239d515fcc
changement d'usage des directions : - haut = point - bas = trait - gauche = corriger - droite = valider / espace
127 lines
3.6 KiB
Python
127 lines
3.6 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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"""
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test d'aide à l'écriture de message en morse
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sur raspberry pi + sense hat
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principe : saisie d'un message en morse via le joystick de la sense hat
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la grille LED permet d'avoir un retour / analyse de ce qui est saisi
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utilisation du joystick de la sense hat
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gauche = saisir un point
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droit = saisir un trait
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haut = valider (selon le contexte : lettre, mot, message), ajouter un espace
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bas = corriger / annuler la dernière entrée
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utilise la lib morse-talk pour le decodage / encodage
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$ pip install morse-talk
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"""
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from sense_hat import SenseHat, ACTION_PRESSED, ACTION_HELD, ACTION_RELEASED
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from signal import pause
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import time, morse_talk
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DOT = '.'
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DASH = '-'
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PAUSE = ' '
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END_CHAR = ' '
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END_WORD = ' '
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class MorseSenseHatKeyer:
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def __init__(self):
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self.sense = SenseHat()
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self.sense.stick.direction_up = self.pushed_up
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self.sense.stick.direction_down = self.pushed_down
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self.sense.stick.direction_left = self.pushed_left
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self.sense.stick.direction_right = self.pushed_right
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self.sense.stick.direction_any = self.refresh
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self.message_ascii = ''
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self.current_morse_char = ''
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def pushed_left(self, event):
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""" correction """
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# correction
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if event.action != ACTION_RELEASED:
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self.current_morse_char = ''
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def pushed_right(self, event):
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""" validation """
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# selon le cas : validation de la lettre, du mot etc
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if event.action != ACTION_RELEASED:
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if self.current_morse_char == '': # pas de lettre en cours, validation du mot, et affichage
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self.sense.show_message(self.message_ascii)
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elif self.current_morse_char != '': # validation de la lettre
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self.message_ascii += morse_talk.decode(self.current_morse_char)
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self.current_morse_char = ''
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def pushed_down(self, event):
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""" ajout trait """
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if event.action != ACTION_RELEASED:
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self.show_dash()
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self.current_morse_char += '-'
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self.show_char()
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def pushed_up(self, event):
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""" ajout point """
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if event.action != ACTION_RELEASED:
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self.show_dot()
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self.current_morse_char += '.'
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self.show_char()
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def show_dot(self, duration=0.1):
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self.sense.clear()
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for x in range(3, 5):
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for y in range(3, 5):
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self.sense.set_pixel(x, y, 255, 255, 255)
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time.sleep(duration)
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def show_dash(self, duration=0.1):
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self.sense.clear()
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for x in range(1, 7):
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for y in range(3, 5):
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self.sense.set_pixel(x, y, 255, 255, 255)
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time.sleep(duration)
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def refresh(self, event):
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pass
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# self.sense.clear()
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def show_char(self):
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char = morse_talk.decode(self.current_morse_char)
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self.sense.clear()
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self.sense.show_letter(char)
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def add_dot(self):
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pass
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def add_dash(self):
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pass
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def reset_char(self):
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""" annule le caractère courant """
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pass
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def validate_char(self):
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""" valide la lettre et ajoute un espace """
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pass
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def show_message(self):
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""" affiche le message courant """
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if __name__ == "__main__":
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try:
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keyer = MorseSenseHatKeyer()
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keyer.sense.show_message("morse://")
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# waiting for jostick events and directing them to keyer
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pause()
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except (KeyboardInterrupt, SystemExit) as err:
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sense = SenseHat()
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sense.show_message('out')
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sense.clear()
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