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#!/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()
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