envisens/envisens_esp_fw/envisens_esp_fw.ino

@@ -20,11 +20,11 @@
 #define TOPIC_ABHU TOPIC_BASE "abs_humidity"
 #define TOPIC_AIRQ TOPIC_BASE "air_gas"
 
-#define DIFF_TEMP 0.5 // sensor has only 0.5°C accuracy, triggering on less is ludicrous
+#define DIFF_TEMP 0.3 // sensor has only 0.5°C accuracy, triggering on less is ludicrous
-#define DIFF_HMID 2.5 // humidity doesn't change that much anyways
+#define DIFF_HMID 1.5 // humidity doesn't change that much anyways
-#define DIFF_HEAT 0.5 // this one's actually quite active
+#define DIFF_HEAT 0.3 // this one's actually quite active
-#define DIFF_ABHU 0.5 // small changes mean quite something
+#define DIFF_ABHU 0.2 // small changes mean quite something
-#define DIFF_AIRQ 5 // this one changes in integers
+#define DIFF_AIRQ 3 // this one changes in integers
 
 float hmid = 0; // humidity
 float hmid_r = 0; // humidity
@@ -105,7 +105,7 @@ bool checkVariation(float newValue, float prevValue, float maxDiff) {
 }
 
 bool checkPlausibility(float newValue, float prevValue, float maxDiff) {
-  return (newValue < prevValue + (maxDiff * 10) || newValue > prevValue - (maxDiff * 10) || prevValue == 0.0);
+  return (newValue < prevValue + (maxDiff * 10) || newValue > prevValue - (maxDiff * 10) || lastVal == 0.0);
 }
 
 long lastMsg = 0;
@@ -119,6 +119,9 @@ bool publish (String desc, char *topic, float val, float &lastVal, float diff, b
   if (checkVariation(val, lastVal, diff) or force) {
     Serial.println("Sufficient variation on " + desc + ": " + String(val).c_str());
     if (checkPlausibility(val, lastVal, diff) or force) {
+      if (lastVal != 0.0) {
+        val = (lastVal*2 + val) / 3; // slight averaging
+      }
       Serial.println("Value " + desc + " averaged and published : " + String(val).c_str());
       client.publish(topic, String(val).c_str(), true);
       ret = true;
@@ -183,7 +186,7 @@ void loop() {
       Serial.println("ERR: Sensor could not be identified");
     }
 
-    if (!isnan(hmid) && !isnan(temp) && hmid != 0.0 && temp != 0.0){
+    if (!isnan(hmid) && !isnan(temp)){
       abhu = (6.112 * ( pow(2.71828, ((17.67 * temp) / (temp + 243.5))) * hmid * 2.1674)) / (273.15 + temp);
     }