added simpletest example

Author: sommersoft

examples/dht_simpletest.py

@@ -0,0 +1,18 @@
+import time
+import adafruit_dht
+from board import D2
+
+#initial the dht device
+dhtDevice = adafruit_dht.DHT22(D2)
+
+while True:
+    try:
+        # show the values to the serial port
+        temperature = dhtDevice.temperature*9/5+32
+        humidity = dhtDevice.humidity
+        print("Temp: {:.1f} F Humidity: {}% ".format(temperature, humidity))
+
+    except RuntimeError as error:
+        print(error.args)
+
+    time.sleep(2.0)