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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.

WATER-LEVEL INDICATOR USING 7-SEGMENT DISPLAY

This water-level indicator uses a 7-segment display, instead of LEDs, to indicate the water level (low, half and full) in the tank. Moreover, a buzzer is used to alert you of...

FULLY AUTOMATIC EMERGENCY LIGHT

This simple automatic emergency light has the following advantages over conventional emergency lights: 1. The charging circuit stops automatically when the battery is fully charged. So you can leave the emergency light...
humidity sensor

Humidity Sensor: Basics, Usage, Parameters and Applications

Sometimes, after rains, the air feels moist. The water seems to have suspended in the air. However, in certain AC’s you click some buttons and the atmosphere brightens up. How and...

Twinkle Twinkle X’mas Star

Christmas just would not be Christmas if you do not put a flashing star on your Christmas tree. Here is the circuit of such a flashing star. Fig. 1 shows the circuit...

Qi Versus power 2.0: Who Will Win the Wireless Charging Challenge?

  You place your phone on your bedside table, and it automatically starts charging. You place your hand-blender on the kitchen counter-top and it charges itself. You walk into a coffee shop...

Mains Operated Remote Control Tester

This handy remote control tester responds to the signal received from any infrared hand-piece (IR remote control). Circuit and working Fig. 1 shows circuit diagram of the remote control tester. It is built...

High-Resistance Meter

This resistance meter can measure resistances up to 200 mega-ohms. The value of the resistance is indicated on a linear meter scale (0-100 uA). The operation of the circuit is based...

Active Reflector for Pedestrian Safety

Pedestrians crossing roads in badly-lit areas, particularly at night or in the early morning, run a risk of accident. There are readymade arm bands available that reflect the light of incoming...

Make Your Own Air Quality Monitoring Device!

Air pollution and concern about air quality is not something new. Complaints were recorded even in the 13th century when coal was first used for industrial purposes in London. From the...

555 Timer PWM Audio Amplifier

The “555” integrated circuit is a general-purpose timer useful for a variety of functions. In this 555 audio PWM project, we explore its use as an astable multivibrator. The ubiquitous 555...

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Real Time Face Recognition Using Python And OpenCV

real time face recognition
A real time face recognition system is capable of identifying or verifying a person from a video...

Time For a Break

This is a computer based program to remind you to take regular breaks while working on your...

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...

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