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ATmega328 Analogue I/O Port Expander Using I2C Bus

This project explains the interfacing of PCF8591 converter (slave) with ATmega328 microcontroller (master) using I2C bus to get direct multiple analogue inputs and outputs. ATmega328 microcontroller (MCU) on the Arduino Uno...
low cost drone

Low Cost Drone Powered by ESP32 CAM

A low cost drone equipped with a camera opens up many new possibilities with respect to their applications such as crop monitoring, video surveillance and recording, and many more. However, such...

You Can Travel In Drones And Eat Them Too

With the introduction of artificial intelligence and hybrid technologies, the future of drones is not just limited to taking great live aerial photos and videos, now these can also be used...

Quantum Dots Transforming The Medical Field

Quantum dots (QDs), popularly used as QLED displays in TVs, are now playing a crucial role in the development and transformation of the medical field. QDs are now being used in...
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...
CDNLive

Five Pieces of Advice I Wish I’d Known When I Started My Career

Congratulations to the members of class of 2020 who are newly embarking on a journey into the workforce! This marks an important phase in your lives as you transition from the...

Contactless UI Control For Lifts

Lifts/elevators in buildings, hotels and hospitals are used by many people. If it’s a structure with over more than 100 floors, then using stairs is not a convenient option, especially for...

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...

Contactless IR Thermometer For COVID-19 Detection

Due to the break out of COVID-19, we need to check our body temperature wherever we go -  from hospitals to airports - to detect any symptoms of the disease. Since...

Anti-Sleep Alarm for Truck Drivers

During the transportation of cargo and heavy materials over long distances (especially during night time) through trucks, the effects of inadequate sleep proves to be a major problem for these vehicle...