From a1c052308a045dd5a6e8dfb71e826bcaccff3003 Mon Sep 17 00:00:00 2001
From: Holger Wirtz <wirtz@parasitstudio.de>
Date: Wed, 11 Nov 2020 10:36:34 +0100
Subject: [PATCH] Some small fixes.

---
 WLAN_Thermometer.ino | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/WLAN_Thermometer.ino b/WLAN_Thermometer.ino
index 265d9c5..b8fe29c 100644
--- a/WLAN_Thermometer.ino
+++ b/WLAN_Thermometer.ino
@@ -1,6 +1,6 @@
 // Use from 0 to 4. Higher number, more debugging messages and memory usage.
 //#define _WIFIMGR_LOGLEVEL_  4
-#define DEBUG               1
+//#define DEBUG               1
 
 #include <WiFi.h>
 #include <WiFiManager.h>
@@ -81,7 +81,7 @@ void setup()
   {
     ap_data_reset();
   }
-  
+
   WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
 
   WiFiManager wm;
@@ -122,7 +122,7 @@ void setup()
       DEBUG_MSG("mDNS started.\n");
     }
 
-    lcd.setCursor(0,2);
+    lcd.setCursor(0, 2);
     lcd.print(F("Mode WiFi client"));
     lcd.setCursor(0, 3);
     lcd.print(WiFi.localIP());
@@ -485,7 +485,10 @@ void get_sensor_data(void)
 {
   temp[ACT] = dht.readTemperature();
   hum[ACT] = dht.readHumidity();
-  heat[ACT] = dht.computeHeatIndex(temp[ACT], hum[ACT], false);
+  if (!isnan(temp[ACT]) && !isnan(hum[ACT]))
+    heat[ACT] = dht.computeHeatIndex(temp[ACT], hum[ACT], false);
+  else
+    heat[ACT] = NAN;
 
   if (minmax_enabled == false && millis() > FIRST_MIN_MAX)
   {
@@ -517,7 +520,7 @@ void get_sensor_data(void)
     {
       if (temp[ACT] < temp[MIN])
         temp[MIN] = temp[ACT];
-      if (temp[ACT] > temp[MAX])
+      else if (temp[ACT] > temp[MAX])
         temp[MAX] = temp[ACT];
     }
 
@@ -525,7 +528,7 @@ void get_sensor_data(void)
     {
       if (hum[ACT] < hum[MIN])
         hum[MIN] = hum[ACT];
-      if (hum[ACT] > hum[MAX])
+      else if (hum[ACT] > hum[MAX])
         hum[MAX] = hum[ACT];
     }
 
@@ -533,7 +536,7 @@ void get_sensor_data(void)
     {
       if (heat[ACT] < heat[MIN])
         heat[MIN] = heat[ACT];
-      if (heat[ACT] > heat[MAX])
+      else if (heat[ACT] > heat[MAX])
         heat[MAX] = heat[ACT];
     }
   }