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Mobile Sniffer

This mobile sniffer circuit can detect the use of a GSM mobile in mobile-phone-restricted areas such as examination halls and other ‘do not disturb’...

TINY DEW SENSOR

Dew (condensed moisture) adversely affects the normal performance of sensitive electronic devices. A low-cost circuit for a dew sensor described here can be used...
Electrical Engineering Projects

Electrical Engineering Projects | 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...

Operational Amplifier Gain And DC Offset Program

Presented here is a program to find the gain and DC offset values of an operational amplifier (or op-amp). While doing practical electronics experiments,...

Simple DC To DC Converter For Microcontroller Kit

This article describes a simple, low-cost DC to DC converter for a microcontroller (MCU) kit. This converter is built around popular NE555 timer. It...

LED As Light Sensor

Usually light-dependent resistors (LDRs) and photodiodes are used as light sensors to activate or deactivate circuits based on the presence or absence of light....

Optical Smoke Alarm

This optical smoke alarm (Fig. 1) is built around opto-interrupter MOC7811 (IC1) and dual op-amp LM358 (IC2). When thick black smoke enters in the gap...

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...

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...

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