HomeEngineering Projects For YouMEGA COLLECTION OF ELECTRONICS DIY PROJECTS

MEGA COLLECTION OF ELECTRONICS DIY PROJECTS

Every week, we publish 2 to 3 projects, sometimes even more! They range from simple circuits for beginners, to advanced projects that you can use to develop complete innovative products! Most projects have been developed by enthusiasts like you. Some by experts. And, some by our team. Many are tested at EFY Labs, and some are not–but they typically have a proof-of-concept video.

Aquatic Probe Circuit

A number of environmental factors including light and temperature affect fish culture. The temperature of water has profound effect because fish cannot breed above...

Geyser Timer Circuit

This geyser timer circuit sounds an alarm after the set timing of 22 minutes when the water is heated up. Geyser timer circuit The circuit comprises...

Electronic Fuse Circuit

An absolute necessity of every electronics lab is a workbench power supply. The power supply should be regulated and protected against short circuit. Most...

Liquid Level Alarm

In water-level controllers for tanks, a DC current is passed through the metallic probes fitted in the water tank to sense the water level....

Electronic Dog Whistle Circuit

A dog whistle is a type of whistle that emits sound in the ultrasonic range, which people cannot hear but some other animals can,...

IC 555 Timer Tester

This simple and easy-to-use IC 555 timer tester not only tests the IC 555 timer in all its basic configurations but also tests the...

Acoustic/Mechanical Vibration Sensor

This circuit contains a piezoelement that detects any vibrations in the shutter of a shop and activates a lamp and a police tone alarm signal.

Zener Value Evaluator

Using this simple Zener value evaluator circuit and a known-value zener diode, you can find the breakdown voltage value of any zener diode. The...

Capacitor Evaluator Circuit

Using this circuit and a known-value capacitor, you can find out the value of any capacitor. This circuit can be divided into capacitor evaluator...

Desktop Power Supply Circuit

Useful for electronics hobbyists, this linear workbench/ desktop power supply converts a high input voltage (12V) from the SMPS of a PC into low...

Inexpensive Car Protection Unit

For car protection, custom made units are available but they are costly. Here’s an inexpensive car protection unit to protect car stereo, etc. from...

Noise Muting FM Receiver

The tuning of a frequency modulated (FM) receiver to a FM radio station frequency involves a lot of ‘hissing’ noise in between the stations,...

Doorbell cum Visitor Indicator Circuit

This doorbell cum visitor indicator circuit can also give identification of the visitor to your home in your absence. When you’re home, you can...

PC Temperature Alarm Circuit

This circuit uses a temperature sensor to detect the temperature inside the PC and generates an alarm if the temperature exceeds a pre-set limit.

Automatic Lighting Fence Circuit

This circuit can sense the movement of a person within the range of three metres from a fence and produce a tone from the buzzer. This is used as a security system.

Automatic Off Timer For CD Players

This is a circuit that initiates a timer for turning off CD player as soon as the bedroom light is turned off.

BODMAS Rule Circuit

BODMAS rule is an acronym to help children to remember the order of operations in calculations.. The term BODMAS stand for bracket, of, division,...

Electronic Door Key Circuit

This circuit is basically a short-range, infrared remote-controlled electromagnetic relay driver. It can be used to control door motors or solenoid-based locks using a compact and handy remote handset.
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