Extending example of sync using TTL input from I/O

[matiasandina]

I'm following the sync example in the documentation for bonsai using the I/O board. I have a 1 Hz pulse connected to the first socket of the I/O board. As shown in the pic below, I save the timestamps to csv and the TtlState into binary.

I'm reading the data in python using np.fromfile("ttl_path", dtype=np.int16)
Below I show a particular moment where the pulse on the first input should be high.

array([1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0]

I am a bit puzzled because I was expecting 8 channels instead of 4 channels (I was expecting a 1 followed by 7 zeros) . Any idea about this? When I visualize the input from the board in bonsai I do see 8 traces.
Could you extend the example a bit further in the docs ?

[ChucklesOnGitHub]

Hi Mati, I agree this tutorial could be expanded further. Can you send your data file to [email protected] so we can make sure everything is looking good in terms of the analog channels being recorded?