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.
Object Counter For Conveyor
Loading cement sacks into trucks requires precise counting for traceability, yet manual methods are error-prone and often lead to shipment discrepancies. This system automates...
Batteryless Microcontroller Operation Using Supercapacitor
Imagine a world where microcontrollers (MCUs) and development boards operate without batteries. Energy-harvesting technology now makes this a practical reality. Several batteryless IoT sensors...
LED bar Display Showing Audio Signal Level
This is a simple audio-signal-based LED indicator built around the LM3914 display driver IC. Visual indication of audio signal levels is an essential feature...
30 Rupees CAN Bus Transceiver Design
Transreceiver plays a crucial role in CAN bus communication, transmitting data from the MCU to the CAN network. While most MCUs, such as the...
IoT-enabled CAN Bus Vehicle Monitoring System
This project demonstrates how to build an IoT-enabled CAN bus monitoring system using the Indusboard Coin. While the CAN bus is widely used in...
DIY CAN Bus Vehicle Sensor
Here we are designing a very small, tiny CAN network sensor that can be attached to any vehicle. It detects motion, accidents, and all...
Time Lapse Timed Photography On MaixCam Board
Everything changes with time. Some changes happen so rapidly — like 7 frames or more per second — that we perceive them as motion...
Musical Temperature Alarm
A musical temperature alarm is an electronic circuit that detects when ambient temperature exceeds a preset limit and triggers a melody instead of a...
Overcurrent Relay with IDMT for Motor Protection Using Arduino
This is a DIY Arduino-based overcurrent relay project that emulates Inverse Definite Minimum Time (IDMT) protection using an Arduino Nano and ACS712 current sensor....
Custom AI-enabled Home Automation using ESP RainMaker
This tutorial explains how to build an AI-enabled smart home automation using ESP RainMaker. The system supports lights, fans, relays, sensors, RGB LEDs, OTA...
Smart Air Quality Monitoring System using Arduino
Air pollution is a critical concern in modern living environments, particularly in enclosed spaces such as homes, offices, factories, and laboratories, where prolonged exposure...
Railway Track Gauge and Superelevation (Cant) Measurement System using Arduino
This project presents a portable Arduino-based digital instrument for railway track inspection that measures super elevation (cant), track gauge, and rail temperature. Built around...
Low-Cost 40A, 1200V Solid-State Relay with Voltage Controller
This project describes a high-power solid-state relay (SSR) and AC voltage controller built using a BTA41-1200BW TRIAC (40A, 1200V) and MOC3041 opto-triac. Unlike conventional...
Wearable Health Monitoring Tag With Telegram Bot
In this project, I built a wearable health monitoring tag that you can actually chat with on Telegram. Using a pulse oximeter sensor and...
AI-Based Hand Tracking for Robotic Arm Control
In this project, I show how to control a robotic arm servo using real-time hand tracking powered by AI image processing. We use MediaPipe...
Simple Overflow Stopper
Even though water covers two-thirds of the Earth’s surface, less than 1% of it is fresh and easily accessible for human use. Preventing unnecessary...
Multifunction Human Detection And Weather Monitoring IoT Radar System
A human detection system was designed earlier to utilise the microwave Doppler effect to detect human movement and trigger AC appliances such as light...
Hybrid AC–DC Smart Grid Using IoT and Cloud Monitoring
This system integrates traditional AC grids with DC systems, such as solar panels, batteries, and EV chargers, and coordinates them through software, automation, and...