Free Project Circuits

We all have a doorbell at our homes. When a visitor comes to our house, he searches for the doorbell switch and then rings it

DTMF based Load Control System using 8051 Microcontroller is a simple project that helps is controlling different loads (electrical appliances) with the help of DTMF

In the previous 8051 Microcontroller Tutorials, we have seen some basics of 8051 Microcontroller and also the Pin Diagram and Pin Description of 8051 Microcontroller.

The Water Level Indicator employs a simple mechanism to detect and indicate the water level in an overhead tank or any other water container. The

A Line Follower Robot, as the name suggests, is an automated guided vehicle, which follow a visual line embedded on the floor or ceiling. Usually,

Light Detection and Ranging, or LiDAR, is a cutting-edge technology that uses laser pulses to map the surroundings in three dimensions and estimate distances. LiDAR

In a little town surrounded by hills, people are worried about storms and lightning. An old person shared stories about a special protector called a

Here we are building a wireless FM transmitter which uses RF communication to transmit the medium or low power FM signal. The maximum range of

In this project, we have designed a simple 230V LED Driver circuit, which can drive LED directly from the mains supply. An LED is a

A Temperature Controlled DC Fan is a system which automatically turns on a DC Fan when the ambient temperature increases above a certain limit. Generally,