from picozero import RGBLED
from time import sleep

rgb = RGBLED(28, 27, 26)

while True:
   
    for n in range (255):
        r = n
        g = 255-n
        rgb.color = (r,g,0) # rojo
        sleep(0.01)
        
    for n in range (255):
        r = 255-n
        g = n
        rgb.color = (r,g,0) # rojo
        sleep(0.01)