morse.py

# Morse a text
# https://en.wikipedia.org/wiki/Morse_code

from gpiozero import LED
from time import sleep

led = LED(17)

# the higher this number, the slower the blinking
speed = 2

#text = 'sos'
text = 'hello world'

morsecode = {
  'h': '....',
  'e': '.',
  'l': '.-..',
  'o': '---',
  'w': '.--',
  'r': '.-.',
  'd': '-..',
  's': '...',
}

def blink(char):
    code = morsecode[char]
    for c in code:
        len = 0.1 if c == '.' else 0.3
        led.on()
        sleep(len * speed)
        led.off()
        sleep(0.1 * speed)
    sleep(0.2 * speed)


for c in text:
    if c == ' ':
        sleep(0.7 * speed)
    else:
        print("Binking", c)
        blink(c)