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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.

RFID-Based Smart Metro Ticketing System Using Arduino and IoT

Metro smart automated systems always look cool to us. You can scan and rescan to travel just using a MetroCard. No need for special...

Install Multiple ESP32 Board Versions – Full Tutorial

In this tutorial, we will learn how to install multiple versions of the ESP32 board package in the Arduino IDE. Once set up, you’ll...

DC-DC Buck Converter Design: 1.2V–3.3V High-Efficiency Circuit

A buck converter is a DC-DC power converter that efficiently steps down a voltage. It uses an inductor, resistors, and a capacitor to regulate...

Electronic Toggle Ratchet Relay Circuit

An electronic toggle ratchet relay is a specialised relay that, unlike standard relays, retains its state (on or off) even after the control signal...

Advanced Satellite for Telemetry and Remote Access

Advanced Satellite for Telemetry and Remote Access (ASTRA) is a CubeSat model designed to offer hands-on experience in satellite technology. It serves as a...

DIY LED Strip Controller with Motion Sensor

Decorative lighting has become quite popular, with options such as LED surface panels, strip lights, COB lights, spotlights, and profile lights that are widely...

Power Saver Air Conditioner Circuit

This air-conditioner (AC) power saver circuit can control the operation of two separate AC units, reducing energy consumption during preset periods and cutting overall...

Mini FM Radio Earbud: DIY RDA5807M Receiver Circuit Project

In the June issue, the construction of a Miniature Watch-Style FM Radio delivering stereo FM output was described. Building on that concept, the next...

AI-Powered Smoking Detection System Using MaixCam and YOLOv5

Over the past few years, smoking prevalence among adults in India fell from 14.0% (2009-2010) to 10.7% (2016-2017), thanks to public smoking bans, advertising...

Real-time Web-based Home Automation

In today's era of the Internet of Things (IoT), smart home automation has evolved from being a luxury to an accessible and essential part...

RFID Attendance IoT System

In this project, we will create an IoT-based RFID attendance system using the IndusBoard Coin with the ESP32-S2 chip. The system will read RFID...

Real‑Time Crop Monitoring and Remote Irrigation via ThingSpeak

Modern agriculture requires efficient resource management and real-time monitoring to ensure optimal crop growth. However, traditional methods often rely on labour-intensive manual checks, which...

Wearable Watch-Style FM Radio with Touchscreen

Radio has remained one of the most enduring and essential communication devices, retaining its relevance to this day. Its evolution—from large, bulky units to...

Gesture-Based Home Automation

Gesture-based home automation allows users to control household devices through simple hand movements, removing the need for switches or remotes. It improves convenience, accessibility,...

Automatic Humidifier For The Textile Industry Using Arduino

Precise humidity control is vital across various environments to preserve material quality and ensure optimal performance. In the textile industry, maintaining accurate humidity levels...

Arduino based IR Reflectance Alarm Using Homemade Sensor

Photoelectric sensors detect objects and surface changes using variations in optical properties. Each sensor includes a light emitter and a receiver, with most relying...

Timer Controlled Doorbell – Prevent Multiple Rings

Repeated or prolonged pressing of a doorbell can be disruptive, particularly in homes or offices. Visitors often press the bell multiple times in quick...

Set Up a Private AI Assistant at Home Using Raspberry Pi and Open Source LLMs

Discover how you can quickly set up a personal AI assistant on a home network using a Raspberry Pi. The past few years have seen...
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