In this post we are going to build a drag race timer circuit using a 7 segment display and commonly available discrete components which can measure the time taken for a car or any other vehicle from start line to finish line. The proposed circuit is fully automatic, meaning it can start and stop the […]
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Vehicle Parking Lot Counter Circuit
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 […]
Visitor Counter Circuit Using IC 555 and IC 4026
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 […]
Visible Light Communication Circuit [using InfraRed]
You can use this simple visible light communication circuit to send audio and digital information through infrared light, beyond a mile away, with extreme precision. By Sunil Rao The main features of the light communicator circuit can be understood with the following points: Output power = 5 millwatts Frequency Modulation Operation with 50 kHz carrier […]
How Contactless Infrared Thermometers Work – How to Make One
In this post I have explained the basic working concept of thermal scanners or contactless IR thermometers, and also learn how to make a practical DIY prototype of the unit without Arduino. In the post COVID-19 era, witnessing doctors holding a contactless temperature gun and pointing toward the forehead of a COVID-19 suspect is a […]
Best Electronic Circuit Projects
Whether a newbie or a professional, if you are looking for the best electronic circuit projects, as per your specific needs, you have reached the right destination. Here, I will not only provide you with your favorite circuit projects, but also provide an active online support for solving all your queries and doubts related to […]
