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September 13, 2015 13:24
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raspberry pi window control
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#import urllib2 | |
from httplib2 import Http | |
from urllib import urlencode | |
import RPi.GPIO as GPIO | |
from time import sleep | |
import os | |
import glob | |
import json | |
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' | |
def read_temp_raw(): | |
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 | |
temp_f = temp_c * 9.0 / 5.0 + 32.0 | |
return temp_f | |
#instantiate GPIO | |
GPIO.setmode(GPIO.BOARD) | |
GPIO.setup(22, GPIO.OUT) | |
while True: | |
temp = read_temp() | |
print temp | |
#http://expressthing.herokuapp.com | |
h = Http() | |
#data = '{"status":"unknown","tempf":"'+str(temp)+'"}' | |
data = dict('status'="unknown", 'tempf'=str(temp)) | |
#print urlencode(data) | |
#resp, content =h.request("https://expressthing.herokuapp.com", "POST", urlencode() | |
print data | |
resp, content = h.request("http://expressthing.herokuapp.com/api/temp", "POST", urlencode(data)) | |
print resp | |
content_json = json.loads(content) | |
print content_json['windowStatus'] | |
if content_json['windowStatus'] == 'opened': | |
GPIO.output(22,True) | |
#print 'its open' | |
else: | |
GPIO.output(22,False) | |
#print 'its closed' | |
sleep(3) | |
GPIO.cleanup() |
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