Try to figure out how to interface with the DHT22, but it's not working right yet.

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "eeprom/lib/AT24Cx"]
 	path = eeprom/lib/AT24Cx
 	url = https://github.com/cyberp/AT24Cx.git
+[submodule "dht22/lib/SimpleDHT"]
+	path = dht22/lib/SimpleDHT
+	url = https://github.com/winlinvip/SimpleDHT

dht22/dht22.ino

@@ -0,0 +1,45 @@
+#include "lib/SimpleDHT/SimpleDHT.h"
+#include "lib/SimpleDHT/SimpleDHT.cpp"
+
+const int dhtA_pin = 5;
+
+SimpleDHT22 dhtA;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("DHT22 Demo");
+  Serial.println("==========");
+  
+  Serial.print("Configuring pins - ");
+  pinMode(dhtA_pin, INPUT_PULLUP);
+  Serial.println("done");
+  
+  Serial.print("Waiting to warm DHT22 up - ");
+  delay(2000); // Give the DHT22 time to warm up
+  Serial.println("done"); 
+}
+
+void loop() {
+  float temp, humidity;
+
+  int read_error = dhtA.read2(dhtA_pin, &temp, &humidity, NULL);
+  if(read_error != SimpleDHTErrSuccess) {
+    Serial.print("Error: Failed reading from the DHT22. Code: ");
+    Serial.println(read_error);
+    delay(2000); // We can only read every 2 seconds or so
+    return;
+  }
+  
+  Serial.print("Error code: ");
+  Serial.println(read_error);
+  Serial.print("Temperature: ");
+  Serial.print(temp);
+  Serial.println(" deg celsius");
+  Serial.print("Humidity: ");
+  Serial.print(humidity);
+  Serial.println("%");
+  Serial.println("*****");
+  
+  delay(2000); // We can only read every 2 seconds
+}
+

dht22/lib/SimpleDHT

@@ -0,0 +1 @@
+Subproject commit 80ac2b47c9caca07edf75f38289cfd64023872c9