Graduate the program of design is "the design of digital voltmeter ". Check on the condition for the aspects such as Chip Processor technology and programming ability mainly. Observe actual programming ability as well as the ability of independent analysis and design Chip Processor.
This program solves the data handling and conversion of A/D mainly and shows the 3 modular such as control. Control system adopts AT89C51 only flat machine, the conversion of A/D adopts ADC0808.
In Chip Processor technology booming today，Both that of many electronic products production still tend to integration and downsizing.It was electronic vocation suffer indispensable electron device that digital voltmeter.This time experimental fell out：Display module could show me need for cost, and through the medium of step steric modulate enlarge primary voltage measurement scope to bare.Although basic manage this time experimental require, in addition some aspect await advanced.For instance，how to bump large voltage input measuring accuracy，how about measuring alternating voltage cost up.The importance content of the these all needs keep on lucubrate.
