Note:
(1). "DMX512" includes UCS512, WS2821, TM512.
(2). "TM1812" includes P9883, TM1804, TM1809, UCS1903,
UCS1909, UCS1912, WS2811, WS2812, SM16703, SM16709,
SM16712, INK1003, LX1003.
Normally, if you choose "DMX512", Clock should be 250K, if you
choose "TM1812", clock should be "750K".
