morse.py

from gpiozero import Button
import time
from SMS import sms
import twitter

button = Button(21)  # GPIO Pin 40
dot_timeout = 0.205
dash_timeout = 1.15
current_letter = ""
message = ""
morse_message = ""
consumer_key = ""
consumer_secret = ""
access_token_key = ""
access_token_secret = ""
api = twitter.Api(consumer_key,
                  consumer_secret,
                  access_token_key,
                  access_token_secret)

morse = {
    ".-": "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", ".----": "1", "..---": "2", "...--": "3", "....-": "4",
    ".....": "5", "-....": "6", "--...": "7", "---..": "8", "----.": "9",
    "-----": "0", "-...-": "\n", ".-.-.-" : " "
}

print('Ready')

while True:

    # Wait for a keypress or until a letter has been completed
    # button.wait_for_press(dash_timeout)

    # If we've timed out and there's been previous keypresses, show the letter
    if button.is_pressed is False and len(current_letter) > 0:
        delay = time.time()
        if delay - end_of_letter_delay >= dash_timeout:
            print("\nMorse: " + current_letter)
            if current_letter in morse:
                print("Letter: " + morse[current_letter])
                smscheck = morse[current_letter]
                message += morse[current_letter]
                if current_letter != ".-.-.-":
                    if current_letter != "-...-":
                        morse_message += current_letter + " "
                print("Morse message: " + morse_message)
                print("Message: " + message)
                if smscheck == "\n":
                    combo_message = morse_message + "\n" + message
                    print(combo_message)
                    # sms(combo_message).send_SMS()
                    api.PostUpdate(combo_message + " #MorseCode #RaspberryPi")
                    message = ""
                    combo_message = ""
            else:
                print("Not recognised")
            current_letter = ""
    
    elif button.is_pressed:    
        # The key has been pressed, work out if it's a dot or a dash
        button_down_time = time.time()
        button.wait_for_release()
        button_up_time = time.time()
        button_down_length = button_up_time - button_down_time
    
        # Was it a dot or dash?
        if button_down_length > dot_timeout:
            print('-', end='', flush=True)
            current_letter += '-'
        else:
            print('.', end='', flush=True)
            current_letter += '.'
        end_of_letter_delay = time.time()
    time.sleep(0.05)