envisens/envisens_esp_fw/envisens_esp_fw.ino

@@ -18,18 +18,14 @@
 #define TOPIC_HMID TOPIC_BASE "humidity"
 #define TOPIC_HEAT TOPIC_BASE "heat_index"
 #define TOPIC_AIRQ TOPIC_BASE "air_gas"
-#define TOPIC_ABHU TOPIC_BASE "abs_humidity"
 
 #define DIFF_TEMP 0.3 // sensor has only 0.5°C accuracy, triggering on less is ludicrous
-#define DIFF_HMID 1.5 // humidity doesn't change that much anyways
+#define DIFF_HMID 2.5 // humidity doesn't change that much anyways
 #define DIFF_HEAT 0.2 // this one's actually quite active
 #define DIFF_AIRQ 3 // this one hardly changes 
-#define DIFF_ABHU 0.1 // small changes mean quite something
 
 float hmid = 0; // humidity
 float hmid_r = 0; // humidity
-float abhu = 0; // absolute humidity
-float abhu_r = 0; // absolute humidity
 float temp = 0; // temperature
 float temp_r = 0; // temperature
 float heat = 0; // heat index
@@ -126,6 +122,8 @@ bool publish (String desc, char *topic, float val, float &lastVal, float diff, b
       Serial.print("** ERROR: Value out of bounds, not published. Last value :");
       Serial.println(String(lastVal).c_str());
     }
+  } else {
+    Serial.println("Not enough variation for a publication");
   }
   return retval;
 }
@@ -183,10 +181,6 @@ void loop() {
       Serial.println("ERR: Sensor could not be identified");
     }
 
-    if (!isnan(hmid) && !isnan(temp)){
-      abhu = (6.112 * ( pow(2.71828, ((17.67 * temp) / (temp + 243.5))) * hmid * 2.1674)) / (273.15 + temp);
-    }
-
     published = false;
     if (lastSent > FORCE_PERIOD) {
       Serial.println(F("Forcing a publish of all values"));
@@ -198,7 +192,6 @@ void loop() {
     published += publish("humidity", TOPIC_HMID, hmid, hmid_r, DIFF_HMID, forcePublish);
     published += publish("heat index", TOPIC_HEAT, heat, heat_r, DIFF_HEAT, forcePublish);
     published += publish("air quality", TOPIC_AIRQ, airq, airq_r, DIFF_AIRQ, forcePublish);
-    published += publish("absolute humidity", TOPIC_ABHU, abhu, abhu_r, DIFF_ABHU, forcePublish);
     
     if (published == false) {
       lastSent = lastSent + 1;