8AT89C52,ADC0809　8路数字电压表测量由A/D转换、数据处理及显示控制等组成，测量0～5V范围内的8路输入电压值，由4位共阳LED数码管轮流显示，最大分辨率0.01V，误差±0.02V。-8AT89C52, ADC0809 8 way digital voltage meter measured by A/D conversion, data processing and display control of the measurement range of 0 ~ 5V inpu

一个数字电压表的应用程序 采用12位AD TLC2543采集电压 串行通讯 C51单片机实现 可实现自动报警功能-A digital voltmeter application uses 12 AD TLC2543 collect voltage C51 MCU serial communication can realize automatic alarm function