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.
Multifunction Rechargeable Digital Clock
Presented here is a digital clock that also functions as a rechargeable light lantern and a mobile charger. The digital clock has all the...
HDL and FPGA: From Gates to Microprocessors
Digital designs can be described precisely and concisely using hardware description languages (HDLs) like Verilog and VHDL. Both languages are capable of digital circuit...
Automatic Light and Overcharging Control With Voltage-Level Indicator
This circuit can be used for automatic light control and 6V battery charging. It monitors the battery level and switches to charging and overcharging...
Bi-Directional Motor Driver Using ULN2803
Motor driver modules for motors allow you to control the working speed and direction of two motors simultaneously. Here we present an alternative ULN2803...
Optical Theremin Musical Instrument Using Arduino Uno Board
Theremin is an early electronic musical instrument controlled without physical contact by the thereminist (performer). It is named after the Russian inventor, Léon Theremin,...
Multimeter Test Leads from Scratch
If you are an electronics hobbyist and need to measure low currents and low voltages, you can buy any inexpensive multimeter. However, test leads...
Touch Switch
Described here a touch switch circuit system that operates only when you touch two conductor terminals simultaneously with your fingertip.
Curtain Opener
Open or close the curtains of your house at the press of a switch. All you need is this electronic curtain opener. Meant for...
Wireless Equipment Control Using MATLAB-Based GUI
In process instrumentation and control, operators in the plant equipment control room monitor on-field sensors and send real-time commands to control actuators and final...
Arduino-based Front Office Visitor Alarm
This Arduino based visitor alarm is useful for offices, clinics and shops. It alerts you to the entry of a visitor by producing a...
Wireless VU meter
VU meter is a standard device that indicates the signal level in audio equipment. Unlike other devices, this meter doesn't require a physical connection...
Super Simple Intercom
This intercom circuit based on IC LM380 audio amplifier requires very few external components. So the circuit is very easy to assemble.
Intercom circuit
Circuit diagram...
Interfacing Multiple LCDs With Arduino
Here we describe the interfacing of three 16x2 LCDs with common data lines to an Arduino Uno board. Four data lines of all the...
Water Pump Controller
Here is a simple water pump controller circuit for controlling the water level in an overhead tank. The main components of this pump controller...
Simple Sensitive Remote Control Tester
This handy remote control tester circuit for testing infrared-based remote control transmitters used for TVs and VCRs etc. The circuit is built around 7805 IC,...
Dew-Point Sensor
A dew sensor is used in sensitive electronic equipment like cameras and copiers etc, to protect them from moisture failure by fast detection of...
Bipolar Transistor Tester
This bipolar transistor tester can indicate the type of the transistor as well as identify its base, collector and emitter pins. The circuit is...
Strain Meter
This strain meter shows whether the strain is compressive (reducing the length) or tensile (increasing the length) when an object such as a strut...