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GAS Sensor Code

 const int gasSensorPin = A0;  // Connect gas sensor output pin to A0 const int buzzerPin = 8;      // Connect buzzer to digital pin 8 const int threshold = 300;    // Adjust this threshold based on your sensor void setup() {   pinMode(gasSensorPin, INPUT);   pinMode(buzzerPin, OUTPUT);   Serial.begin(9600); } void loop() {   int gasLevel = analogRead(gasSensorPin);   Serial.println(gasLevel);   if (gasLevel > threshold) {     for (int i = 0; i < 6; i++) {  // Beep 6 times       digitalWrite(buzzerPin, HIGH);       delay(100);                 // Buzzer on for 100ms       digitalWrite(buzzerPin, LOW);       delay(400);                 // Buzzer off for 400ms     }     delay(3000);                ...