002---基于stm32电压表设计

代码说明：

说明：  基于stm32单片机电压表设计,AD检测分压电阻电压值，根据电阻分压比算出所测电压，并显示在oled液晶上(Based on the design of voltage meter of STM32 single chip computer, AD detects the voltage value of dividing resistor, calculates the measured voltage according to the ratio of dividing resistor voltage, and displays it on OLED liquid crystal.)