dht22_fan.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

import datetime
import calendar
import time
import os
import subprocess


def checkhumidity():
    p = subprocess.Popen(["/project/dht22/monitor/humidity.sh"], stdout=subprocess.PIPE)
    getstatus = p.communicate()[0].strip()
    return float(getstatus) + 0

def checktemperature():
    p = subprocess.Popen(["/project/dht22/monitor/temperature.sh"], stdout=subprocess.PIPE)
    getstatus = p.communicate()[0].strip()
    return float(getstatus) + 0

def onoffstatus():
    p = subprocess.Popen(["/project/dht22/monitor/status.sh"], stdout=subprocess.PIPE)
    onoffstatus = p.communicate()[0].strip()
    return int(float(onoffstatus)) + 0


levelhumidity = 30

def min():
    temp = 0
    #temp = checktemperature()
    humidity = checkhumidity()
    hnow = datetime.datetime.now().strftime('%H:%M:%S')
    if (levelhumidity > humidity):
        if (onoffstatus() == 1):
            os.system("/project/dht22/monitor/off.sh")
        time.sleep(5)
        #print(u"мин. Час:%s темп:%s - влажност:%s - вентилатор:%s ".encode('utf-8') %(hnow,temp,humidity,onoffstatus()))
        min()
    else:
        pass

def max():
    temp = 0
    #temp = checktemperature()
    levelhumidity = 27
    humidity = checkhumidity()
    hnow = datetime.datetime.now().strftime('%H:%M:%S')
    if (levelhumidity < humidity):
        if (onoffstatus() < 1):
            os.system("/project/dht22/monitor/on.sh")
        time.sleep(60)
        #print(u"макс. Час:%s темп:%s - влажност:%s - вентилатор:%s ".encode('utf-8') %(hnow,temp,humidity,onoffstatus()))
        max()
    else:
        pass


#print u"Старт".encode('utf-8')
try:
    while True:            # this will carry on until you hit CTRL+C
        temp = 0
        #temp = checktemperature()
        humidity = checkhumidity()
        hnow = datetime.datetime.now().strftime('%H:%M:%S')
        if (humidity > levelhumidity):
            #print(u"старт макс. Час:%s темп:%s - влажност:%s - вентилатор:%s ".encode('utf-8') %(hnow,temp,humidity,onoffstatus()))
            max()
            time.sleep(1)
        if (humidity < levelhumidity):
            #print(u"старт мин. Час:%s темп:%s - влажност:%s - вентилатор:%s ".encode('utf-8') %(hnow,temp,humidity,onoffstatus()))
            min()
            time.sleep(1)

except KeyboardInterrupt:
    pass
finally:                   # this block will run no matter how the try block exits..
    pass