes the charging and discharging time ratio of the capacitor, thereby controlling the frequency of LED flashing.
Through this activity organized by Hebei University Science and Technology Innovation Association, I learned how to use Lichuang EDA and made a DIY object by myself. In the process of using Lichuang EDA, I feel that this software is very convenient to use. It is very easy to get started, and you can make this flowing water lamp in just one afternoon of study.
The problem I encountered during the actual production process was that there would be weak soldering during welding. This can be adjusted under the guidance of my senior. Finally achieve the desired effect.