Okay, I see that my plans are somewhow unrealistic or time-wasting, so I just will leave like it is.
I just wanted to assure to get the maximum out of what is possible with our servos.
Regarding the pulse frequency, I referred to this table here, http://www.ronlund.com/rcheli/HELP_SERVO_PULSE.html, but perhaps they refer to some other frequency?
Regarding EEG: Yes, I am acquainted with EEG, I am actually a cognitive neuroscientist.
I do not want to build an eeg recording system, I want to real-time control a robotic hand based on neuronal oscillations observed in the eeg.
And of course, I do not want to update the servos 200 times a second (10 times a second would be already awesome).
In fact, we will have to conduct some frequency analysis of the eeg raw signal (mu-component), in order to receive the final amplitude values that then can be transformed into motor commands (so there will be other latencies as well).
I just wanted to assure that there won`t be any unnecessary delays between each new calculated amplitude value and the following servo movement. But I see, that it is probably much more worth to spent more time on reducing the other possible latencies (eeg-amplifier to Matlab, online eeg artefact correction, frequency analysis, (classifier), servo command)
Thank you.