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laser security system

Dual-Laser Security System Using An Old Feature Phone

A security system having a single laser beam may not be very effective as any moving object or animal can interrupt it, causing a...
Embedded Systems Projects

Embedded Systems Projects | Embedded Systems Project Ideas

Embedded systems are always in demand with students. The final year electronics engineers begin with a frantic search for embedded systems projects and ends with...
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...

Sound-Operated Timer

This sound-operated timer is based on LM324 quad-operational amplifier and NE555 timer. Time delay can be set from a few seconds to 30 minutes....
intelligent level controller circuit

Intelligent Water Pump Controller with Water-level Display

Most of the circuits for intelligent level controller for water in tanks employ a bunch of wires running between the circuit and the overhead tank,...

IR Remote Control for Home Appliances

Most remote controls around us, use IR for signal transmission. An IR remote control for home appliances helps you connect to your decices at...

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...

Wireless Doorbell

Installing a doorbell in an existing building is a difficult task as it involves wiring that can look shabby if not concealed properly. Presented...

81-LED Chaser Light Using CD4017

This is a simple 81-LED chaser light using two CD4017 decade counters. NE555 timer is used for clock generation for CD4017. We have used...

Wireless Digital Thermometer For Multiple Sensors

A lot of remote sensing thermometers have a problem with measuring more than one temperature at a time. To overcome this problem, a different technique...

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