===== RGB LED strip =====
This example demostrates how a 5m RGB LED strip (based on LPD6803 chip) is controlled over UPER1 SPI.

==== Requirements: ====
  * Uper1 board
  * LPD6803 5 meter LED strip (or similar)
  * 12V power supply (for LED strip)
  * Connection wires

==== Code: ====
<code python>
from time import sleep
from IoTPy.pyuper.uper import UPER1
from IoTPy.things.led_strip import LedStrip


def shift(seq, n):
    n %= len(seq)
    return seq[n:] + seq[:n]

with UPER1() as board, board.SPI("SPI0") as spi, LedStrip(spi) as leds:
    colors = [0xFF0000, 0xFFFF00, 0x00FF00, 0x0000FF, 0xFF00FF]
    while True:
        leds.set_colors(colors*10)
        colors = shift(colors, 1)
        sleep(0.2)
</code>