Voltage and current meters based on the [LCSC GeoStar-CW32F030C8T6 development board]

Project Introduction:
This was my first attempt at a development board training camp. Using the LCSC CW32F030C8T6 development board from Wuhan Xinyuan Semiconductor, I built a digital voltmeter and ammeter.
The project adopted a core board plus expansion board design concept, with the domestic Wuhan Xinyuan Semiconductor CW32 as the main controller.
Hardware Design :
Power Supply Circuit
: This project used an LDO as the power supply, selecting the SE8550K2 with a maximum input voltage of 40V.
Voltage Sampling Circuit
: The voltage divider resistors were designed as 200K+10K, resulting in a voltage division ratio of 20:1 (ADC_IN11).
Display Section:
This project used a digital tube as the display unit.
Voltage Measurement and Calibration: TL431 Circuit Design
Software:
Through Keil, I learned about LED driving, button detection, digital tube display (both digital and dynamic), ADC sampling and display, and the calibration function of the digital voltmeter and ammeter, successfully lighting up the CW32 digital voltmeter and ammeter.
My software skills were relatively weak, but I learned a lot by following the instructor's guidance.
In summary
, for an individual hobbyist like myself, this was the first training camp I participated in after the thermometer and hygrometer training camp project. This project was slightly more difficult than the previous one. I made some changes to the project packaging this time, gradually progressing from the basics, and I expect it to get better with time. I am very grateful for the support from JLCPCB, LCPCB EDA, Wuhan Xinyuan Semiconductor, and LCPCB development boards. I learned a lot and hope to further improve my skills. [
Video
: Voltage and Current Meter Based on LCPCB CW32F030C8T6 Development Board] https://www.bilibili.com/video/BV1qYWjeZEKE/?share_source=copy_web&vd_source=7c97e6f608262807ac798427fadf6426