import RPi.GPIO as GPIO # import GPIO import time #import time from urllib2 import Request, urlopen, URLError #import URL tools import pywapi #import weather api import string #import string import datetime #import date time lib import json #import json lib for parsing import unirest #import unirest import math#import math import threading #import threading for use with time import Adafruit_CharLCD as LCD#import LCD screen and claim object #initialize LCD lcd = LCD.Adafruit_CharLCDPlate() #this function uses pywapi and pings the NOAA site to recieve weather information from a hard coded #station, station identities can be found at w1.weather.gov/xml/current_obs/seek.php?state=az&Find=Find def weather(): try: #try catch result = pywapi.get_weather_from_noaa('KPHL') #ping pywapi to contact NOAA weather = string.lower(result['weather']) + " \n" + result['temp_f'] + " F." #give parsed weather information lcd.message(weather) #print weather information to lcd screen except URLError, e: #if API cannot be contacted throw URL error lcd.message('could not connect to weather service'), e #this function pings numbersapi to give trivia def trivia(): lcd.clear() #clear lcd screen request = Request('http://numbersapi.com/random/trivia') #request is from numbers API while True: try: response = urlopen(request) #use urlopen library to get response trivia = response.read() #read response from API while len(trivia) < 80: if len(trivia) > 60: #if entry is greater than 60 characters, break it up into two messages s = trivia lcd.message(s[0:len(trivia)/2])#slice trivia message in half and post first half lcd.message("\n") #start new line lcd.message(s[len(trivia)/2:len(trivia)]) #slice trivia and print second half else: #if message is small just print without breaking up lcd.message(trivia) while True: #loop through to use button if lcd.is_pressed(LCD.SELECT): #while select button is pressed, scroll left lcd.move_left() time.sleep(.1) elif ((lcd.is_pressed(LCD.RIGHT))or (lcd.is_pressed(LCD.DOWN)) or (lcd.is_pressed(LCD.LEFT))): break else: continue if ((lcd.is_pressed(LCD.RIGHT))or (lcd.is_pressed(LCD.DOWN)) or (lcd.is_pressed(LCD.LEFT))): break else: continue except URLError, e: #if API cannot be contacted throw URL error lcd.message('could not connect to trivia api'), e if ((lcd.is_pressed(LCD.RIGHT))or (lcd.is_pressed(LCD.DOWN)) or (lcd.is_pressed(LCD.LEFT))): break else: continue #this function calls a fact API and gives back a famous quote def quote(): lcd.clear() #clear LCD while True: try: response = unirest.post("https://andruxnet-random-famous-quotes.p.mashape.com/cat=famous", #use unirest to ping quote API headers= { "X-Mashape-Key": "", #use API key from Mashape.com "Content-Type": "application/x-www-form-urlencoded", #define content type "accept": "application/json" #confirm JSON format }, params={ "parameter": 23, "foo": "bar"}#parameters for JSON ) quote = response.raw_body #create variable for raw JSON response json_string = quote #identify JSON response as string parsed_json = json.loads(quote)#create variable foor JSON parse quoteParse = (parsed_json['quote']) + " -" + (parsed_json['author']) #create variable for Parsed response while True: #as with trivia API, filter out responses of over 80 characters if len(quoteParse) > 80: break elif len(quoteParse) > 60: #if length of parsed quote is over 60, break it up among two lines s = quoteParse lcd.message(s[0:len(quoteParse)/2]) #slice parsed message, post first half lcd.message("\n") #new line lcd.message(s[len(quoteParse)/2:len(quoteParse)]) #slice parsed message, post second half else: #if parsed quote is short, do nothing and just post quote lcd.message(quoteParse) while True: #loop through each button to check, as the select button is pressed, scroll left if lcd.is_pressed(LCD.SELECT): lcd.move_left() time.sleep(.1) elif (lcd.is_pressed(LCD.RIGHT))or (lcd.is_pressed(LCD.UP)) or (lcd.is_pressed(LCD.LEFT)): break else: continue if (lcd.is_pressed(LCD.RIGHT))or (lcd.is_pressed(LCD.UP)) or (lcd.is_pressed(LCD.LEFT)): break else: continue except URLError, e: #if API cannot be contacted throw URL error lcd.message('could not connect to quote api'), e if (lcd.is_pressed(LCD.RIGHT))or (lcd.is_pressed(LCD.UP)) or (lcd.is_pressed(LCD.LEFT)): break else: continue #this function calls a time API and gives accurate time based off of a timestamp generated from JSON def giveTime(): lcd.clear() try: response = unirest.get("http://api.timezonedb.com/?zone=America/New_York&format=json&key=", #receive time data from timezone API headers = { "key": "", #use key generated "accept": "application/json" #verify json response }, ) timeZone = response.raw_body #give raw JSON respons json_int = timeZone #parse timeStamp to integer to allow timestamp corrections parsed_json = json.loads(timeZone) #parse JSON call timeStamp = (parsed_json["timestamp"] + 14400) #timestamp plus offset value = datetime.datetime.fromtimestamp(timeStamp) #use timeStamp with date time library to format date and time readOut = (value.strftime('%Y-%m-%d %I:%M %p')) #format date and time lcd.message(readOut) #readout formatted time data except URLError, e: lcd.message('could not contact time api'),e #enter Main Method lcd.message('Welcome to PiHub!') while True: #loop through each button to check if lcd.is_pressed(LCD.RIGHT): lcd.clear() weather() if lcd.is_pressed(LCD.LEFT): lcd.clear() giveTime() if lcd.is_pressed(LCD.UP): lcd.clear() trivia() if lcd.is_pressed(LCD.DOWN): lcd.clear() quote() ## if lcd.is_pressed(LCD.SELECT): ## break GPIO.cleanup()#clean up