first re-commit.

pigpio-master/EXAMPLES/Python/MORSE_CODE/morse_code.py

@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+
+import pigpio
+
+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':'-----'}
+
+GPIO=22
+
+MICROS=100000
+
+NONE=0
+
+DASH=3
+DOT=1
+
+GAP=1
+LETTER_GAP=3-GAP
+WORD_GAP=7-LETTER_GAP
+
+def transmit_string(pi, gpio, str):
+
+   pi.wave_clear() # start a new waveform
+
+   wf=[]
+
+   for C in str:
+      c=C.lower()
+      print(c)
+      if c in morse:
+         k = morse[c]
+         for x in k:
+
+            if x == '.':
+               wf.append(pigpio.pulse(1<<gpio, NONE, DOT * MICROS))
+            else:
+               wf.append(pigpio.pulse(1<<gpio, NONE, DASH * MICROS))
+
+            wf.append(pigpio.pulse(NONE, 1<<gpio, GAP * MICROS))
+
+         wf.append(pigpio.pulse(NONE, 1<<gpio, LETTER_GAP * MICROS))
+
+      elif c == ' ':
+         wf.append(pigpio.pulse(NONE, 1<<gpio, WORD_GAP * MICROS))
+
+   pi.wave_add_generic(wf)
+
+   pi.wave_tx_start()
+
+pi = pigpio.pi()
+
+pi.set_mode(GPIO, pigpio.OUTPUT)
+
+transmit_string(pi, GPIO, "Now is the winter of our discontent")
+
+while pi.wave_tx_busy():
+   pass
+
+transmit_string(pi, GPIO, "made glorious summer by this sun of York")
+
+while pi.wave_tx_busy():
+   pass
+
+pi.stop()
+