#!/usr/bin/env python
import glob
import time

# should be executed at boot in /etc/modules  or else do it via bash script like shown below.
#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_c, temp_f

if __name__ == "__main__":
    print '%f, %f'%(time.time(), read_temp()[0])

	

import sys
import time
import Adafruit_DHT

path_data_dir = "/home/pi/pathToDataDirectory/"

def writeToFile(humidityval):
        file = open(path_data_dir+"humidity_val.dat", "w")
        file.write(str(humidityval))
        file.close()

humidity, temperature = Adafruit_DHT.read_retry('11', '17')

if humidity is not None and temperature is not None:
	#print 'Temp={0:0.1f}*C  Humidity={1:0.1f}%'.format(temperature, humidity)
	print '{0:f}, {1:0.1f}'.format(time.time(),humidity)
	writeToFile(humidity)
else:
	print 'Failed to get reading. Try again!'

	

import Adafruit_BMP.BMP085 as BMP085

sensor = BMP085.BMP085()
def getpressure():
	strP = '{0:0.2f} mmHg'.format(sensor.read_pressure()*0.00750061683)
	strAlt = '{0:0.2f} m'.format(sensor.read_altitude())
	return strP+" at "+strAlt

	

#!/usr/bin/env python

import io
import numpy as np
import tweepy
import sys
import matplotlib
import random

matplotlib.use('Agg')
matplotlib.rcParams['timezone'] = 'Asia/Kolkata'  # Replace with your time zone

import matplotlib.pyplot as plt
from pytz import timezone
import pytz
from matplotlib.dates import DateFormatter
from probetemp import read_temp
from pressure import getpressure
from datetime import datetime

# Twitter API Keys
CONSUMER_KEY = ''
CONSUMER_SECRET = ''
ACCESS_KEY = ''
ACCESS_SECRET = ''

# Set file paths - Don't forget trailing slash 

path_data_dir = "/home/pi/pathToDataDirectory/"
path_image_dir = "/home/pi/pathToImageDirectory/"

# Read the data file

## Plot temperature graph
data = np.genfromtxt( path_data_dir+'probetemp.dat', delimiter=',')
dates = matplotlib.dates.epoch2num(data[:,0])
tempdata = data[:,1]
fig, ax = plt.subplots(figsize=(6,5))
ax.plot_date( dates, tempdata, ls='-', color='blue' )
ax.xaxis.set_major_formatter( DateFormatter('%d/%m/%y %H:%M'))
ax.set_ylabel('Temperature C')
for label in ax.get_xticklabels():
    label.set_rotation(60)
plt.tight_layout()
plt.savefig(path_image_dir+'probetemplot.png', bbox_inches='tight')

## Plot humidity graph
datahumidity = np.genfromtxt(path_data_dir+'humidity.dat', delimiter=',')
dateshum = matplotlib.dates.epoch2num(datahumidity[:,0])
tempdatahum = datahumidity[:,1]
fighum, axhum = plt.subplots(figsize=(6,5))
axhum.plot_date( dateshum, tempdatahum, ls='-', color='green' )
axhum.xaxis.set_major_formatter( DateFormatter('%d/%m/%y %H:%M'))
axhum.set_ylabel('Humidity %')
for label in axhum.get_xticklabels():
    label.set_rotation(60)
plt.tight_layout()
plt.savefig(path_image_dir+'humidity.png', bbox_inches='tight')

## Plot combined graph of humidity and temperature to tweet using tweepy
figuremain = plt.figure(figsize=(8, 6), dpi=80)
ax = figuremain.add_subplot(211)
ax.plot_date( dates, tempdata, ls='-', color='blue' )
ax.xaxis.set_major_formatter( DateFormatter('%d/%m/%y %H:%M'))
ax.set_ylabel('Temperature C')
for label in ax.get_xticklabels():
    label.set_rotation(60)
axhum = figuremain.add_subplot(212)
axhum.plot_date( dateshum, tempdatahum, ls='-', color='green' )
axhum.xaxis.set_major_formatter( DateFormatter('%d/%m/%y %H:%M'))
axhum.set_ylabel('Humidity %')
for label in axhum.get_xticklabels():
    label.set_rotation(60)
plt.tight_layout()
plt.savefig(path_image_dir+'combined.png', bbox_inches='tight')

# Get latest humidity value from file
file = open(path_data_dir+'humidity_val.dat', 'r')
humval = file.read()
file.close()

## Tweet or Print!
auth = tweepy.OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET)
auth.set_access_token(ACCESS_KEY, ACCESS_SECRET)
api = tweepy.API(auth)

tz = timezone("Asia/Kolkata")
ftime = datetime.now()
finaltime = tz.localize(ftime)
photo_path = path_image_dir+'combined.png'
cel = read_temp()[0]
temp = u"City: %.2f\u2103 | "%cel

status = temp+" Humidity "+humval+"% - (IST) "+finaltime.strftime('%d/%m/%Y %H:%M:%S')+" | Atmospheric pressure: "+getpressure()
status = status.encode('utf-8')
api.update_with_media(photo_path, status=status)
#print status

	

#!/bin/bash
sudo modprobe w1-gpio
sudo modprobe w1-therm

#Change directory paths here. No trailing slashes needed. 
DATADIR="/home/pi/pathToDataDirectory"
SCRIPTDIR="/home/pi/pathToDirectoryWithScripts"

#Change file names if in case you used different file names.
echo `python "$SCRIPTDIR/probetemp.py"` >> "$DATADIR/probetemp.dat";
echo `python "$SCRIPTDIR/humidity.py"` >> "$DATADIR/humidity.dat";

if [ $? -eq 0 ]; then
	if echo `python "$SCRIPTDIR/plotter.py"`; then
		sleep 1
		#Do something else here. Like auto upload to images to server using ftp?
	else
		echo INFAIL
	fi
else
	echo FAIL
fi