mq2

41e0c45e · DESKTOP-95L9KLS\Sandun · 767469d7 · 41e0c45e
Commit 41e0c45e authored Apr 27, 2022 by $DESKTOP-95L9KLS\Sandun's avatar$ DESKTOP-95L9KLS\Sandun
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IT18203172/MQ-2_Gas_Sensor/MQ-2_Gas_Sensor.ino IT18203172/MQ-2_Gas_Sensor/MQ-2_Gas_Sensor.ino +26 -0

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--- a/IT18203172/MQ-2_Gas_Sensor/MQ-2_Gas_Sensor.ino
+++ b/IT18203172/MQ-2_Gas_Sensor/MQ-2_Gas_Sensor.ino
+int gas =A2;
+int value = 0;
+
+void setup() {
+ pinMode(gas,INPUT);
+pinMode(13,OUTPUT);
+Serial.begin(9600);
+}
+
+void loop() {
+
+  value = analogRead(gas);
+  Serial.println(value);
+  delay(100);
+
+  if(value> 220){ //cahnge with your val
+  digitalWrite(13,HIGH);
+  Serial.print("LPG gas was detected");Serial.println(value);
+  delay(10);
+  }
+  else{
+  digitalWrite(13,LOW);
+  delay(10);
+  }
+
+}