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.
Sunset Lamp
LDR-based automatic lights flicker due to the change in light intensity at dawn and dusk. So compact fluorescent lamps (CFLs) are unsuitable in such...
Automatic School Bell
Consider that a school has a total of eight periods with a lunch break after the fourth period. Each period is 45 minutes long,...
Water Level Controller-Cum-Motor Protector
Many a time we forget to switch off the motor pushing water into the overhead tank (OHT) in our households. As a result, water...
Smart Emergency Light
An emergency light can come in handy at all sorts of time, especially when there's a power outage. Now you need not fear dark...
Long Range FM Transmitter
Several circuits for constructing FM transmitter have been published in EFY. The power output of most of these circuits were very low because no...
PC Based Timer
Timers are very useful both for industrial applications and household appliances. Here is a PC based timer that can be used for controlling the...
Numeric Water Level Indicator
Most water level indicators for water tanks are based on the number of LEDs that glow to indicate the corresponding level of water in...
Secured Room Access System
Security is a prime concern in our day-to-day life. And access control system forms a vital link in a security chain. The microcontroller based...
Cellphone Operated Land Rover
Conventionally, wireless-controlled robots use RF circuits,which have the drawbacks of limited working range, limited frequency range and limited control. Use of a mobile phone...
Pressure Sensors on Railway Tracks
Every year thousands of animals die after being hit by trains. Animals on train tracks are dangerous for both animals and the train as...
Simple Event Counter
Microcontroller based miniscule event counter presented here is based on the inexpensive Digispark Attiny development board. One advantage of this design is that any...
FM Booster
An antenna amplifier boosts a radio signal considerably for devices that receive radio waves. Many devices have an RF amplifier stage in their circuitry, that...
Door Guard
This door guard uses operational amplifier µA741 and a light-dependent resistor (LDR). Operational amplifier µA741 is used as a sensitive voltage comparator. Preset VR1...
Electronic Bicycle Lock
The electronic bicycle lock described here is a worthwhile alternative for bicycle owners who want to make their bicycles 'intelligent' at reasonable cost. One...
Electronic Watch Dog
Here’s an electronic watch dog for your house that sounds to inform you that somebody is at the gate. The circuit comprises a transmitter...
Dual-Channel Active AC Analog Probe
Presented here is a low-cost, dual-channel, active AC analog probe. It is suitable for oscilloscopes, multimeters and other analogue measurement equipment.
When experimenting with AM...
IoT Based Notification System Using Android App
Presented here is a smart notification system for a door sensor, motion detector, fire alarm and doorbell using Raspberry Pi (RPi) and Pushover app....
Electrolysis-Free Water Level Alarm
In most water level monitors and alarms, corrosion of the probes makes the systems unusable in a few months. This water level alarm uses...