fully tested working DHT11/21/22 with built in '2 second' timer

DHT.h

@@ -1,5 +1,32 @@
+
+#include <WProgram.h>
+
 /* DHT library 
 
 MIT license
 written by Adafruit Industries
 */
+
+// how many timing transitions we need to keep track of. 2 * number bits + extra
+#define MAXTIMINGS 85
+
+#define DHT11 11
+#define DHT22 22
+#define DHT21 21
+#define AM2301 21
+
+class DHT {
+ private:
+  uint8_t data[6];
+  uint8_t _pin, _type;
+  boolean read(void);
+  unsigned long _lastreadtime;
+  boolean firstreading;
+
+ public:
+  DHT(uint8_t pin, uint8_t type);
+  void begin(void);
+  float readTemperature(void);
+  float readHumidity(void);
+
+};