Change initial HIGH delay, fix comments in examples

DHT.cpp

@@ -171,7 +171,7 @@ bool DHT::read(bool force) {
     pinMode(_pin, INPUT_PULLUP);
 
     // Now start reading the data line to get the value from the DHT sensor.
-    delayMicroseconds(60);  // Delay a bit to let sensor pull data line low.
+    delayMicroseconds(40);  // Delay a bit to let sensor pull data line low.
 
     // Turn off interrupts temporarily because the next sections
     // are timing critical and we don't want any interruptions.

examples/DHT_Unified_Sensor/DHT_Unified_Sensor.ino

@@ -5,13 +5,15 @@
 
 // REQUIRES the following Arduino libraries:
 // - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library
-// - Adafruit Unified Sensor Library: https://github.com/adafruit/Adafruit_Sensor
+// - Adafruit Unified Sensor Lib: https://github.com/adafruit/Adafruit_Sensor
 
 #include <Adafruit_Sensor.h>
 #include <DHT.h>
 #include <DHT_U.h>
 
-#define DHTPIN     2         // Pin connected to the DHT sensor.
+#define DHTPIN 2     // Digital pin connected to the DHT sensor 
+// Feather HUZZAH ESP8266 note: use pins 3, 4, 5, 12, 13 or 14 --
+// Pin 15 can work but DHT must be disconnected during program upload.
 
 // Uncomment the type of sensor in use:
 //#define DHTTYPE    DHT11     // DHT 11

examples/DHTtester/DHTtester.ino

@@ -3,11 +3,13 @@
 
 // REQUIRES the following Arduino libraries:
 // - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library
-// - Adafruit Unified Sensor Library: https://github.com/adafruit/Adafruit_Senso
+// - Adafruit Unified Sensor Lib: https://github.com/adafruit/Adafruit_Sensor
 
 #include "DHT.h"
 
-#define DHTPIN 2     // what digital pin we're connected to
+#define DHTPIN 2     // Digital pin connected to the DHT sensor
+// Feather HUZZAH ESP8266 note: use pins 3, 4, 5, 12, 13 or 14 --
+// Pin 15 can work but DHT must be disconnected during program upload.
 
 // Uncomment whatever type you're using!
 //#define DHTTYPE DHT11   // DHT 11

library.properties

@@ -1,5 +1,5 @@
 name=DHT sensor library
-version=1.3.1
+version=1.3.2
 author=Adafruit
 maintainer=Adafruit <[email protected]>
 sentence=Arduino library for DHT11, DHT22, etc Temp & Humidity Sensors