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Engineering Projects For You

Free engineering project ideas, circuit diagrams and software codes for students and hobbyists. Complete instructions on DIY electronic devices. EFY tested circuits with source codes.

WASHING MACHINE MOTOR CONTROLLER

Washing machines usually employ a single-phase motor. In semi-automatic washing machines, a purely mechanical switch controls the timing and direction of the motor. These switches are costly and wear out easily. Here’s...

SIMPLE INTERCOM CIRCUIT

The circuit of a two-position intercom is presented here. This circuit is very simple yet it functions quite satisfactorily. The circuit does not involve any complicated switching. The switches S1/S2 must...

Parked-Vehicle Highway Flasher

Often, at night, a speeding vehicle rams into another vehicle parked at the edge of a highway. Cars have parking flashers, but trucks, buses and loading rickshaws rarely have any form...

WATCH MAN WATCHER

Here is a circuit that can be used in offices, stores, warehouses, etc during night to check whether the watchman of your establishment is on duty. For operation, it uses an...
high speed PCB design

High Speed PCB Design For Electromagnetic Compatibility (Part 1 of 5)

In the world of electronics goods, where margins are razor thin, manufacturers try to keep product cost low to maintain a competitive edge. In a bid to achieve this, they tend...

Standby Power-Loss Preventer

Electronic devices consume some power even in the standby mode, i.e., when they have been switched off using a remote handset but not the mains power switch. For instance, when a...

Verilator

Verilator is a Verilog hardware description language (HDL) simulator that can compile synthesisable Verilog code into C++ or SystemC. It is designed primarily for high-performance simulations, and supports simple assertions and...

Analogue Capacitance Meter

The principle of operation of this meter is based on pulse-width modulation. Larger the capacitance, higher is the pulse-width and vice-versa. The meter given here has one oscillator and two one-shot...

Sensitive Optical Burglar Alarm

This optical burglar alarm uses two 555 timer ICs. Both the ICs are wired as astable multivibrators. The first astable multivibrator built around IC1 produces low frequencies, while the second astable...

CELL-PHONE-CONTROLLED AUDIO/ VIDEO MUTE SWITCH

This cell-phone-controlled audio/video mute switch is highly useful in automobiles. The circuit automatically disconnects power supply to the audio/video system whenever the mobile handset is lifted off the holder for making...

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LATEST SOFTWARE PROJECTS

USB Interface Using Python Software

This is a simple transistor’s output characteristic curve-tracer program through the interfacing of USB and PIC microcontroller...

Top 20 Computer Engineering Projects

Computer Engineering Projects
Computer engineering is a discipline that integrates several fields of electrical engineering and computer science required to...

Ultrasonic Distance Meter Using Raspberry Pi 2

Ultrasonic ranging module HC-SR04 provides 2cm to 400cm non-contact distance measurement range. Its accuracy can reach ±3mm...

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