Air Quality Check With Arduino Uno

Air Quality Check With Arduino Uno with the Help of MQ135 Air Quality Hazardous Gas Sensor Detector Module.

Step 1: Pin Configuration

Red=5V

Green= Data (A0)

Black= Ground

Step 2: Connection of Wire

1=Red (5V)

2=Black(Ground)

4=Green(Data)(A0)

Step 3: Program

Step 4: Serial Monitor

Step 5: MQ-135

MQ135 Air Quality Hazardous Gas Sensor Detector Module.