#define GAS_SENSOR 34
#define LED 2 // LED on GPIO2
void setup() {
Serial.begin(115200);
 pinMode(LED, OUTPUT);
}
void loop() {
 int gasValue = analogRead(GAS_SENSOR); // Read gas sensor value
Serial.print("Gas Value: ");
Serial.println(gasValue);
 if (gasValue > 2000) {
 digitalWrite(LED, HIGH); // Turn ON LED (Gas detected)
 } else {
 digitalWrite(LED, LOW); // Turn OFF LED (Safe)
 }
 delay(500); // Small delay
}