{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "# [Morse code tutorial](http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robot/morse_code/)"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import RPi.GPIO as GPIO\n",
      "import time"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "pinNum = 25\n",
      "GPIO.setmode(GPIO.BCM) #numbering scheme that corresponds to breakout board and pin layout\n",
      "GPIO.setup(pinNum,GPIO.OUT) #replace pinNum with whatever pin you used, this sets up that pin as an output"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 5
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "#set LED to flash forever\n",
      "while True:\n",
      "  GPIO.output(pinNum,GPIO.HIGH)\n",
      "  time.sleep(0.5)\n",
      "  GPIO.output(pinNum,GPIO.LOW)\n",
      "  time.sleep(0.5)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "KeyboardInterrupt",
       "evalue": "",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[1;31mKeyboardInterrupt\u001b[0m                         Traceback (most recent call last)",
        "\u001b[1;32m<ipython-input-6-e0f3f22f493d>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m()\u001b[0m\n\u001b[0;32m      4\u001b[0m   \u001b[0mtime\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0msleep\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m0.5\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m      5\u001b[0m   \u001b[0mGPIO\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0moutput\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mpinNum\u001b[0m\u001b[1;33m,\u001b[0m\u001b[0mGPIO\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0mLOW\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 6\u001b[1;33m   \u001b[0mtime\u001b[0m\u001b[1;33m.\u001b[0m\u001b[0msleep\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;36m0.5\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
        "\u001b[1;31mKeyboardInterrupt\u001b[0m: "
       ]
      }
     ],
     "prompt_number": 6
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "GPIO.output(pinNum,GPIO.LOW)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 7
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "CODE = {' ': ' ', \n",
      "        \"'\": '.----.', \n",
      "        '(': '-.--.-', \n",
      "        ')': '-.--.-', \n",
      "        ',': '--..--', \n",
      "        '-': '-....-', \n",
      "        '.': '.-.-.-', \n",
      "        '/': '-..-.', \n",
      "        '0': '-----', \n",
      "        '1': '.----', \n",
      "        '2': '..---', \n",
      "        '3': '...--', \n",
      "        '4': '....-', \n",
      "        '5': '.....', \n",
      "        '6': '-....', \n",
      "        '7': '--...', \n",
      "        '8': '---..', \n",
      "        '9': '----.', \n",
      "        ':': '---...', \n",
      "        ';': '-.-.-.', \n",
      "        '?': '..--..', \n",
      "        'A': '.-', \n",
      "        'B': '-...', \n",
      "        'C': '-.-.', \n",
      "        'D': '-..', \n",
      "        'E': '.', \n",
      "        'F': '..-.', \n",
      "        'G': '--.', \n",
      "        'H': '....', \n",
      "        'I': '..', \n",
      "        'J': '.---', \n",
      "        'K': '-.-', \n",
      "        'L': '.-..', \n",
      "        'M': '--', \n",
      "        'N': '-.', \n",
      "        'O': '---', \n",
      "        'P': '.--.', \n",
      "        'Q': '--.-', \n",
      "        'R': '.-.', \n",
      "        'S': '...', \n",
      "        'T': '-', \n",
      "        'U': '..-', \n",
      "        'V': '...-', \n",
      "        'W': '.--', \n",
      "        'X': '-..-', \n",
      "        'Y': '-.--', \n",
      "        'Z': '--..', \n",
      "        '_': '..--.-'}"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 8
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "msg = \"Yoav Ram\""
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 9
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "for c in msg:\n",
      "    print c,\n",
      "    for signal in CODE[c.upper()]:\n",
      "        print signal,\n",
      "        if signal != ' ':\n",
      "            GPIO.output(pinNum,GPIO.HIGH)\n",
      "            if signal == '.':\n",
      "                time.sleep(0.25)\n",
      "            if signal == '-':\n",
      "                time.sleep(0.5)\n",
      "        GPIO.output(pinNum,GPIO.LOW)\n",
      "        time.sleep(0.5)\n",
      "    time.sleep(0.5)\n",
      "GPIO.output(pinNum,GPIO.LOW)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Y - "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        ". "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "o - "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "a . "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "v . "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        ". "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        ". "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "    "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "R . "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        ". "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "a . "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "- "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "m - "
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "-\n"
       ]
      }
     ],
     "prompt_number": 10
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [],
     "language": "python",
     "metadata": {},
     "outputs": []
    }
   ],
   "metadata": {}
  }
 ]
}