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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.

ULTRA-BRIGHT LED LAMP

This ultra-bright white LED lamp works on 230V AC with minimal power consumption. It can be used to illuminate VU meters, SWR meters, etc. Ultra-bright LEDs available in the market cost...

Garage Light and Security Control

Useful for vehicle owners, this gadget automatically turns on indoor/outdoor garage lights and raises an alert when an automobile enters the garage. Assume switch S2 is in ‘on’ (closed) state. When power...

LED Sand-Glass Timer

This circuit (Fig. 1) simulates the old sand-glass timer. A total of 32 LEDs create the effect of sand grains passing from the upper half of sand-glass to its lower half. When...

PWM-Based Speed Control for DC Motors

There are several methods for controlling the speed of DC motors. One simple method is to add series resistance using a rheostat. As considerable power is consumed in the rheostat, this...

Infrared Proximity Detector

This proximity detector using an infrared detector (Fig. 1) can be used in various equipment like automatic door openers and burglar alarms. The circuit primarily consists of an infrared transmitter and...

Precision 1HZ Clock

This precision 1Hz clock uses just two ICs and one junction field-effect transistor (JFET) in conjunction with a commonly available crystal and a handful of other passive components. The Pierce-type crystal oscillator...

INTRUDER RADIO ALERT SYSTEM

Consider a situation where a burglar has entered your house and snapped the telephone wires, leaving you with no means of communication with the outside world. In such an emergency, you...

FLASHING BEACON

A flashing beacon has many uses. It can be employed as a distress signal on highways or as a direction pointer for parking lots, hospitals, hotels, etc. Here we present a...

INFRARED TOY CAR MOTOR CONTROLLER

This add-on circuit enables remote switching on/off of battery-operated toy cars with the help of a TV/ video remote control handset operating at 30–40 kHz. When the circuit is energised from a...

MAINS MANAGER

Very often we forget to switch off the peripherals like monitor, scanner, and printer while switching off our PC. The problem is that there are separate power switches to turn the...

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LATEST SOFTWARE PROJECTS

IoT Based Notification System Using Android App

Presented here is a smart notification system for a door sensor, motion detector, fire alarm and doorbell...

Smart Receptionist With Smartlock System

Presented here is a security system that lets you see a visitor while your main office...

USB Interface Using Python Software

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

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