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Engineering Projects For You
Free electronics projects, circuit diagrams and software codes available for students and hobbyists. Complete instructions on DIY electronic devices also available. These projects have been tested by EFY and are available with source codes. These are helpful with understanding concepts of electronics including basic components. The projects are designed to be helpful for engineering students and professionals building their own designs and circuits. The projects are also compiled from time to time to provide a single destination for project junkies. Let us know how you feel about the content and any thing you would like us to cover in the future. We hope you enjoy the content on this page!
Reference Design For USB Power Delivery Battery Charger
The USB power delivery (PD) battery charger design incorporates a SEPIC power supply that meets the 20V/5A 100W USB PD specification.
A Universal Serial Bus...
Reference Design For A Dual USB Port Charger
The Dual USB Port Charger can provide a 2 A, 5 V output from various DC power sources.
The design has a wide input voltage...
Simple Water Temperature Controller and Indicator Using Arduino
If you wish to monitor and control the temperature of the water, or any other liquid for that matter, this water temperature controller can...
Multilingual Voice Chat with ChatGPT
Earlier, we used the power of chatGPT and converted it into voiceGPT, making it the most advanced voice assistant that can talk. And we...
Create Your Own Real-time DIY Millisecond Clock Using ESP32
Welcome to our DIY project guide for creating an accurate time display using ESP32 RTC. In this tutorial, we will show you how to...
Arduino-based Automatic Liquid Dispenser
This automatic liquid dispenser is based on an RFID reader and Arduino. Whenever you want to fill a water bottle or can, or petrol...
Reference Design For 15 Watt Wireless Charging Receiver
The compact 15 Watt wireless charging receiver design adheres to the Wireless Power Consortium (WPC) specifications and offers space-efficient integration.
Wireless charging enables convenient and...
Kitchen Security Alarm Using MQ2 Sensor
The most common cause of fire in a kitchen is gas leakage. This project will help you make an LPG leakage cum smoke detector...
Reference Design Of A Wireless Battery Charger
The reference design of a wireless charger is specifically proposed for wearable devices such as smartwatches, healthcare devices, Internet of Things (IoT) sensors, etc.
A...
Improved Solar Pooja Lamp Also Powers Two Wall Clocks
Introduction
In July 2021 issue of EFY, article “Solar Pooja Lamp That Runs Nonstop” was published. It uses supercapacitors to power LEDs in the night....
Reference Designs Of IoT based smart plugs
Title of Reference Design
Reference Design of a Smart Plug Featuring Solid-State Relay
Reference Design of a Smart Plug With Grid Frequency Monitoring
Reference Design...
Simple Low Cost Hearing Aid
The hearing ability of any person can decrease with age; so he/she will face too many problems. Hearing aid is a solution that can...
Does Your Smart Watch Emit UV Rays?
Introduction
UV rays are reputed to have versatile characteristics in various capacities. With the ill effectsof the mobile screen, and due to the increasing popularity...
Reference Design For Wireless Charging Transmitter
The wireless charger solution utilizes a low-cost microcontroller and enables charging through resonant inductive coupling facilitating efficient power transfer between transmitter and receiver.
Wireless charging,...
Reference Design For 5 Watt Wireless Charger
The Qi Wireless 5W Charging Transmitter design offers a 70% efficiency rating and is compatible with any phone charger capable of delivering a minimum...
Lightning Protection Device using Arduino
We designed a DIY Lightning Protection device using Arduino Nano, Relay, and an AS3935 sensor that can help you protect electronic devices against thunder-lightning.
Due...
Reference Design Of A Wireless Charger For Wearable Applications
A compact wireless charger design that follows Wireless Power Consortium (WPC) standard for establishing wireless communication and holds Qi certification.
Wireless chargers provide the convenience...
Interesting Reference Designs For Power Supplies
Title of Reference Design
Reference Design for a SEPIC Power Supply
Image
Key Attractions
Reference design for a SEPIC converter featuring a universal PWM converter....