Eric Gowland / DHT

Patch of original with some casts to get around troubles with log function overrides introduced by recent core updates.

Fork of DHT by Wim De Roeve

Diff: DHT.cpp

Revision:
1:1c18780cf691
Parent:
0:9b5b3200688f
--- a/DHT.cpp	Mon Jul 09 19:47:43 2012 +0000
+++ b/DHT.cpp	Wed Nov 26 16:48:17 2014 +0000
@@ -188,7 +188,7 @@
     SUM += 8.1328e-3 * (pow(10,(-3.49149*(A0-1)))-1) ;
     SUM += log10(1013.246);
     float VP = pow(10, SUM-3) * humidity;
-    float T = log(VP/0.61078);   // temp var
+    float T = log((float)(VP/0.61078));   // temp var
     return (241.88 * T) / (17.558-T);
 }
 
@@ -199,7 +199,7 @@
 {
         float a = 17.271;
         float b = 237.7;
-        float temp = (a * celsius) / (b + celsius) + log(humidity/100);
+        float temp = (a * celsius) / (b + celsius) + log((float)(humidity/100));
         float Td = (b * temp) / (a - temp);
         return Td;
 }