樹莓パイ接続DHT 11温湿度センサー(python)

#!/usr/bin/python

import RPi.GPIO as GPIO
import time

channel = 16			#   16
data = []			#    
j = 0				#   

GPIO.setmode(GPIO.BCM)		# BCM    

time.sleep(1)			#    

GPIO.setup(channel, GPIO.OUT)

GPIO.output(channel, GPIO.LOW)
time.sleep(0.02)		#            
GPIO.output(channel, GPIO.HIGH)

GPIO.setup(channel, GPIO.IN)

while GPIO.input(channel) == GPIO.LOW:
	continue

while GPIO.input(channel) == GPIO.HIGH:
	continue

while j < 40:
	k = 0
	while GPIO.input(channel) == GPIO.LOW:
		continue
	
	while GPIO.input(channel) == GPIO.HIGH:
		k += 1
		if k > 100:
			break
	
	if k < 8:
		data.append(0)
	else:
		data.append(1)

	j += 1

print "sensor is working."
print data				#          

humidity_bit = data[0:8]		#  
humidity_point_bit = data[8:16]
temperature_bit = data[16:24]
temperature_point_bit = data[24:32]
check_bit = data[32:40]

humidity = 0
humidity_point = 0
temperature = 0
temperature_point = 0
check = 0

for i in range(8):
	humidity += humidity_bit[i] * 2 ** (7 - i)				#        
	humidity_point += humidity_point_bit[i] * 2 ** (7 - i)
	temperature += temperature_bit[i] * 2 ** (7 - i)
	temperature_point += temperature_point_bit[i] * 2 ** (7 - i)
	check += check_bit[i] * 2 ** (7 - i)

tmp = humidity + humidity_point + temperature + temperature_point		#        

if check == tmp:								#    ，     
	print "temperature : ", temperature, ", humidity : " , humidity
else:										#        ，     
	print "wrong"
	print "temperature : ", temperature, ", humidity : " , humidity, " check : ", check, " tmp : ", tmp

GPIO.cleanup()									#