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.
Simple Parking Counter
This simple circuit can be used to count the number of cars entering a parking lot.
The circuit is built around comparator LM311 (IC1), timer...
Simple Water Temperature Indicator
When bathing a baby, it’s important that the water is neither too cold nor too hot. You test the water by dipping your fingers...
Driveway Alarm
You can install this system in the driveway itself to detect intrusion by a vehicle, person or large animal. It sounds an alarm when...
Versatile DC-DC Converter
Here is a versatile power coupler that connects a device to 5V-19V DC generated from AC mains by a power adaptor. Power adaptors come...
Intercom Using LM386
Keep in touch with your family members from one room to another and also from outside areas such as the garage, using this intercom...
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...
SERVO MOTOR TESTER
When using a servo motor in a project, if the servo motor does not respond as per the input, how to make sure that...
Home Appliances Control Using Telephone
Using this circuit, you can control up to seven electrical appliances through a telephone. The circuit can switch on/off the appliances in two modes....
1Hz Precision Clock Timer
This timer makes an LED flash once every second along with a beep. The timing circuit uses a quartz crystal available in digital watches...
Pulse Counter Using AT89C4051
Pulse counters are widely used in our day-to-day life. Almost all museums and theaters have a visitor counter installed at entry exit to measure...
Designing Low Power Products Using MSP430 Microcontroller
The use of battery-operated electronics gadgets is increasing fast in our daily lives. Products are expected to be versatile, while consuming minimal power. Reduced...
Microcontroller-Based Ring Tone Player
Mobile phone ring tones sound like real audio recordings. It’s not because of the way the melodies are composed, but the protocol behind playing...
Put Coin And Draw Power
Built on the lines of payphones, here is an automatic coin collection device for payloads like lamps and air-conditioners to be used on a...
Cellphone-Based Device Control With Voice Acknowledgement
Here is a circuit that lets you operate your home appliances like lights and water pump from your office or any other remote place....
PIC16F877A-Based Temperature Monitoring System
Temperature monitoring and control is important in industry environments. Sensors are widely used for measurement of temperature. Usually, a temperature sensor converts the temperature...
Eight Channel Data Acquisition And Logging System
In environments like factories, power plants and transformers in electricity substations, controlling temperature to a safe value is important. Supervisory and control systems are...
Microcontroller-Based Moving Message Display
LED-based moving-message displays are becoming popular for transmitting information to large groups of people quickly. These can be used indoors or outdoors. We can...
Secure Digital Access System using iButton
Access control forms a vital link in a security chain. Here we describe a secure digital access system using iButton that allows only authorised...