     Serial.println(pm100);
   }
   */
-  sht31.readTemperature();
-  sht31.readHumidity();
+  t = sht31.readTemperature();
+  h = sht31.readHumidity();
   delay(100);
   if(!isnan(t) && !isnan(h)) {
     Serial.print("SHT31 :: temp=");

AM2321 am2321;

void setup() {
  Serial.begin(115200);
  Serial1.begin(57600);
  g3.begin(9600);
  a4.begin(9600);

    t = -1;
    h = -1;
  }
  t = dht.readTemperature();
  h = dht.readHumidity();
  if(!isnan(t) && !isnan(h)) {
    Serial.print("AM2302 :: temp=");
    Serial.print(t);
