Windows Phone to Arduino via Touchdevelop

# Proof of concept Python script to receive POST data (over network) from a Touchdevelop app to send to an Arduino
# Tested/developed on Python version 2.7.3

""" NOTE: I'm a newbie Python programmer, the server bit's mostly cut n paste from elsewhere and the POST data processing to Arduino bit
    was learnt on the fly. This script is supplied as is, feel free to chop, change point and laugh etc but I cant't supply much
    in the way of support.
    Midge
"""

from BaseHTTPServer import BaseHTTPRequestHandler
# Set serial Arduino port
# You'll need the PYSerial module if it's not already installed
import serial
ser = serial.Serial('COM3', 9600,) #Note COM3,
ser.write(chr(0)) #reset Arduino LED's on startup

#Set Port to listen on
my_port = 90

buttonstatus = 0 #declare buttonstatus

# datasend fnc receives POST data and sends it to the Arduino oveer Serial
def datasend(input):

        global buttonstatus
        decimal_val=int(input) # turn POST data to a number (int)
        if decimal_val==255: #shake to reset
         print("Phone Shook (reset)") # Debug info
         blank=chr(0)
         ser.write(blank) # Write 0 to Arduino, turn off LED's
         buttonstatus=0 # reset values



        else:

         buttonstatus ^= (decimal_val) # Take incoming data and XOR it with current (to toggle LED value)
         print 'Data sent (binary) ' + (bin(buttonstatus)) # Debug info
         send_val=chr(buttonstatus) # Convert to char**
         ser.write(send_val) # Send data over serial to Arduino

""" ** This was a bloody pain to get working!, it turned out that Pyserial sends data as strings so my lovely binary numbers
     were being mangled before being sent. The workaround is to convert the number into the corresponding character and send that,
     The Arduino is set to read a (one byte) char from serial.
"""

class PostHandler(BaseHTTPRequestHandler):

    def do_POST(self):
        content_len = int(self.headers.getheader('content-length'))
        post_body = self.rfile.read(content_len) # Read Post data
        datasend(post_body) # Call datasend function and pass POST data


        # Below commented out, no response set to phone
        # Begin the response
        #self.send_response(200)
        #self.end_headers()
        #self.wfile.write('Client: %s\n' % str(self.client_address))
        #self.wfile.write('Path: %s\n' % self.path)
        #self.wfile.write('Form data:\n')




        return




if __name__ == '__main__':
    from BaseHTTPServer import HTTPServer
    server = HTTPServer(('', my_port), PostHandler)
    print 'Starting server, use <Ctrl-C> to stop'
    server.serve_forever()