Ashish Choudhary

IoT Based Air Quality Index Monitoring System – Monitor PM2.5, PM10, and CO using ESP32

As winter sets in, the air hanging over us thickens with smoke and gaseous emissions from burning fields, industrial factories...

Programming ATtiny85 IC directly through USB using Digispark Bootloader

The ATtiny family is a series of one of the smallest microcontrollers in the AVR market. These microcontrollers are capable of...

Measuring CO2 Concentration in Air using Arduino and MQ-135 Sensor

The earth’s Atmospheric CO2 level is increasing day by day. The global average atmospheric carbon dioxide in 2019 was 409.8...

DIY ESP32 Based Audio Player

DIY Music players are fun to build, and we previously built a few music players using Arduino and a dedicated MP3 module. Now...

Interfacing Gravity Infrared CO2 Sensor with Arduino to Measure Carbon Dioxide in PPM

The increasing concentration of carbon dioxide in the air has become a serious problem now. According to the NOAA report, the...

ESP32-CAM Face Recognition Door Lock System

Security is at most concern for anyone nowadays, whether it's data security or security of their own home. With the advancement...

Air Quality Analyzer using Arduino and Nova PM Sensor SDS011 to Measure PM2.5 and PM10

Air pollution is a major issue in many cities and the air quality index is getting worse every day. According to the World...

Li-Fi based Text Communication between Two Arduino

Li-Fi (Light Fidelity) is an advanced technology that allows transferring data using optical communication such as visible...

Interfacing Sharp GP2Y1014AU0F Sensor with Arduino to build Air Quality Analyser

Air pollution is a major issue in many cities and the air quality index is getting worse every day. According to the World...

Gesture Controlled Contactless Elevator using APDS9960 Sensor

In this time of the Corona pandemic, elevators have become a high-risk place where everybody touches the same buttons. At many...