This design is basing on simple voltmeter with core of the MCS-51 monolithic integrated circuit. In examines and the automatic control application system, the monolithic integrated circuit is often used as the core part, having the hardware disposition and the software programming and some other formidable function. Certainly, Just the monolithic integrated circuit is merely insufficient, consummates according to the hardware architecture and the goal function as well as other software and hardware's union are also important.
The simple voltmeter is used to transform the simulated signal to the digital signal.Then after the monolithic integrated circuit processing, the result demonstrates on monitor.
This article introduced this simple voltmeter's working principle , the development environment, A/D transformation and the MCS-51 monolithic integrated circuit.
Keyword: Simple voltmeter, MCS-51 , A/D change
