CircuitPython script for the Raspberry Pi Pico that reads the CPU temperature and displays it in morse code.

pico_morse_temperature.py

# Simple CircuitPython script for the Raspberry Pi Pico that reads the CPU's
# temperature and displays it in morse code https://en.wikipedia.org/wiki/Morse_code

import board
import digitalio
import microcontroller
import time

convert_to_fahrenheit = True
dot = 0.5 # time length of a dot in morse


dash = dot * 3
space = dot
letter = dot * 3
word = dot * 7

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

morse_numbers = [
    [dash, dash, dash, dash, dash],  # 0
    [dot, dash, dash, dash],         # 1
    [dot, dot, dash, dash, dash],    # 2
    [dot, dot, dot, dash, dash],     # 3
    [dot, dot, dot, dot, dash],      # 4
    [dot, dot, dot, dot, dot],       # 5
    [dash, dot, dot, dot, dot],      # 6
    [dash, dash, dot, dot, dot],     # 7
    [dash, dash, dash, dot, dot],    # 8
    [dash, dash, dash, dash, dot],   # 9
    ]

def get_temp():
    t1 = microcontroller.cpu[0].temperature
    t2 = microcontroller.cpu[1].temperature
    temp = int(min(t1, t2)) # the cooler CPU is likely closest to ambient temp
    if convert_to_fahrenheit:
        temp = int(temp * (9 / 5) + 32)
    return temp
    
def convert_int_to_digitlist(number):
    '''takes a number and returns a list of the digits'''
    ''' 119 > [1, 1, 9] '''
    return [int(d) for d in str(number)]
    
while True:
    temp = get_temp()
    print(f'Temperature is {temp}')
    temp_digits = convert_int_to_digitlist(temp)
    for d in temp_digits:
        m = morse_numbers[d]
        print(f'{d}: {m}')
        for dot_or_dash in m:
            led.value = True
            time.sleep(dot_or_dash)
            led.value = False
            time.sleep(space)
        time.sleep(letter)
    time.sleep(word)

This is great! I've forked the code and made a few modifications.