# randomDots function ```py import time, random def randomDots(delay): pixels[random.randint(0, num_pixels-1)] = (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)) pixels.show() time.sleep(delay) while True: randomDots(0.1) ``` This function sets a random LED to a random colour. This section of code can be copy and pasted as an experiment. This function requires the NeoPixel library.