GitHub

[Arduino basics tutorials] use MQ135 air quality detecting module.md

> MQ135 is mainly used to detect the concentration of carbon dioxide, alcohol, benzene, NOx, ammonia and other gases in the air.
GitHub

Arduino_mq135_oled.ino

#define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels pinMode(RedLed, OUTPUT); // initialize digital pin RedLed as an output.
IEEE

Automatic Vehicle Emission Monitoring and Alert System Using Arduino and MQ135 Sensor

Abstract: Emission checking is essential to reducing air pollution in urban areas. Conventional systems, such as Pollution Under Control (PUC) registration in India, rely on manual inspections without ...