I would recommend you setup the tty port in startup scripts or at least
delay after setup.
On Nov 11, 2013 2:21 AM, "Nishant Sood" <nish...@winacro.com> wrote:
> I have a python script running on a raring BBBLack ubuntu image that has
> wiFi working flawlessly, but while using the python script as follows I'm
> see that the script runs but the Request Log on the xively dashboard isn't
> receiving anything?!
>
> Is there a frequency limit for which I can update the feeds?
>
> Or is it my App? Which I think is running and not going down.
>
> here's the code:
>
>
> #!/usr/bin/env python
>
> import os
> import xively
> import subprocess
> import time
> import datetime
> import requests
> import serial
> import re
> import string
> from select import select
>
> #OS variables and other settings for UART transfer
> os.system("sudo chmod 777 -R /sys/devices/bone_capemgr.8/slots")
>
> os.system("sudo echo ttyO1_armhf.com > /sys/devices/bone_capemgr.8/slots")
>
> serial = serial.Serial("/dev/ttyO1", baudrate=9600)
>
> resp = ""
> inData = ['']*14
> started = False
> ended = False
> check_point = 0
> check_point_listener = 0
>
> # extract feed_id and api_key from environment variables
> FEED_ID = "34534"
> API_KEY = "blahhblahh"
> DEBUG = "DEBUG" or false
> DEBUG_listener = "DEBUG" or false
>
> # initialize api client
> api = xively.XivelyAPIClient(API_KEY)
>
> # function to return a datastream object. This either creates a new
> datastream,
> # or returns an existing one
> def get_datastream(feed):
> try:
> datastream = feed.datastreams.get("Lock_Controller")
> if DEBUG:
> print "Found existing datastream"
> return datastream
> except:
> if DEBUG:
> print "Creating new datastream"
> datastream = feed.datastreams.create("Lock_Controller", tags="ON/OFF")
> return datastream
>
> # function to return a datastream object. This either creates a new
> datastream,
> # or returns an existing one
> def get_datastream_listener(feed):
> try:
> datastream_listener = feed.datastreams.get("load_avg")
> if DEBUG:
> print "Found existing datastream"
> return datastream_listener
> except:
> if DEBUG:
> print "Creating new datastream"
> datastream_listener = feed.datastreams.create("load_avg", tags="load_01")
> return datastream_listener
>
>
> # main program entry point - runs continuously updating our datastream with
> the
> def run():
> print "Script initiation"
>
> #Initializing one channel
> feed = api.feeds.get(FEED_ID)
> datastream = get_datastream(feed)
> datastream.max_value = None
> datastream.min_value = None
> #Initializing one channel
> feed_listener = api.feeds.get(FEED_ID)
> datastream_listener = get_datastream_listener(feed_listener)
> datastream_listener.max_value = None
> datastream_listener.min_value = None
>
> while True:
> while serial.inWaiting() > 0:
> inChar = serial.read() # Read a character
> if inChar =='<': # not sure what to put in if statement to run
> until end
> global started
> started = True
> global ended
> ended = False
> index = 0
> elif inChar =='>':
> global ended
> ended = True
> if started == True:
> inData[index] = inChar # Store it
> index = index + 1 # Increment where to write next
> #inData[index] = '\0' # Null terminate the string
> if ended == True:
> global ended
> ended = False
> index = 0
> Data = inData #values of acclerometer like "545X" etc enter and
> stored in Data
> print (Data)
> values = "".join(str(v) for v in Data)
> print (values)
> strData = string.replace(values, "<", "")
> strData = string.replace(strData, ">", "")
> strData = string.replace(strData, " ", "")
> strData = string.replace(strData, "\0", "")
> print (strData)
> if strData[0] == 's' and strData[1] == 't':
> print "Nishant Here"
> strData = string.replace(strData, "st", "")
> strData = string.replace(strData, "\0", "")
> strData = string.replace(strData, " ", "")
> print strData
> if strData == '1':
> print "This is arrived at 1"
> global check_point_listener
> datastream_listener.current_value =
> str(check_point_listener) + "h"
> datastream_listener.update()
> #serial.write("<v0" + str(check_point) + ">") #serial
> write value
> time.sleep(1)
> datastream_listener.current_value = 0
> datastream_listener.update()
> elif strData == '0':
> print "This is arrived at 0"
> global check_point_listener
> datastream_listener.current_value =
> str(check_point_listener) + "L"
> datastream_listener.update()
> time.sleep(1)
> datastream_listener.current_value = 0
> datastream_listener.update()
> if DEBUG:
> print "Updating Xively feed with value: %s"
> global check_point
> check_point = 0
> datastream = get_datastream(feed)
> global check_point
> check_point = datastream.current_value
> print "AAGYa: %s" % check_point
> for x in range(1,61):
> #print x
> checking = int(check_point)
> if x == checking:
> print "Got it"
> serial.write("<ch" + str(x) + ">")
> datastream.current_value = 0
> datastream.update()
> if DEBUG_listener:
> print "Query stuff: %s"
> global check_point_listener
> check_point_listener = 0
> datastream_listener = get_datastream_listener(feed_listener)
> global check_point_listener
> check_point_listener = datastream_listener.current_value
> print "AAGYa: %s" % check_point_listener
> check_point_listener = string.replace(check_point_listener,
> "L", "")
> check_point_listener = string.replace(check_point_listener,
> "h", "")
> for x in range(1,61):
> #print x
> checking = int(check_point_listener)
> if x == checking:
> print "Got it Query"
> serial.write("<Q" + str(x) + ">")
>
> run()
>
>
>
>
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