pi@raspberrypi:~ $ xxd </dev/ttyUSB0
00000000: fffb ffff ffff ffff eff7 6cef 0f77 0f7f  ..........l..w..
00000010: 7ff8 75ed 1f43 d7ff 1fc0 fee3 ffbb b7c0  ..u..C..........
00000020: 5bc0 09fc bbd7 d087 dffc ff0f 0303 e0d0  [...............
00000030: 4f6d 0577 1e80 8080 420f 010f 070b 0b03  Om.w....B.......
00000040: 4f57 4b00 0475 c783 0177 50c0 e00c ff6d  OWK..u...wP....m
00000050: 8040 407c f78f ddd0 0b80 8000 0000 33fc  .@@|..........3.
00000060: 40d7 5080 018c 01ff 0101 621e 5203 6900  @.P.......b.R.i.
00000070: 0000 0000 0013 f001 7707 0100 0108 02ff  ........w.......
00000080: 0101 621e f628 0b00 0000 0000 0000 0177  ..b..(.........w
00000090: 0781 81c7 8205 ff01 0101 0183 02ce 7570  ..............up
000000a0: 9fd9 f79c 5237 79c7 4651 080e 316c bd7f  ....R7y.FQ..1l..
000000b0: ecfd 9300 78cc 831b 9bf5 e588 9183 aff2  ....x...........
000000c0: 5395 bf0d 374a acdc 1f1c 428a c303 0101  S...7J....B.....
000000d0: 63ba c800 7605 0258 3099 6200 6200 7263  c...v..X0.b.b.rc
000000e0: 0201 7101 632b c500 1b1b 1b1b 1a00 9eb1  ..q.c+..........
000000f0: ffb6 fefe fece e6ce fefe ccf7 febd b6ce  ................
00000100: fe7e feff fef7 f4fe 7e6e f730 fccf 9f3f  .~......~n.0...?
00000110: f066 fa2e ecfc 0f2a c640 dfdf 14d8 ce07  .f.....*.@......
00000120: fffc 0707 0449 734b a0df 1ec0 c0c0 4628  .....IsK......F(
00000130: 0101 1f09 0749 534f 0004 77cf 8703 773f  .....ISO..w...w?
00000140: 0340 e01e ffd9 8020 b066 3e52 0fe9 8000  .@..... .f>R....
00000150: 8080 0000 13f0 0377 0701 40e0 1eff a062  .......w..@....b
00000160: 1e52 0369 0000 0000 0000 11f0 0377 0701  .R.i.........w..
00000170: 0001 0802 ff03 0162 1e52 0369 0000 0000  .......b.R.i....
00000180: 0000 0000 0177 0781 81c7 8205 ff03 0101  .....w..........
00000190: 0183 02ce 7570 9fd9 f79c 5237 79c7 4651  ....up....R7y.FQ
000001a0: 080e 316c bd7f ecfd 9300 78cc 831b 9bf5  ..1l......x.....
000001b0: e5c4 64b0 4d53 95bf 4393 8a8d f7c4 2429  ..d.MS..C.....$)
000001c0: c707 0303 63d7 f6fe cefe fe62 0072 6302  ....c......b.rc.