---

local leds = Ledbar.new(29)
local hue = 0
function callback(event)
end
while true do
local r, g, b = fromHSV(hue, 100, 25)
for i = 4, 28 do
leds:set(i, r, g, b)
end
hue = hue + 8
if hue >= 360 then
hue = hue - 360
end
sleep(0.1)
end