The article discusses how to make a simple laser communicator circuit for sending and receiving data through laser beam. Laser has been a boon since its invention. Laser is used […]
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Laser Diode Driver Circuit
The current controlled circuit of a laser pointer power supply explained in the following post was requested by Mr. Steven Chiverton (stevenchiverton@hotmail.com), who himself is an intense electronic hobbyist and researcher. Technical […]
Laser Beam Light Activated Remote Control Circuit
The following post illustrates a simple light toggled/operated remote control circuit, which can be activated by an ordinary flashlight or more effectively through a laser beam unit (key chain type). […]
Make this Drag Race Timer Circuit
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 […]
Vehicle Parking Lot Counter Circuit
In this post we are going to learn how to construct a vehicle counter circuit that can count the number of vehicles entered in a parking lot at office building, […]
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 […]