When using this script to blink an LED on pin12, the script will not get past line27 where pin12 is set high. There is no error message.
How do I structure this script so that Firmata works on each loop? I am interested to learn why the script doesn't work at all but the LED example script will.
import json
import urllib
from firmata import *
from pprint import pprint
import time
import serial
countTweet = 0
a = Arduino('COM13') #Insert this before the while loop = it never actually works
a.delay(2)
while True:
try:
response = urllib.urlopen('http://search.twitter.com/search.json?q=%23happy&result_type=recent&rpp=1&filter:retweets').read()
except IOError:
pprint('no internet connection')
time.sleep(5)
continue
j = json.loads(response)
if j['results']:
text = j['results'][0]['text']
tID = j['results'][0]['id']
else:
pprint('bad JSON')
if countTweet != 0 and lastID != tID:
pprint('new ID')
a.pin_mode(12, firmata.OUTPUT) #Gets stuck here
a.delay(2)
a.digital_write(12, firmata.HIGH)
a.delay(2)
a.digital_write(12, firmata.LOW)
pprint('done firmata')
lastID = tID
pprint (text)
pprint ('1')
else:
pprint("FLC") #First loop complete: To gather the existing tweet before we start
lastID = tID
countTweet += 1
time.sleep(15)