data_collect_sensors.py

import RPi.GPIO as GPIO
import os
import Adafruit_DHT
import time
import sys
from datetime import datetime
 
# Set sensor type : Options are DHT11,DHT22 or AM2302
sensor=Adafruit_DHT.DHT11
 
# Set GPIO sensor is connected to
# pin 4: bathroom ()
# pin 6: bedroom 1 (under Living Rm)
# pin 12: Kitchen 1 (by Living Rm door)
# pin 18: kitchen 2 (by bedroom 2)
# pin 24: Living Rm 1 (far corner)
# pin 25: Living Rm 2 (by doors)
# pin 26: bedroom 2 (under kitchen)

gpioArray=[4,6,12,18,24,25,26]
 
# Use read_retry method. This will retry up to 15 times to
# get a sensor reading (waiting 2 seconds between each retry).

#humidity, temperature = Adafruit_DHT.read_retry(sensor, gpio)
 
# get temp and check if valid

def checkTemp (gpio):
    if humidity is None:
        print("Bad data")
    elif humidity is not None and temperature is not None:
        temp = (temperature * 9.0 / 5.0) + 32
        print('Temp={0:0.2f}*F  Humidity={1:0.2f}%'.format(temp, humidity))
    else:
        print('Failed to get reading. Try again!')

def setup():
    GPIO.setmode(GPIO.BCM)
    
    GPIO.setup(21, GPIO.OUT) #set heating lamp as output
    GPIO.setup(20, GPIO.OUT) #set fan as output
    
    GPIO.output(21, GPIO.LOW)
    GPIO.output(20, GPIO.LOW)

# LAMP
def turnOffLamp(pin):
	GPIO.output(pin, GPIO.LOW)
	
def turnOnLamp(pin):
	GPIO.output(pin, GPIO.HIGH)
	
#FAN
def turnOffFan(pin):
	GPIO.output(pin, GPIO.LOW)
	
def turnOnFan(pin):
	GPIO.output(pin, GPIO.HIGH)

seconds = 0
lamp_state = 0
fan_state = 0

setup()
turnOnLamp(21)
lamp_state = 1
turnOnFan(20)
fan_state = 1

try:
    while(True):
        #getTemp(18)
        with open("random_dataset4.txt", "a") as datafile:
            datafile.write('\n')
            datafile.write(str(datetime.now()) + '\t')
            
            datafile.write(str(lamp_state) + '\t')
            datafile.write(str(fan_state) + '\t')
            
            print("collecting data")
            for pin in gpioArray:
                humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
                print(pin)
                checkTemp(pin)
                temp = 0
                if humidity is None:
                    # bad data?
                    humidity = -1
                if temperature is None:
                    # bad data?
                    temp = -1
                else:
                    temp = (temperature * 9.0 / 5.0) + 32
                
                datafile.write(str(humidity) +'\t')
                datafile.write(str(temp) + '\t')
                        
                
            
        for i in range(0,60):
            print('Next reading in: ' + str(i)+'/60', flush=True)
            time.sleep(1)
            seconds += 1
            
            if seconds % 900 == 0:
                if lamp_state == 0:
                    print("turning on lamp")
                    turnOnLamp(21)
                    lamp_state = 1
                else:
                    print("turning off lamp")
                    turnOffLamp(21)
                    lamp_state = 0
                    
            if seconds % 300 == 0:
                if fan_state == 0:
                    print("turning on fan")
                    turnOnFan(20)
                    fan_state = 1
                else:
                    print("turning off fan")
                    turnOffFan(20)
                    fan_state = 0
except KeyboardInterrupt:
        print("Keyboard Interrupt")
except Exception as e: 
    	print(e)
finally:
        GPIO.cleanup()