This script will allow you to use twitter as a live feed or surveillance device that uploads content directly to twitter.

On my Pi I used a Waveshare night vision camera, but you can use any type of camera.

Step 1: Create a Twitter App

Go to https://apps.twitter.com/ and create a new app for your Raspberry Pi script. You will need to already have a Twitter account to do this.

Under the "Keys and Access Tokens" tab is where you will find what you need to implement into the code.

Step 2: Install Tweepy

Download and upgrade tweepy with:

sudo pip install tweepy --upgrade

Step 3: Write the Script

#!/usr/bin/env python2.7

import tweepy
import time
import random
from subprocess import call
from datetime import datetime

#These are the phrases variables that will be sent with the tweet
tweet = ['A tweet from my pi  ', 'Hello!  ']

while True:

        #time and date for filename
        i = datetime.now()               
        now = i.strftime('%Y%m%d-%H%M%S')
        photo_name = now + '.jpg'
        #creates command and destination for photo
        cmd = 'raspistill -t 500 -w 1024 -h 768 -o /tmp/' + photo_name
        #shoot the photo
        call ([cmd], shell=True)

        # Replace each with the keys and tokens from your twitter app
        consumer_key = 'nzY1xjjTtglUvfEP14XZrpn9A'
        consumer_secret = 'fn9VTJwZF1kSJKUFKdrxMpiwwWFohvaWlkiPQRyj2oRZ7c9ojV'
        access_token = '2775601040-LlC1dTEwMCwPgASSXwQdXC2R1KjHYsKjrk3ASnE'
        access_token_secret = '5irgLOLbIqeYjswY0cDjsunL1feMKW50k9NxFC04kFExD'

        # OAuth process, using the keys and tokens
        auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
        auth.set_access_token(access_token, access_token_secret)

        # Creation of the actual interface, using authentication
        api = tweepy.API(auth)

        # Send photo to destination
        photo_path = '/tmp/' + photo_name
        # Tweet text
        status = (random.choice(tweet)) +  i.strftime('%Y/%m/%d %H:%M:%S')
         # Send the tweet with photo
        api.update_with_media(photo_path, status=status)

        #How many seconds before the script runs again
        time.sleep(900)

Step 4: Modify the Script

Where it asks for the consumer key, consumer secret, access token, and access token secret, you will want to insert the code generated in your twitter app.

You will probably want to change the duration between photos being sent as well as the information sent with the tweets.

To change how often a tweet is sent, you change the amount of seconds to sleep in time.sleep().

To change what phrases are tweeted with the photo, you edit tweet = [] at the top of the script.