18-10-2014, 01:57 PM
Abstracts: Statistician use special formulate to calculate the approximate number of people coming to an leaving a place at a given time.But none of this formulas can give 100% accurate and precise results. It is impossible to manually count the same. But now modern machine can do what man cannot. The circuit described here is meant to do just this very thing. The circuit can count upto almost 10,000 persons entering or leaving a place or can be used to count the number of articles passing on a conveyer belt etc. The unit has unlimited application in almost all fields of industrialization.The counting capability can be increased to any number as per application.The complte circuit is based on popular timer IC555 and CMOS IC4033 and high quality IR pair.