 #include <TimerOne.h>
 
 #define MQ7PIN A0
-#define MQ2PIN A2
+#define MQ2PIN A1
+#define MQ135PIN A2
 #define DHTPIN 8
 #define DHTTYPE DHT11
 

    }
}

void serialize(char* fmt) {
    sprintf(fmt, "mq7: %i, mq2: %i, hum: %i, tmp: %i, hid: %i;", mq7, mq2, (int)hum, (int)tmp, (int)(hid+0.5));
}

void callback() {
    mq7 = readMQ7();
    mq2 = readMQ2();
    hid = dht.computeHeatIndex(tmp, hum, false);

    serialize(fmt);


int mq7 = 0;
int mq2 = 0;
int mq135 = 0;

char fmt [64];

