Mq135 Gas Sensor - Library For Proteus Download -upd-

// Approximate conversion (non-linear, for simulation only) float ppm = map(sensorValue, 0, 800, 100, 600);

Serial.print("Gas PPM: "); Serial.println(ppm); delay(1000);

void loop() int sensorValue = analogRead(MQ135_PIN); float voltage = sensorValue * (5.0 / 1023.0);