from GUIDEMO_Graph.c:111
static int _HeartBeat[] = {
2, 4, 6, 8, 10, 6, 2, 0, 0, 0,
-8, 16, 40, 64, 88, 58, 28, -2, -32, -30,
-20, -10, 0, 2, 2, 4, 4, 6, 6, 8,
8, 10, 12, 14, 16, 18, 20, 16, 12, 8,
4, 2, 2, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};