$ dd iflag=fullblock if=/dev/ttyUSB0 of=fg3.bin
2354068+0 records in
2354068+0 records out
1205282816 bytes (1.2 GB) copied, 164295 s, 7.3 kB/s

$ ent fg3.bin
Entropy = 8.000000 bits per byte.

Optimum compression would reduce the size
of this 1205282816 byte file by 0 percent.

Chi square distribution for 1205282816 samples is 256.44, and randomly
would exceed this value 50.00 percent of the times.

Arithmetic mean value of data bytes is 127.4996 (127.5 = random).
Monte Carlo value for Pi is 3.141574206 (error 0.00 percent).
Serial correlation coefficient is 0.000041 (totally uncorrelated = 0.0).

$ dieharder -a -g 201 -f fg3.bin
#=============================================================================#
# dieharder version 3.31.1 Copyright 2003 Robert G. Brown #
#=============================================================================#
rng_name | filename |rands/second|
file_input_raw| fg3.bin| 3.49e+07 |
#=============================================================================#
test_name |ntup| tsamples |psamples| p-value |Assessment
#=============================================================================#
diehard_birthdays| 0| 100| 100|0.90870968| PASSED
diehard_operm5| 0| 1000000| 100|0.46700997| PASSED
diehard_rank_32x32| 0| 40000| 100|0.01694309| PASSED
# The file file_input_raw was rewound 1 times
diehard_rank_6x8| 0| 100000| 100|0.29885495| PASSED
# The file file_input_raw was rewound 1 times
diehard_bitstream| 0| 2097152| 100|0.91336368| PASSED
# The file file_input_raw was rewound 1 times
diehard_opso| 0| 2097152| 100|0.91289852| PASSED
# The file file_input_raw was rewound 2 times
diehard_oqso| 0| 2097152| 100|0.25079270| PASSED
# The file file_input_raw was rewound 2 times
diehard_dna| 0| 2097152| 100|0.42487063| PASSED
# The file file_input_raw was rewound 2 times
diehard_count_1s_str| 0| 256000| 100|0.27912791| PASSED
# The file file_input_raw was rewound 2 times
diehard_count_1s_byt| 0| 256000| 100|0.97448918| PASSED
# The file file_input_raw was rewound 2 times
diehard_parking_lot| 0| 12000| 100|0.95613825| PASSED
# The file file_input_raw was rewound 2 times
diehard_2dsphere| 2| 8000| 100|0.99459175| PASSED
# The file file_input_raw was rewound 2 times
diehard_3dsphere| 3| 4000| 100|0.26600670| PASSED
# The file file_input_raw was rewound 3 times
diehard_squeeze| 0| 100000| 100|0.18758536| PASSED
# The file file_input_raw was rewound 3 times
diehard_sums| 0| 100| 100|0.03494251| PASSED
# The file file_input_raw was rewound 3 times
diehard_runs| 0| 100000| 100|0.54279684| PASSED
diehard_runs| 0| 100000| 100|0.70096064| PASSED
# The file file_input_raw was rewound 4 times
diehard_craps| 0| 200000| 100|0.59604753| PASSED
diehard_craps| 0| 200000| 100|0.26269596| PASSED
# The file file_input_raw was rewound 10 times
marsaglia_tsang_gcd| 0| 10000000| 100|0.00253645| WEAK
marsaglia_tsang_gcd| 0| 10000000| 100|0.28746698| PASSED
# The file file_input_raw was rewound 10 times
sts_monobit| 1| 100000| 100|0.99741603| WEAK
# The file file_input_raw was rewound 10 times
sts_runs| 2| 100000| 100|0.90309956| PASSED
# The file file_input_raw was rewound 10 times
sts_serial| 1| 100000| 100|0.49975579| PASSED
sts_serial| 2| 100000| 100|0.70897960| PASSED
sts_serial| 3| 100000| 100|0.52811757| PASSED
sts_serial| 3| 100000| 100|0.97055607| PASSED
sts_serial| 4| 100000| 100|0.21258772| PASSED
sts_serial| 4| 100000| 100|0.66945966| PASSED
sts_serial| 5| 100000| 100|0.10972933| PASSED
sts_serial| 5| 100000| 100|0.40250274| PASSED
sts_serial| 6| 100000| 100|0.21360314| PASSED
sts_serial| 6| 100000| 100|0.24093021| PASSED
sts_serial| 7| 100000| 100|0.08196650| PASSED
sts_serial| 7| 100000| 100|0.36390181| PASSED
sts_serial| 8| 100000| 100|0.19684519| PASSED
sts_serial| 8| 100000| 100|0.90766156| PASSED
sts_serial| 9| 100000| 100|0.97287620| PASSED
sts_serial| 9| 100000| 100|0.27606294| PASSED
sts_serial| 10| 100000| 100|0.93829689| PASSED
sts_serial| 10| 100000| 100|0.88007252| PASSED
sts_serial| 11| 100000| 100|0.78634315| PASSED
sts_serial| 11| 100000| 100|0.12319810| PASSED
sts_serial| 12| 100000| 100|0.98520895| PASSED
sts_serial| 12| 100000| 100|0.28578593| PASSED
sts_serial| 13| 100000| 100|0.40284278| PASSED
sts_serial| 13| 100000| 100|0.67247545| PASSED
sts_serial| 14| 100000| 100|0.47317190| PASSED
sts_serial| 14| 100000| 100|0.51161780| PASSED
sts_serial| 15| 100000| 100|0.95716467| PASSED
sts_serial| 15| 100000| 100|0.62967656| PASSED
sts_serial| 16| 100000| 100|0.76756157| PASSED
sts_serial| 16| 100000| 100|0.29549944| PASSED
# The file file_input_raw was rewound 10 times
rgb_bitdist| 1| 100000| 100|0.93288574| PASSED
# The file file_input_raw was rewound 11 times
rgb_bitdist| 2| 100000| 100|0.18185730| PASSED
# The file file_input_raw was rewound 11 times
rgb_bitdist| 3| 100000| 100|0.03579555| PASSED
# The file file_input_raw was rewound 11 times
rgb_bitdist| 4| 100000| 100|0.73260995| PASSED
# The file file_input_raw was rewound 11 times
rgb_bitdist| 5| 100000| 100|0.19456527| PASSED
# The file file_input_raw was rewound 12 times
rgb_bitdist| 6| 100000| 100|0.72082127| PASSED
# The file file_input_raw was rewound 12 times
rgb_bitdist| 7| 100000| 100|0.76972807| PASSED
# The file file_input_raw was rewound 13 times
rgb_bitdist| 8| 100000| 100|0.24506852| PASSED
# The file file_input_raw was rewound 13 times
rgb_bitdist| 9| 100000| 100|0.23909422| PASSED
# The file file_input_raw was rewound 14 times
rgb_bitdist| 10| 100000| 100|0.66899639| PASSED
# The file file_input_raw was rewound 15 times
rgb_bitdist| 11| 100000| 100|0.92932901| PASSED
# The file file_input_raw was rewound 16 times
rgb_bitdist| 12| 100000| 100|0.96793007| PASSED
# The file file_input_raw was rewound 16 times
rgb_minimum_distance| 2| 10000| 1000|0.33825876| PASSED
# The file file_input_raw was rewound 16 times
rgb_minimum_distance| 3| 10000| 1000|0.55097035| PASSED
# The file file_input_raw was rewound 16 times
rgb_minimum_distance| 4| 10000| 1000|0.28030738| PASSED
# The file file_input_raw was rewound 16 times
rgb_minimum_distance| 5| 10000| 1000|0.09983686| PASSED
# The file file_input_raw was rewound 16 times
rgb_permutations| 2| 100000| 100|0.01103915| PASSED
# The file file_input_raw was rewound 16 times
rgb_permutations| 3| 100000| 100|0.73156903| PASSED
# The file file_input_raw was rewound 16 times
rgb_permutations| 4| 100000| 100|0.88234274| PASSED
# The file file_input_raw was rewound 17 times
rgb_permutations| 5| 100000| 100|0.03308068| PASSED
# The file file_input_raw was rewound 17 times
rgb_lagged_sum| 0| 1000000| 100|0.97632577| PASSED
# The file file_input_raw was rewound 18 times
rgb_lagged_sum| 1| 1000000| 100|0.45043816| PASSED
# The file file_input_raw was rewound 19 times
rgb_lagged_sum| 2| 1000000| 100|0.41560176| PASSED
# The file file_input_raw was rewound 20 times
rgb_lagged_sum| 3| 1000000| 100|0.34769388| PASSED
# The file file_input_raw was rewound 21 times
rgb_lagged_sum| 4| 1000000| 100|0.70932044| PASSED
# The file file_input_raw was rewound 23 times
rgb_lagged_sum| 5| 1000000| 100|0.48907479| PASSED
# The file file_input_raw was rewound 26 times
rgb_lagged_sum| 6| 1000000| 100|0.78459757| PASSED
# The file file_input_raw was rewound 28 times
rgb_lagged_sum| 7| 1000000| 100|0.04273405| PASSED
# The file file_input_raw was rewound 31 times
rgb_lagged_sum| 8| 1000000| 100|0.45727585| PASSED
# The file file_input_raw was rewound 35 times
rgb_lagged_sum| 9| 1000000| 100|0.91131328| PASSED
# The file file_input_raw was rewound 38 times
rgb_lagged_sum| 10| 1000000| 100|0.19562917| PASSED
# The file file_input_raw was rewound 42 times
rgb_lagged_sum| 11| 1000000| 100|0.44363691| PASSED
# The file file_input_raw was rewound 47 times
rgb_lagged_sum| 12| 1000000| 100|0.35024193| PASSED
# The file file_input_raw was rewound 51 times
rgb_lagged_sum| 13| 1000000| 100|0.91327603| PASSED
# The file file_input_raw was rewound 56 times
rgb_lagged_sum| 14| 1000000| 100|0.98423426| PASSED
# The file file_input_raw was rewound 62 times
rgb_lagged_sum| 15| 1000000| 100|0.56698369| PASSED
# The file file_input_raw was rewound 67 times
rgb_lagged_sum| 16| 1000000| 100|0.84643990| PASSED
# The file file_input_raw was rewound 73 times
rgb_lagged_sum| 17| 1000000| 100|0.94633092| PASSED
# The file file_input_raw was rewound 80 times
rgb_lagged_sum| 18| 1000000| 100|0.31737016| PASSED
# The file file_input_raw was rewound 86 times
rgb_lagged_sum| 19| 1000000| 100|0.48760019| PASSED
# The file file_input_raw was rewound 93 times
rgb_lagged_sum| 20| 1000000| 100|0.34555734| PASSED
# The file file_input_raw was rewound 100 times
rgb_lagged_sum| 21| 1000000| 100|0.62999188| PASSED
# The file file_input_raw was rewound 108 times
rgb_lagged_sum| 22| 1000000| 100|0.36631076| PASSED
# The file file_input_raw was rewound 116 times
rgb_lagged_sum| 23| 1000000| 100|0.13892644| PASSED
# The file file_input_raw was rewound 124 times
rgb_lagged_sum| 24| 1000000| 100|0.82148324| PASSED
# The file file_input_raw was rewound 133 times
rgb_lagged_sum| 25| 1000000| 100|0.60724566| PASSED
# The file file_input_raw was rewound 142 times
rgb_lagged_sum| 26| 1000000| 100|0.97991923| PASSED
# The file file_input_raw was rewound 151 times
rgb_lagged_sum| 27| 1000000| 100|0.42180981| PASSED
# The file file_input_raw was rewound 161 times
rgb_lagged_sum| 28| 1000000| 100|0.35201727| PASSED
# The file file_input_raw was rewound 171 times
rgb_lagged_sum| 29| 1000000| 100|0.68222019| PASSED
# The file file_input_raw was rewound 181 times
rgb_lagged_sum| 30| 1000000| 100|0.03315626| PASSED
# The file file_input_raw was rewound 192 times
rgb_lagged_sum| 31| 1000000| 100|0.17400783| PASSED
# The file file_input_raw was rewound 203 times
rgb_lagged_sum| 32| 1000000| 100|0.94430039| PASSED
# The file file_input_raw was rewound 203 times
rgb_kstest_test| 0| 10000| 1000|0.01596391| PASSED
# The file file_input_raw was rewound 203 times
dab_bytedistrib| 0| 51200000| 1|0.20610562| PASSED
# The file file_input_raw was rewound 203 times
dab_dct| 256| 50000| 1|0.34360271| PASSED
Preparing to run test 207. ntuple = 0
# The file file_input_raw was rewound 204 times
dab_filltree| 32| 15000000| 1|0.75472165| PASSED
dab_filltree| 32| 15000000| 1|0.36754172| PASSED
Preparing to run test 208. ntuple = 0
# The file file_input_raw was rewound 204 times
dab_filltree2| 0| 5000000| 1|0.82704145| PASSED
dab_filltree2| 1| 5000000| 1|0.30453363| PASSED
Preparing to run test 209. ntuple = 0
# The file file_input_raw was rewound 204 times
dab_monobit2| 12| 65000000| 1|0.30852395| PASSED