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DS18B20 bugfix
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@@ -1,46 +1,26 @@
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#!/usr/bin/python
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# Copyright (c) 2014 Adafruit Industries
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# Author: Tony DiCola
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# Modified by Vitor Henrique
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import sys
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import Adafruit_DHT
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# Parse command line parameters.
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sensor_args = { '11': Adafruit_DHT.DHT11,
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'22': Adafruit_DHT.DHT22,
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'2302': Adafruit_DHT.AM2302 }
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sensor_args = {'11': Adafruit_DHT.DHT11,
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'22': Adafruit_DHT.DHT22,
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'2302': Adafruit_DHT.AM2302}
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if len(sys.argv) == 3 and sys.argv[1] in sensor_args:
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sensor = sensor_args[sys.argv[1]]
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pin = sys.argv[2]
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elif len(sys.argv) == 2 and sys.argv[1] == '1820'
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print 'Failed'
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sys.exit(1)
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sensor = sensor_args[sys.argv[1]]
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pin = sys.argv[2]
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elif len(sys.argv) == 2 and sys.argv[1] == '1820':
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print 'Failed'
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sys.exit(1)
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else:
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sys.exit(1)
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sys.exit(1)
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humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
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if humidity is not None:
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print '{0:0.1f}'.format(humidity)
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print '{0:0.1f}'.format(humidity)
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else:
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print 'Failed'
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sys.exit(1)
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print 'Failed'
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sys.exit(1)
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@@ -1,25 +1,4 @@
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#!/usr/bin/python
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# Copyright (c) 2014 Adafruit Industries
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# Author: Tony DiCola
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# Modified by Vitor Henrique
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import sys
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import Adafruit_DHT
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import os
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@@ -28,53 +7,54 @@ import time
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# Parse command line parameters.
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sensor_args = { '11': Adafruit_DHT.DHT11,
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'22': Adafruit_DHT.DHT22,
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'2302': Adafruit_DHT.AM2302 }
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sensor_args = {'11': Adafruit_DHT.DHT11, '22': Adafruit_DHT.DHT22, '2302': Adafruit_DHT.AM2302}
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if len(sys.argv) == 3 and sys.argv[1] in sensor_args:
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sensor = sensor_args[sys.argv[1]]
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pin = sys.argv[2]
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isDHTSensor = True
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elif len(sys.argv) == 2 and sys.argv[1] == '1820'
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os.system('modprobe w1-gpio')
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os.system('modprobe w1-therm')
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base_dir = '/sys/bus/w1/devices/'
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device_folder = glob.glob(base_dir + '28*')[0]
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device_file = device_folder + '/w1_slave'
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isDHTSensor = False
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sensor = sensor_args[sys.argv[1]]
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pin = sys.argv[2]
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isDHTSensor = True
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elif len(sys.argv) == 2 and sys.argv[1] == '1820':
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os.system('modprobe w1-gpio')
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os.system('modprobe w1-therm')
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base_dir = '/sys/bus/w1/devices/'
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device_folder = glob.glob(base_dir + '28*')[0]
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device_file = device_folder + '/w1_slave'
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isDHTSensor = False
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else:
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sys.exit(1)
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sys.exit(1)
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def read_temp_raw():
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f = open(device_file, 'r')
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lines = f.readlines()
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f.close()
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return lines
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f = open(device_file, 'r')
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lines = f.readlines()
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f.close()
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return lines
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def read_temp():
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lines = read_temp_raw()
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while lines[0].strip()[-3:] != 'YES':
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time.sleep(0.2)
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lines = read_temp_raw()
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equals_pos = lines[1].find('t=')
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if equals_pos != -1:
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temp_string = lines[1][equals_pos+2:]
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temp_c = float(temp_string) / 1000.0
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return temp_c
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lines = read_temp_raw()
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while lines[0].strip()[-3:] != 'YES':
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time.sleep(0.2)
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lines = read_temp_raw()
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equals_pos = lines[1].find('t=')
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if equals_pos != -1:
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temp_string = lines[1][equals_pos+2:]
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temp_c = float(temp_string) / 1000.0
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return temp_c
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def read_dht_temp():
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hum, temp = Adafruit_DHT.read_retry(sensor, pin)
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return temp
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hum, temp = Adafruit_DHT.read_retry(sensor, pin)
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return temp
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if isDHTSensor = True:
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temperature = read_dht_temp()
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if temperature is not None:
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print '{0:0.1f}'.format(temperature)
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else:
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print 'Failed'
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sys.exit(1)
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else
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temperature = read_temp()
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print '{0:0.1f}'.format(temperature)
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sys.exit(1)
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temperature = read_dht_temp()
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if temperature is not None:
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print '{0:0.1f}'.format(temperature)
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else:
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print 'Failed'
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sys.exit(1)
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else:
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temperature = read_temp()
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print '{0:0.1f}'.format(temperature)
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sys.exit(1)
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