dweet fix again

app/controller/drivers/adafruit/examples/AdafruitDHT.py

@@ -0,0 +1,54 @@
+#!/usr/bin/python
+# Copyright (c) 2014 Adafruit Industries
+# Author: Tony DiCola
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+import sys
+
+import Adafruit_DHT
+
+
+# Parse command line parameters.
+sensor_args = { '11': Adafruit_DHT.DHT11,
+				'22': Adafruit_DHT.DHT22,
+				'2302': Adafruit_DHT.AM2302 }
+if len(sys.argv) == 3 and sys.argv[1] in sensor_args:
+	sensor = sensor_args[sys.argv[1]]
+	pin = sys.argv[2]
+else:
+	print 'usage: sudo ./Adafruit_DHT.py [11|22|2302] GPIOpin#'
+	print 'example: sudo ./Adafruit_DHT.py 2302 4 - Read from an AM2302 connected to GPIO #4'
+	sys.exit(1)
+
+# Try to grab a sensor reading.  Use the read_retry method which will retry up
+# to 15 times to get a sensor reading (waiting 2 seconds between each retry).
+humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
+
+# Un-comment the line below to convert the temperature to Fahrenheit.
+# temperature = temperature * 9/5.0 + 32
+
+# Note that sometimes you won't get a reading and
+# the results will be null (because Linux can't
+# guarantee the timing of calls to read the sensor).  
+# If this happens try again!
+if humidity is not None and temperature is not None:
+	print 'Temp={0:0.1f}*  Humidity={1:0.1f}%'.format(temperature, humidity)
+else:
+	print 'Failed to get reading. Try again!'
+	sys.exit(1)