MQ-135 Sensor Module (ตรวจวัดแก๊สที่เป็นอัตรายต่อมนุษย์)

The MQ-135 sensor module for Arduino is used to detect gases that are hazardous to human health. It can be used for various applications such as air purification systems, controlling atmospheric conditions, and monitoring gas levels in the air.

const int analogInPin = A0;

int sensorValue = 0;

void setup() {

Serial.begin(9600);

}

void loop() {

sensorValue = analogRead(analogInPin);

Serial.print("sensor = ");

Serial.println(sensorValue);

delay(2);