Arduino trying to get DHT senosors to work

arduino/HalMultiSensor/SensorDHT.h

@@ -0,0 +1,33 @@
+#ifndef SensorDHT_h
+#define SensorDHT_h
+
+#include <Arduino.h>
+#include "HalInterfaces.h"
+
+
+// Define types of sensors.
+#define DHT11 11
+#define DHT22 22
+#define DHT21 21
+
+
+class SensorDHT : public SensorTemperature
+{
+public:
+    SensorDHT(uint8_t  type, uint8_t pin) : _type(type), _pin(pin) {};
+
+    virtual void setup();
+    virtual void read(TemperatureData& data);
+
+private:
+    uint8_t _type, _pin;
+    uint32_t _maxcycles;
+    #ifdef __AVR
+        // Use direct GPIO access on an 8-bit AVR so keep track of the port and bitmask
+        // for the digital pin connected to the DHT.  Other platforms will use digitalRead.
+        uint8_t _bit, _port;
+    #endif
+
+    uint32_t expectPulse(bool level);
+};
+#endif