parser.py

#!/bin/env python2.7

###
### Install http://pyserial.sourceforge.net/pyserial.html#installation
###

import re
import sys
import serial
import time

### SETUP
def setup():
  bestand=open('occfont.txt')
  # Parse chars
  global abc
  abc={}
  for line in bestand.readlines():
    line = line.strip('\n\r')
    if line[:5]=='BEGIN':
      xy={}
      letter=line[6:7]
      y=0
    elif line[:3]=='END':
      abc[letter]={'width':len(charline),'xy':xy}
    else:
      # Parse letterline
      xy[y]=line

      charline=line
      y+=1

  bestand.close()
  print abc.keys()
  global ser
  ser = serial.Serial('/dev/tty.usbmodemfd121',57600,timeout=1)
  ser.read(1000)
  time.sleep(3)
  ser.write("SRGBF")


def getText():
  text=raw_input("Text:")
  return text

def genOutput(text):
  # Build lines
  totalWidth=0
  lines={0:'',1:'',2:'',3:'',4:'',5:''}
  for char in text:
    try:
      lineDict=abc[char.upper()]['xy']
      totalWidth+=abc[char.upper()]['width']
    except KeyError:
      lineDict=abc['*']['xy']
      totalWidth+=abc['*']['width']
      print "Ik ken dit teken niet: "+char

    for y in range(6):
      if(char.isupper()):
        lines[y]+= lineDict[y].replace('1','*')
      else:
        lines[y]+= lineDict[y].replace('1','+')

  spacer='00000000000000000000000000'
  for y in range(6):
    #lines[y]=lines[y]+spacer
    lines[y]=spacer+lines[y]+spacer
    #print lines[y]

  #Steps:
  stepOutLines=[]
  for step in range(1,totalWidth+27):
    curLines={0:'',1:'',2:'',3:'',4:'',5:''}

    # Cut stukje
    for y in range(6):
      curLines[y]+=lines[y][step:step+26]

    stepOutLines.append(curLines)
  return stepOutLines

  
def sendSerial(x):
  #print "Sending: " + x
  ser.write(x)

def sendToBanner(text):
  # Send lines
  
  stepOutLines=genOutput(text)

  sendSerial('S')

  for stepOutLine in stepOutLines:
    #Each step
    if(len(stepOutLine[0])<26):
      break

    for y in range(6):
      #Each line
      thisLine=stepOutLine[y].replace('0','.')

      if(y%2==0):
        sendSerial(thisLine)
      else:
        sendSerial(thisLine[::-1])

    sendSerial('F')

    time.sleep(0.13)

def looper():
  print "Textplztxbai"
  print "Ctrl-C kills"
  
  try:
    text=raw_input("Text:")
  except KeyboardInterrupt:
    print "Bye!"
    ser.close()
    sys.exit()

  print "Sending now. Ctrl-C = new text"
  try:
    while True:
      sendToBanner(text)
  except KeyboardInterrupt:
    pass
    
setup()
while True:
  looper()