mirror of https://github.com/joan2937/pigpio
73 lines
1.5 KiB
Python
73 lines
1.5 KiB
Python
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#!/usr/bin/env python
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import pigpio
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morse={
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'a':'.-' , 'b':'-...' , 'c':'-.-.' , 'd':'-..' , 'e':'.' ,
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'f':'..-.' , 'g':'--.' , 'h':'....' , 'i':'..' , 'j':'.---' ,
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'k':'-.-' , 'l':'.-..' , 'm':'--' , 'n':'-.' , 'o':'---' ,
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'p':'.--.' , 'q':'--.-' , 'r':'.-.' , 's':'...' , 't':'-' ,
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'u':'..-' , 'v':'...-' , 'w':'.--' , 'x':'-..-' , 'y':'-.--' ,
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'z':'--..' , '1':'.----', '2':'..---', '3':'...--', '4':'....-',
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'5':'.....', '6':'-....', '7':'--...', '8':'---..', '9':'----.',
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'0':'-----'}
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GPIO=22
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MICROS=100000
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NONE=0
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DASH=3
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DOT=1
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GAP=1
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LETTER_GAP=3-GAP
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WORD_GAP=7-LETTER_GAP
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def transmit_string(pi, gpio, str):
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pi.wave_clear() # start a new waveform
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wf=[]
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for C in str:
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c=C.lower()
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print(c)
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if c in morse:
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k = morse[c]
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for x in k:
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if x == '.':
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wf.append(pigpio.pulse(1<<gpio, NONE, DOT * MICROS))
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else:
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wf.append(pigpio.pulse(1<<gpio, NONE, DASH * MICROS))
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wf.append(pigpio.pulse(NONE, 1<<gpio, GAP * MICROS))
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wf.append(pigpio.pulse(NONE, 1<<gpio, LETTER_GAP * MICROS))
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elif c == ' ':
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wf.append(pigpio.pulse(NONE, 1<<gpio, WORD_GAP * MICROS))
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pi.wave_add_generic(wf)
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pi.wave_tx_start()
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pi = pigpio.pi()
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pi.set_mode(GPIO, pigpio.OUTPUT)
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transmit_string(pi, GPIO, "Now is the winter of our discontent")
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while pi.wave_tx_busy():
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pass
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transmit_string(pi, GPIO, "made glorious summer by this sun of York")
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while pi.wave_tx_busy():
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pass
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pi.stop()
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