Raspberry Pi Twitter Monitor

Contributors: Shawn Hymel

Code

With our packages installed, we can write our program. Open up a text editor and make a new Python script. For example:

language:python
nano TweetBlinky.py

In the new file, enter the code below.

language:python
import time
import RPi.GPIO as GPIO
from twython import TwythonStreamer

# Search terms
TERMS = '#yes'

# GPIO pin number of LED
LED = 22

# Twitter application authentication
APP_KEY = 'erRilYZd8UzsXEFycmg'
APP_SECRET = 'Yt0fGlNvCyr1sFaC6ymdNhphHchaWbz0ECdotEXIQQ'
OAUTH_TOKEN = '1969690717-6a2RgVPXanSBaAjuie7EmUWZh78me8UZ6UxcM8V'
OAUTH_TOKEN_SECRET = 'UIrYV2XbYZC3vHzer6ZxIDwqVa0VvynQLDJYnSQV0R3xt'

# Setup callbacks from Twython Streamer
class BlinkyStreamer(TwythonStreamer):
        def on_success(self, data):
                if 'text' in data:
                        print data['text'].encode('utf-8')
                        print
                        GPIO.output(LED, GPIO.HIGH)
                        time.sleep(0.5)
                        GPIO.output(LED, GPIO.LOW)

# Setup GPIO as output
GPIO.setmode(GPIO.BOARD)
GPIO.setup(LED, GPIO.OUT)
GPIO.output(LED, GPIO.LOW)

# Create streamer
try:
        stream = BlinkyStreamer(APP_KEY, APP_SECRET, OAUTH_TOKEN, OAUTH_TOKEN_SECRET)
        stream.statuses.filter(track=TERMS)
except KeyboardInterrupt:
        GPIO.cleanup()

Alternatively, you can download a zip file of the script here.

IMPORTANT: You will need to change the Twitter authentication tokens! Right now, they are set to my example application. Copy the strings from the your dev.twitter.com page (the single quotes are needed):

language:python
APP_KEY = ‘<Your Consumer Key>’
APP_SECRET = ‘<Your Consumer Secret>’
OAUTH_TOKEN = ‘<Your Access Token>’
OAUTH_TOKEN_SECRET = '<Your Access Token Secret>’'

Save and exit (ctrl + X and ‘y’ if you are using nano).