random_omg.py

from sense_hat import SenseHat
import time
import random

sense = SenseHat()

r = random.randint(0,255)
sense.show_letter("O",text_colour=[r, 0, 0])
time.sleep(1)

r = random.randint(0,255)
sense.show_letter("M",text_colour=[0, 0, r])
time.sleep(1)

r = random.randint(0,255)
sense.show_letter("G",text_colour=[0, r, 0])
time.sleep(1)

sense.show_letter("!", text_colour=[0, 0, 0], back_colour=[255, 255, 255])
time.sleep(1)
sense.clear()