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morsecode.py
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morsecode.py
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import machine,time
wpm=15
CODE = {'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':'--..',
'0':'-----','1':'.----','2':'..---','3':'...--','4':'....-',
'5':'.....','6':'-....','7':'--...','8':'---..','9':'----.',
'.':'.-.-.-',
',':'--..--',
'?':'..--..',
'/':'--..-.',
'@':'.--.-.',
' ':' ',
}
def flash(led,t):
# led.low()
# time.sleep(t)
led.high()
time.sleep(t)
led.low()
return
def send(msg="SOS",pin=25,tdot = 1.2/wpm):
led = machine.Pin(pin,machine.Pin.OUT)
tdash = tdot * 3
tspace = tdot * 2
tword = tdot * 6
led.low()
for l in msg:
c = CODE.get(l.upper())
for e in c:
if e==".":
flash(led,tdot)
time.sleep(tdot)
if e=="-":
flash(led,tdash)
time.sleep(tdot)
if e==" ": time.sleep(tword)
time.sleep(tword)
led.low()