Bricklett Morse generator.

Posted on 1st March 2016 by John

So my cubs last night did a James Bond themed evening with various code breaking opportunities. Useing My raspberry pi tablet i used https://www.cl.cam.ac.uk/ Morse code program to flash an led. Some work after cubs made the following program that beeps a buzzer and writes out the dash and dots on the screen.

Morse code flash


import RPi.GPIO as GPIO

import time
CODE = {' ': ' ',

        "'": '.----.',

        '(': '-.--.-',

        ')': '-.--.-',

        ',': '--..--',

        '-': '-....-',

        '.': '.-.-.-',

        '/': '-..-.',

        '0': '-----',

        '1': '.----',

        '2': '..---',

        '3': '...--',

        '4': '....-',

        '5': '.....',

        '6': '-....',

        '7': '--...',

        '8': '---..',

        '9': '----.',

        ':': '---...',

        ';': '-.-.-.',

        '?': '..--..',

        'A': '.-',

        'B': '-...',

        'C': '-.-.',

        'D': '-..',

        'E': '.',

        'F': '..-.',

        'G': '--.',

        'H': '....',

        'I': '..',

        'J': '.---',

        'K': '-.-',

        'L': '.-..',

        'M': '--',

        'N': '-.',

        'O': '---',

        'P': '.--.',

        'Q': '--.-',

        'R': '.-.',

        'S': '...',

        'T': '-',

        'U': '..-',

        'V': '...-',

        'W': '.--',

        'X': '-..-',

        'Y': '-.--',

        'Z': '--..',

        '_': '..--.-'}

ledPin=21

ledPin2=20

ledPin3=12

GPIO.setmode(GPIO.BCM)

GPIO.setup(ledPin,GPIO.OUT)

GPIO.setup(ledPin2,GPIO.OUT)

GPIO.setup(ledPin3,GPIO.OUT)

GPIO.setup(5, GPIO.OUT)
def dot():

	print "Dot"

	GPIO.output(ledPin,1)

        GPIO.output(5, True)

	time.sleep(0.2)

	GPIO.output(ledPin,0)

        GPIO.output(5, False)

	time.sleep(0.2)
def dash():

	print "Dash"

	GPIO.output(ledPin2,2)

        GPIO.output(5, True)

	time.sleep(0.5)

	GPIO.output(ledPin2,0)

        GPIO.output(5, False)

	time.sleep(0.2)
while True:

	input = raw_input('What would you like to send? ')

	for letter in input:

			for symbol in CODE[letter.upper()]:

				if symbol == '-':

					dash()

				elif symbol == '.':

					dot()

				else:

					GPIO.output(ledPin3,1)

					time.sleep(0.5)

					GPIO.output(ledPin3,0)

					print "Space"

time.sleep(0.5)

Posted later as i got distracted.

Related