Circuits DIY – Page 352

H-bridge is a circuit that allows a current to flow in both directions across the load. These circuits are frequently used in robotics to al…

A Phototransistor is a semiconductor device that is sensitive to light. It alters the current flowing between the emitter and collector, acc…

In this tutorial, we are going to design a burglar alarm circuit. This circuit detects an unauthorized entry of any person into the houses o…

Remote control devices are usually based upon one of two main types of technology: radio frequency (RF) technology or infrared (IR) technolo…

This Tutorial demonstrates the simple and useful security alarm based on Infrared radiation using 555 Timer IC. The circuit uses an Infrared…

This tutorial explains the working of a Push-button. It also explains the use of the push-button circuit. In the tutorial, a push-button con…

In this tutorial, we are going to make a dark and light indicator circuit. This project indicates whether there is darkness or light in the…

In this tutorial, we are going to design a soft touch switch circuit. By soft touch, it means that one has to push the button once to set th…

An IR Transmitter and receiver control any device remotely. Infrared communication is a very common, easy-to-use, and inexpensive wireless c…

In this tutorial, we will learn how to make a simple metal detector circuit. These metal detector circuits are being used in plenty of place…

In this tutorial, we are going to design a Simple Doorbell circuit using a 555 Timer IC. It is a very common and useful device. Almost every…

In this project, we are going to design a TV remote jammer circuit. This is a very simple circuit and an interesting concept. The circuit st…

In this example, a one-bit memory cell circuit is designed by using a 555 Timer IC. One Bit memory cell is also called a basic bistable elem…

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