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DS18B20 bugfix
This commit is contained in:
Vitor de Miranda Henrique
2016-10-10 13:15:44 -05:00
committed by GitHub
parent f28f073d09
commit 006b6cef77
2 changed files with 54 additions and 94 deletions

View File

@@ -1,46 +1,26 @@
#!/usr/bin/python
# Copyright (c) 2014 Adafruit Industries
# Author: Tony DiCola
# Modified by Vitor Henrique
# 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 }
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]
elif len(sys.argv) == 2 and sys.argv[1] == '1820'
print 'Failed'
sys.exit(1)
sensor = sensor_args[sys.argv[1]]
pin = sys.argv[2]
elif len(sys.argv) == 2 and sys.argv[1] == '1820':
print 'Failed'
sys.exit(1)
else:
sys.exit(1)
sys.exit(1)
humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
if humidity is not None:
print '{0:0.1f}'.format(humidity)
print '{0:0.1f}'.format(humidity)
else:
print 'Failed'
sys.exit(1)
print 'Failed'
sys.exit(1)

View File

@@ -1,25 +1,4 @@
#!/usr/bin/python
# Copyright (c) 2014 Adafruit Industries
# Author: Tony DiCola
# Modified by Vitor Henrique
# 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
import os
@@ -28,53 +7,54 @@ import time
# Parse command line parameters.
sensor_args = { '11': Adafruit_DHT.DHT11,
'22': Adafruit_DHT.DHT22,
'2302': Adafruit_DHT.AM2302 }
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]
isDHTSensor = True
elif len(sys.argv) == 2 and sys.argv[1] == '1820'
os.system('modprobe w1-gpio')
os.system('modprobe w1-therm')
base_dir = '/sys/bus/w1/devices/'
device_folder = glob.glob(base_dir + '28*')[0]
device_file = device_folder + '/w1_slave'
isDHTSensor = False
sensor = sensor_args[sys.argv[1]]
pin = sys.argv[2]
isDHTSensor = True
elif len(sys.argv) == 2 and sys.argv[1] == '1820':
os.system('modprobe w1-gpio')
os.system('modprobe w1-therm')
base_dir = '/sys/bus/w1/devices/'
device_folder = glob.glob(base_dir + '28*')[0]
device_file = device_folder + '/w1_slave'
isDHTSensor = False
else:
sys.exit(1)
sys.exit(1)
def read_temp_raw():
f = open(device_file, 'r')
lines = f.readlines()
f.close()
return lines
f = open(device_file, 'r')
lines = f.readlines()
f.close()
return lines
def read_temp():
lines = read_temp_raw()
while lines[0].strip()[-3:] != 'YES':
time.sleep(0.2)
lines = read_temp_raw()
equals_pos = lines[1].find('t=')
if equals_pos != -1:
temp_string = lines[1][equals_pos+2:]
temp_c = float(temp_string) / 1000.0
return temp_c
lines = read_temp_raw()
while lines[0].strip()[-3:] != 'YES':
time.sleep(0.2)
lines = read_temp_raw()
equals_pos = lines[1].find('t=')
if equals_pos != -1:
temp_string = lines[1][equals_pos+2:]
temp_c = float(temp_string) / 1000.0
return temp_c
def read_dht_temp():
hum, temp = Adafruit_DHT.read_retry(sensor, pin)
return temp
hum, temp = Adafruit_DHT.read_retry(sensor, pin)
return temp
if isDHTSensor = True:
temperature = read_dht_temp()
if temperature is not None:
print '{0:0.1f}'.format(temperature)
else:
print 'Failed'
sys.exit(1)
else
temperature = read_temp()
print '{0:0.1f}'.format(temperature)
sys.exit(1)
temperature = read_dht_temp()
if temperature is not None:
print '{0:0.1f}'.format(temperature)
else:
print 'Failed'
sys.exit(1)
else:
temperature = read_temp()
print '{0:0.1f}'.format(temperature)
sys.exit(1)