
A sequence file is a series of byte pairs.
It controls eight, 16, 24 or 32 lights. Each light can be fully on, fully off or somewhere inbetween with 8 bit precision.
The first eight lights are set 0, the next eight set 1, etc.

The byte pairs mean:

second    first
MSB  LSB  MSB  LSB
00000000  00000000  * Turn off all lights
00000001  xxxxxxxx  * Delay for (x+1) milliseconds
00000010  xxxxxxxx  * Delay for (x+1)*4 milliseconds
00000011  xxxxxxxx  * Delay for (x+1)*16 milliseconds
000001yy  xxxxxxxx  * Set light set y to state x (1=on, 0=off)
000010yy  xxxxxxxx  * Turn off lights in light set y by x (1=turn off, 0=no change)
000011yy  xxxxxxxx  * Turn on  lights in light set y by x (1=turn on,  0=no change)
000100yy  yyyxxxxx  * Turn on  lights x and y
000101yy  yyyxxxxx  * Turn off lights x and y
000110yy  yyyxxxxx  * Turn on  light  x and turn off light y
000111yy  yyyxxxxx  * Invert   lights x and y
001yyyyy  xxxxxxxx    Set brightness of light y to x
010yyyyy  xxxxxxxx    Increase brightness of light y to full in (x+1) milliseconds
011yyyyy  xxxxxxxx    Decrease brightness of light y to zero in (x+1) milliseconds
100yyyyy  xxxxxxxx    Increase brightness of light y to full in (x+1)*4 milliseconds
101yyyyy  xxxxxxxx    Decrease brightness of light y to zero in (x+1)*4 milliseconds
110yyyyy  xxxxxxxx    Increase brightness of light y to full in (x+1)*16 milliseconds
111yyyyy  xxxxxxxx    Decrease brightness of light y to zero in (x+1)*16 milliseconds
