#define MQ2_ANA A1
#define MQ2_DIG 2
#define MQ1_ANA A2
#define MQ1_DIG 4
#define LEDMERAH 8
#define LEDKUNING 13


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(MQ2_ANA, INPUT);
  pinMode(MQ2_DIG, INPUT);
  pinMode(MQ1_ANA, INPUT);
  pinMode(MQ1_DIG, INPUT);
  pinMode(LEDMERAH, OUTPUT);
  pinMode(LEDKUNING, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int MQ1_ANA = analogRead(MQ1_ANA);
  int MQ2_ANA = analogRead(MQ2_ANA);

  Serial.print("Analog 1: ");
  Serial.println(analogRead(MQ2_ANA));
  Serial.print("Digital 1: ");
  Serial.println(digitalRead(MQ2_DIG));
  Serial.print("Analog 2: ");
  Serial.println(analogRead(MQ1_ANA));
  Serial.print("Digital 2: ");
  Serial.println(digitalRead(MQ1_DIG));

  if (analogRead(MQ1_ANA) > 200) {
    digitalWrite(LEDMERAH, HIGH);
  } else {
    digitalWrite(LEDMERAH, LOW);
  }

   if (analogRead(MQ2_ANA) > 200) {
    digitalWrite(LEDKUNING, HIGH);
  } else {
    digitalWrite(LEDKUNING, LOW);
  }
 
}