test Adafruit CircuitPython 6.0.0 on 2020-11-16; Seeeduino XIAO with samd21g18

cq-circuit-py.py

import time
import board
from digitalio import DigitalInOut, Direction
 
led = DigitalInOut(board.D13)
led.direction = Direction.OUTPUT
SPEED=0.05
 
def dah():
    led.value = False
    time.sleep(SPEED*9.0)
    led.value = True
    time.sleep(SPEED*1.5)

def dit():
    led.value = False
    time.sleep(SPEED*2)
    led.value = True
    time.sleep(SPEED*2)

def eoc():
    led.value = True
    time.sleep(SPEED*6.0)

def eow():
    led.value = True
    time.sleep(SPEED*9.0)

while True:
    print("C")
    dah(); dit(); dah(); dit(); eoc(); eoc()
    print("Q")
    dah(); dah(); dit(); dah(); eow()