Automatic Hand-Wash Timer

According to the World Health Organization (WHO) guidelines, people need to wash their hands with soap and water at least for 20 seconds to get rid of any virus. Although you...

Mini Fridge With Peltier Modules

It was in the middle of 1821 when J.T. Seebeck discovered that if two dissimilar metals connected at two different points are held at different temperatures, a microvoltage develops. This phenomenon...

Cheapest Touchless Water Dispenser

A touchless water dispenser uses an IR sensor to detect whether or not a hand/glass is present near it. If detected, then a relay module is automatically triggered that is connected...

Make A Crystal-Locked FM Transmitter

The circuit presented here uses a crystal oscillator and frequency multiplier to generate a highly-stable carrier signal frequency of 96MHz. With 40mW of RF output, it can be used to transmit...

Importance of Sensors In the Internet of Things

Different types of applications require different types of sensors to collect data from the environment. This article takes a look at some common IoT sensors In an Internet of Things (IoT) ecosystem,...

Growing Electronic Components Directly On Semiconductors

Researchers indicate that growing electronic components directly onto a semiconductor eliminates the problem of electron scattering. Faster computers require more device density on chip. As a result, the devices have to be...

CC3D Open Pilot Qav250 Racing Drone

Due to very high speed in small packages, the racing drones are very expensive starting from 25k to 70K and it becomes the question of affordability for those who are new...
stereo audio amplifier

Simple 5W Stereo Amplifier For Noise-Free Music

This simple stereo audio amplifier is based on a 12-pin TA8207K IC, which is inexpensive and easily available. In addition, it requires only a few resistors and electrolytic and ceramic capacitors....
Author's Prototype for square wave generator

Configure Arduino Uno As Square Wave Generator

In this project, the Arduino Uno is configured as a square wave generator with user-selectable control of the frequency and duty cycle. The operating range of the system is up to...

Silicon Chip Density Nears Physical Limit

Researchers reported that the silicon chips are nearing their physical limit, and the next big growth in the semiconductor industry is overdue. Moore’s law is one of the most famous technological predictions...
 
 
 

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