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Vehicle Parking Lot Counter Circuit

Last Updated on August 30, 2021 by Swagatam 2 Comments

block digram compressed

In this post I have explained how to construct a vehicle counter circuit that can count the number of vehicles entered in a parking lot at office building, schools, libraries, restaurants, hotels etc. The proposed project can count up to 999 vehicles especially cars and two wheelers and it can even count long vehicles like […]

Filed Under: Automobile Electronics Tagged With: Counter, Parking, Vehicle

Visitor Counter Circuit Using IC 555 and IC 4026

Last Updated on May 26, 2022 by Swagatam 6 Comments

Block compressed

A visitor counter is a machine that counts the of number people who visited a place. Visitor counters are usually installed at the entrance and exit points of commercial buildings such as shopping malls, theme parks, museums, Airports, schools, departmental shops and other business etc. The registered counts on the machine are used for business […]

Filed Under: Mini Projects Tagged With: 4026, 555, Counter, Visitor

5 Digit Frequency Counter Circuit

Last Updated on August 10, 2021 by Swagatam 1 Comment

5 digit counter circuit

This digital frequency counter will provide a direct reading of the frequency applied at its input, through a 5 digit common cathode display module. The compact frequency counter can be used for accurately counting the frequency or pulse from any intended source. Main Applications It can be also used for measuring the RPM of a […]

Filed Under: Meters and Testers Tagged With: Counter, Digit, Frequency

Pressure Cooker Whistle Counter Circuit

Last Updated on January 1, 2024 by Swagatam 36 Comments

pressure cooker whistle

This circuit is designed to sense the whistles from a pressure cooker and count the number over a digital display. The system relieves the user from the stress of constantly monitoring the cooker and from manually counting the whistles. The idea was requested by Mr. P.K. Bajpai Design Concept In many of the Asian countries […]

Filed Under: Home Electrical Circuits Tagged With: Cooker, Counter, Pressure, Whistle

How to Make a Transformer Winding Counter Circuit

Last Updated on June 23, 2019 by Swagatam 17 Comments

In this post I have explained how to make a simple transformer winding counter circuit using ordinary LEDs and also through an advanced digital display circuit. The idea was requested by one of the dedicated readers of this blog Circuit Objectives and Requirements I want a circuit which counts a number of turns for winding […]

Filed Under: Sensors and Detectors Tagged With: Counter, Transformer, Winding

0 to 99 Digital Pulse Counter Circuit Diagrams

Last Updated on January 21, 2025 by Swagatam 27 Comments

0to99countercircuit

The proposed 00-99 digital pulse counter circuit becomes very handy in places where you need to keep the people organized in some specified order. Operating details of the digital counter As may be referred the circuit employs the popular 555 IC to genearte the pulse clocks. The pulse counting is done with the help of […]

Filed Under: Meters and Testers Tagged With: Counter, Diagrams, Digital, Pulse

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