Friday, January 21, 2022
RTL-Software Defined Radio and Android setup

Software-Defined Radio with Android Smartphones

Software-defined radio (SDR) is one of the most important wireless communication technologies. It is a unique type of radio system that can tune to any frequency band. The SDR platform is...

Brake Failure Indicator

Do you want to get an early warning of brake failure while driving? Here is a brake failure indicator circuit that constantly monitors the condition of the brake and gives an...
Car stereo player circuit

Car Stereo Player Circuit

Using a mobile phone while driving is dangerous. It is also against the law. However, you can use your mobile phone as a powerful music player with the help of a...
Fig. 3: Schematic Circuit diagram of the laser light security alarm system

Laser Light Security Alarm

The aim of this article to make a laser light security alarm and it can also be used as a home security system. The essence of this project is that anyone...

Make This Automatic LED Staircase Light

Going up or down a staircase can be a challenging task at night, especially for kids and elderly people. This Automatic LED Staircase Light circuit lights up two LEDs, one at...
Electric projects

Top 35+ Electrical Engineering Project Ideas

Engineers are always in search of projects, and finding meaningful projects makes that search worthwhile. Listed below are some electrical engineering project ideas for such engineers. A lot of them may...


The circuit presented here can be used for connecting two tele phones in parallel and also as a 2-line intercom. Usually a single telephone is connected to a telephone line. If another...
Multimedia Speaker circuit

PC Multimedia Speaker

This is a circuit for USB compatible low cost and low power multimedia speakers for PC.
Author Prototype for 14-Watt Hi-Fi Audio Amplifier Using TDA2030A

14-Watt Hi-Fi Audio Amplifier Using TDA2030A

Here is a simple mono audio amplifier using a single 5-pin IC TDA2030A. This IC is inexpensive and easily available in the market. The author’s prototype, which gives 14W output, is...
single-side PCB for the brushless DC motor driver

Brushless DC Motor Driver

Use of brushless DC motors (BLDCs) is on the rise. But their control usually requires rotor position information for selecting the appropriate commutation angle. Normally, a Hall Effect sensor is used...

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