The Air Quality Monitoring System tracks various air quality metrics such as PM1.0, PM2.5, PM10, and gas concentrations (CO2, VOCs) using a combination of sensors. Data is transmitted via Wi-Fi using ...

download blynk app from playstore upload code on arduino and make connections download pc suite from https://github.com/blynkkk/blynk-library/releases/tag/v0.5.1 ...

The project illustrates how an Arduino board was interfaced with MQ-3 Alcohol Gas Sensor to create the Breathalyzer. One ADC input of Arduino is required to obtain the simple connection of the sensor.