paxscreen

-- dimensions of the screen and side with the modem
-- works best if the screen has the same aspect ratio
-- as the images
width = 32
height = 18
modemside = "back"

-- how long each image is displayed before switching (in seconds)
delay = 10

-- URLs to the desired images
-- the images need to be the same size
-- or at least the same aspect ratio
url1 = "http://"
url2 = "http://"
url3 = "http://"

-- you can fiddle with these if the
-- transitions don't look smooth
speed = 5
steps = 10

----------------------------------------------------------------
os.load("lumiere")

img1 = lumiere.getImage(url1,width)
img2 = lumiere.getImage(url2,width)
img3 = lumiere.getImage(url3,width)

if (not img1) or (not img2) or (not img3) then
    print("Error loading images. Check your URLs or contact maintenance.")
    return
end

screen = lumiere.initScreen(width,height,modemside)
screen:setColor("0xFFFFFF")

while true do
    lumiere.fade(screen,img1,img2,steps,speed)
    sleep(delay)
    lumiere.fade(screen,img2,img3,steps,speed)
    sleep(delay)
    lumiere.fade(screen,img3,img1,steps,speed)
    sleep(delay)
end