kmk_temperature.py

import microcontroller
from kmk.keys import KC, make_key
from kmk.handlers.stock import passthrough
from kmk.handlers.sequences import send_string

def type_temp(*args, **kwargs):
    temp = microcontroller.cpu.temperature
    print(temp) #print to serial console
    keyboard.process_key(send_string(repr(temp)), True) #type it on keyboard
    keyboard.process_key(send_string(repr(temp)), False)

make_key(names=('TEMP',), on_press=type_temp, on_release=passthrough)

keyboard.keymap = [KC.TEMP]