Renan Alves / DHT

DHT library modify for DHT11 - DHT22 - AM2302

Dependents:   Navitec-Firmware

Fork of DHT by Components

Diff: DHT.cpp

Revision:
3:24682a533803
Parent:
2:df22ddf10d75
Child:
4:0242d8d27c1e
diff -r df22ddf10d75 -r 24682a533803 DHT.cpp
--- a/DHT.cpp	Fri Aug 15 20:55:43 2014 +0000
+++ b/DHT.cpp	Wed Mar 02 18:59:28 2016 +0000
@@ -51,6 +51,7 @@
     int cnt = 0;
     while (level == io) {
         if (cnt > max_time) {
+
             return ERROR_NO_PATIENCE;
         }
         cnt++;
@@ -78,10 +79,11 @@
     DHT_io.output();
     DHT_io = 0;
     // only 500uS for DHT22 but 18ms for DHT11
-    (_DHTtype == 11) ? wait_ms(18) : wait(1);
+    (_DHTtype == 11) ? wait_ms(18) : wait_us(500);
     DHT_io = 1;
     wait_us(30);
     DHT_io.input();
+    
     // wait till the sensor grabs the bus
     if (ERROR_NONE != stall(DHT_io, 1, 40)) {
         return ERROR_NOT_PRESENT;