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.
Top 15 Raspberry Pi Projects Ideas For Engineers
Raspberry is a development board that has made a lot of noise since its introduction to the public. The cost and the wide support...
IR Remote Control for Home Appliances
Most remote controls around us, use IR for signal transmission. An IR remote control for home appliances helps you connect to your decices at...
Mobile Charging With Heat Using A TEG Module
This circuit can come in handy when you are camping in a remote area where there is no electricity available to charge your mobile...
Ultrasonic Transmitter and Receiver
Most ultrasonic transmitters and receivers are built around timer IC 555 or complementary metal-oxide semiconductor (CMOS) devices. These devices are preset-controlled variable oscillators. The...
Digital Speedometer
This digital speedometer displays the speed of the vehicle in kmph. An opaque disc is mounted on the spindle attached to the front wheel...
Hybrid Solar Charger
Efficiency of a solar charging system depends on the weather conditions. Usually the solar panel gets four to five hours of bright sunlight in...
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...