checkval

mongoose-os-apps · Jun 2, 2024 · e8aaab1 · e8aaab1
1 parent dccbd65
commit e8aaab1
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/src/DHT/shelly_dht_sensor.cpp b/src/DHT/shelly_dht_sensor.cpp
@@ -84,8 +84,18 @@ StatusOr<float> DHTSensor::GetHumidity() {
 
 void DHTSensor::UpdateTemperatureCB() {
   // std::nan
-  result_ = mgos_dht_get_temp(dht);
-  result_humidity_ = mgos_dht_get_humidity(dht);
+  float result = mgos_dht_get_temp(dht);
+  float result_humidity = mgos_dht_get_humidity(dht);
+
+  //check values for validity
+  if((result == 0) and (result_humidity == 0) or result == std::nan or result_humidity == std::nan) {
+    //error during readout do nothing for now
+   LOG(LL_INFO, "DHT: invalid value received");
+   return;
+  }
+  result_ = result;
+  result_humidity_ = result_humidity;
+
   if (notifier_) {
     notifier_();
   }