[HowTo] Temperatur und Feuchtigkeitssensor DHT11/DHT22 an SaS

cd /root
sudo apt-get update
sudo apt-get install build-essential python-dev python-openssl git [COLOR=#333333]wiringPi[/COLOR]
git clone https://github.com/adafruit/Adafruit_Python_DHT.git && cd Adafruit_Python_DHT
cd Adafruit_Python_DHT
sudo python setup.py install

cd examples
sudo ./AdafruitDHT.py 11 4

Temp=23.0*  Humidity=39.0%

mkdir /media/usbstick/dht11

nano /media/usbstick/dht11/getdht11.sh

#!/bin/bash
/root/Adafruit_Python_DHT/examples/AdafruitDHT.py 11 4 > /media/usbstick/dht11/dht11_1.txt

<?php


    /*
        +---------------------------------------------------------------------+
        |                                                                     |
        |   SensorAndSwitch                                      PSG-Script   |
        |                                                                     |
        +---------------------------------------------------------------------+
    */


    include __DIR__."/../include/psg.php";
    $gerarray=getGerInfo(substr(basename(__FILE__,".php"),3));


    if ($gerarray["Counter"]>=4) {
        $ver="V#V 1.00#";
        
                $befehl='sudo /media/usbstick/dht11/getdht11.sh';
        $url=$helperurlpi."?befehl=".encodiere($befehl,33455);
        $Status=web($url,$post);
        
        $befehl="tac /media/usbstick/dht11/dht11_1.txt | cut -c6-9";
        $url=$helperurlpi2."?befehl=".encodiere($befehl,33455);
        $temp1=web($url,$post);
                
        $befehl="tac /media/usbstick/dht11/dht11_1.txt | cut -c22-25";
        $url=$helperurlpi2."?befehl=".encodiere($befehl,33455);
        $feucht1=web($url,$post);
        
        $echo='P#<div style="font-size:16px;text-align:right;width:240px;position:absolute;top:-5px;">Luftfeuchtig. : '.sprintf("%.1f",$feucht1).' °C<br />Temperatur  : '.sprintf("%.1f",$temp1).' °C</div>*HTML#'.$ver;
      
                                       }
    else {
        $echo=$ver."C##";
         }
    echo $echo;
    exit;
?>

#!/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)
xyz@s4:~