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); ...