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555 Timer based 5-Colour LED Flasher Circuit

This 5-color LED flasher circuit can be built using the popular 555 timer and 4017 decade counter ICs. It does not require any expensive...

Maixduino Powered Doorman – Modified For Better

Maixduino Powerd automatic doorman For entering & exiting  control room there are two glass swing doors - one outer door and one inner door....

Amazing Speech-Controlled Sudoku Solving Robot

For most people solving sudoku puzzles is not a particularly simple task. A novice may take many hours to finish a straightforward sudoku puzzle....

Coal Mining Safety Robot Using Arduino

The main objective of this project is to design a coal mining safety robot to detect toxic gases emitted in coal mines. It is...

Smart Google Glasses With Transparent OLED Display

Google Glasses launched a few years ago look like normal eyeglasses but it is made of a special glass and has a user interface...

Remote Controlled Corona Protection Bell

The World Health Organization (WHO) recommends that everyone should rub their hands with soap for at least 20 seconds before washing with water to...

ESP32 As Camera Webserver

This small-size programmable camera can start taking pictures when motion is detected and transmit real-time videos. It can be hidden easily for espionage work...

Building Driver Drowsiness Detection System

Today we are going to make a smart Driver Drowsiness Detection System using Raspberry Pi that will keep track of a driver's eye movement....

A Small Portable IoT Health Sticker

Monitoring health of a person continuously 24 hours a day and every day of the week is not easy for even doctors and researchers,...

DIY: Smart Google Glasses With Built-In Phone Feature

The previously designed Smart Google Glass is configured with a transparent OLED display that provides various information in front of the eye as an overlay....

MagSafe Enabled Wireless Power Bank

MagSafe, a magnetic technology embedded into the internal engineering of iPhone 12 model, was originally created as a safety feature for MacBook charging cords....

Remote Controlled Corona Protection Device Specially For Children

We know that World health organization (WHO) recommends that everyone should wash their hands with soap and water at least 20 seconds to prevent...

The Standalone Logic Analyzer That Needs No Laptop

The most essential tool for engineers is a logic analyzer, which they operate using a laptop or PC to show the results. A stand-alone...

Top Reference Designs for Li-Ion Chargers

Designing a Li-Ion Charger? Here’s a collection of valuable industry-grade reference designs shared by leading brands. Reference Design Of USB BC 1.2 Compliant Charger The Reference...

Power Supply With Digital Volt-Amp Panel Meter

This is a variable power supply with digital volt-amp panel meter. Its advantage is that you do not need a separate voltmeter, ammeter, or...

Reference Design For A 10A Fast Battery Charger 

The fast charging reference design from Renesas is capable of delivering a high charging current of 10A. The reference design is up to 98%...

2S Cell Charger With An Integrated Boost Converter

The EV2639A-R-00B from Monolithic Power Systems is the reference design for a 2S charger with an integrated boost converter. The reference design features a...

Multibay charger for 2S configuration

Do you want to charge a 2S battery pack, or want a charger that can be customised to charge up to 32 cells? Then...
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