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detection alarm circuit

Smoke, Alcohol and LPG-Detection Alarm

Presented here is a circuit for raising an alarm on detecting smoke or LPG cooking gas leakage, or even alcohol vapours in breath. This...

Optical Smoke Alarm

An optical smoke alarm (also called photo-electric smoke alarm) works using the light scatter principle. The alarm contains a pulsed Infra red LED which...

Solve Electrical Circuits With Solve Elec

Solve Elec, as the name says, is a software that makes the task of dealing with electrical designs a lot easier. Right from the...
low cost high impedance buffers circuit

Low Cost High Impedance Buffers for Oscilloscopes and Voltmeters

Most of the low cost digital oscilloscopes and voltmeters have input resistance around 1 MOhm and input capacitance around 100pF. But in many case...
Bipolar power supply

Bipolar Power Supply with LM317T and with LM337T Controllable with Stereo Potentiometer

LM317T and LM337T are well known and low cost adjustable voltage regulators with current limiting up to around 1.5A and power dissipation up to...

Simple Low-Noise Audio-Distribution Amplifier

This article describes a low-cost audio-distribution low noise amplifier based on hybrid or mixed technology. Input to the amplifier is from low-noise, high-gain npn transistor....

Tiny Nano-Power OpAmp Boosts Sensing Accuracy, Consumes Negligible Space and Power

New Delhi, December 13, 2016 - With its tiny 1.2mm x 1.3mm outline and typical current of only 900nA, the TSU111 nano-power opamp from...

Implementing a Low Cost, Battery Powered, TDS Meter Using MCU and PSoC

One of the common method in determining the quality of water is the measurement of Total Dissolved Solids (TDS). TDS meter is a widely...
eee projects

World’s Top 20 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...

Enkindle Your Appetite For The IoT

RIOT RIOT is a free open source operating system (OS) based on micro-kernel architecture. It is designed specifically for powering the Internet of Things (IoT)....

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