ajout quelques scripts de test + WIP morse

pour projet lumières dans la nuit, sense_morse.py

sense_morse.py

@@ -0,0 +1,104 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+"""
+test d'aide à l'écriture de message en morse
+sur raspberry pi + sense hat
+
+principe : saisie d'un message en morse via le joystick de la sense hat
+la grille LED permet d'avoir un retour / analyse de ce qui est saisi
+
+
+utilisation du joystick de la sense hat
+gauche = saisir un point
+droit = saisir un trait
+haut = valider (selon le contexte : lettre, mot, message), ajouter un espace
+bas = corriger / annuler la dernière entrée
+
+utilise la lib morse-talk pour le decodage / encodage
+$ pip install morse-talk
+"""
+
+from sense_hat import SenseHat, ACTION_PRESSED, ACTION_HELD, ACTION_RELEASED
+from signal import pause
+import time, morse_talk
+
+
+DOT = '.'
+DASH = '-'
+PAUSE = ' '
+END_CHAR = '   '
+END_WORD = '       '
+
+
+class MorseSenseHatKeyer:
+
+    def __init__(self):
+        self.sense = SenseHat()
+        # self.sense.stick.direction_up = pushed_up
+        # self.sense.stick.direction_down = pushed_down
+        self.sense.stick.direction_left = self.pushed_left
+        self.sense.stick.direction_right = self.pushed_right
+        self.sense.stick.direction_any = self.refresh
+        self.message_ascii = ''
+        self.current_morse_char = ''
+        self.sense.show_message("morse ready")
+
+    def pushed_left(self, event):
+        if event.action != ACTION_RELEASED:
+            self.show_dot()
+            self.current_morse_char += '.'
+            self.show_char()
+
+    def pushed_right(self, event):
+        if event.action != ACTION_RELEASED:
+            self.show_dash()
+            self.current_morse_char += '-'
+            self.show_char()
+
+    def pushed_down(self, event):
+        # correction
+        if event.action != ACTION_RELEASED:
+            self.current_morse_char = ''
+
+    def pushed_up(self, event):
+        # selon le cas : validation de la lettre, du mot etc
+        if event.action != ACTION_RELEASED:
+            if self.current_morse_char == '': # pas de lettre en cours, validation du mot, et affichage
+                self.sense.show_message(self.message_ascii)
+            elif self.current_morse_char != '': # validation de la lettre
+                self.message_ascii += morse_talk.decode(self.current_morse_char)
+                self.current_morse_char = ''
+
+    def show_dot(self, duration=0.1):
+        self.sense.clear()
+        for x in range(3, 5):
+            for y in range(3, 5):
+                self.sense.set_pixel(x, y, 255, 255, 255)
+        time.sleep(duration)
+
+    def show_dash(self, duration=0.1):
+        self.sense.clear()
+        for x in range(1, 7):
+            for y in range(3, 5):
+                self.sense.set_pixel(x, y, 255, 255, 255)
+        time.sleep(duration)
+
+    def refresh(self, event):
+        pass
+        # self.sense.clear()
+
+    def show_char(self):
+        char = morse_talk.decode(self.current_morse_char)
+        self.sense.clear()
+        self.sense.show_letter(char)
+
+
+if __name__ == "__main__":
+    try:
+        keyer = MorseSenseHatKeyer()
+        # waiting for jostick events and directing them to keyer
+        pause()
+    except (KeyboardInterrupt, SystemExit) as err:
+        sense = SenseHat()
+        sense.show_message('out')
+        sense.clear()