数字电压表程序（基于TLC549） 最大量程电压：5.10V-DVM program (based on TLC549) the largest-scale voltage: 5.10V

关于数字电压表的制作，源程序，相关的仿真图未附上，利用adc0808来转换的，精度足够高。-Digital voltmeter on the production of source code, related to the simulation diagram is not attached, use adc0808 to conversion, the precision is high enough.

通过ICL7135实现高精度AD转换，实际应用为高精度数字电压表-ICL7135 precision AD conversion, the practical application of high-precision digital voltmeter