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.
Arduino Based GSM Home Security System
This project is designed using normally-closed reed switches connected to doors and windows and additional passive infrared (PIR) motion sensors to detect movement of...
12V Battery Charger-cum-Variable Power Supply
The 12v battery charger-cum-variable power supply circuit presented here can charge a 12V lead-acid battery of 50Ah to 80Ah (even up to 100Ah) capacity...
Remote Control for Toy Car
Make any battery-operated toy car remote controlled using this circuit. This remote controlled toy car circuit, consisting of an infrared transmitter-receiver pair, uses IR...
Remote-Controlled Smartfan Using AT89C2051
The remote-controlled smartfans available in the market are very expensive and their operating principles are difficult to understand. Here is a simple circuit for...
Noise Level Alarm
Noise is a serious environmental problem that affects us in our daily life. There is scientific evidence supporting that noise exposure can cause hearing...
Voice Recorder and Playback System
There are several types of voice recorder and playback systems available in the market but most of them are expensive and their circuits are...
Low Power Voltage Doubler
All miniature electronic devices operate off batteries. Some of them need higher than the standard battery voltages to operate efficiently. If the battery of...
Top 19 Arduino Projects To Build In Your Free Time
We compiled a list of 19 Arduino projects that would be cool to design. If you have an Arduino lying around or are planning...
Wireless Doorbell
Installing a doorbell in an existing building is a difficult task as it involves wiring that can look shabby if not concealed properly. Presented...
LED As Light Sensor
Usually light dependent resistors (LDR) and photodiodes are used as light sensors to activate or deactivate circuits based on the presence or absence of...
Cistern Overflow Alert System
The overflow alert system presented here will electronically monitor cistern (tank that holds water to flush the toilet) overflows that can otherwise cause seepage...
School/College Quiz Buzzer
Manual buzzers used for quiz competitions in schools and colleges create a lot of confusion in identifying the first respondent. Although there are circuits...
Wireless Video Surveillance Robot using Raspberry Pi
This project builds a Video Surveillance robot that can be controlled via wireless remote control and can be used for video surveillance also.
Video surveillance...
IoT Based Smart Camera Using Android And Raspberry Pi
Presented here is a project that lets your Raspberry Pi (RPi) turn into an IoT based smart camera and then control and watch live...
81 LED Chaser Light Using CD4017
This is a simple CD4017 based LED light using NE555 timer for clock generation. We have used only two CD4017 ICs to construct the...
Infrared Object Counter
This infrared object counter can be installed at the entry gate to count the total number of people entering any venue. For example, it...
Over/Under Voltage Protection of Electrical Appliances
Presented here is an under/over-voltage protection circuit that protects refrigerators as well as other appliances from under & over-voltage. Operational amplifier IC LM324 (IC2)...
Moisture Monitor for Plants
Over-watering and under-watering both are harmful for plants. Roots need air as well as water. If the soil is constantly saturated, air cannot reach...