From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Thu, 9 May 2019 07:44:48 +0000 (+0200)
Subject: filter nosiy measurement from dht22 with diffrence > 10 from average
X-Git-Url: http://git.rot13.org/?p=Arduino;a=commitdiff_plain;h=488180b8cb3ff52eebea03a5d5e4b5da70a06f39

filter nosiy measurement from dht22 with diffrence > 10 from average
---

diff --git a/rpi_promini/rpi_promini.ino b/rpi_promini/rpi_promini.ino
index 5e98806..d767dd0 100644
--- a/rpi_promini/rpi_promini.ino
+++ b/rpi_promini/rpi_promini.ino
@@ -114,11 +114,13 @@ unsigned long time = millis();
 void loop() {
   if ( millis() - time > 2000 ) {
     float t = dht.getTemperature();
-    if ( dht.getStatus() == 0 )
+    float delta_t = abs(t - temp_avg.getAverage());
+    if ( dht.getStatus() == 0 && delta_t < 10 )
       temp_avg.addValue( t );
     else dht22_errors++;
     float h = dht.getHumidity();
-    if ( dht.getStatus() == 0 )
+    float delta_h = abs(h - hum_avg.getAverage());
+    if ( dht.getStatus() == 0 && delta_h < 10 )
       hum_avg.addValue( h );
     else dht22_errors++;
     time = millis();