I made a ppg sensor and acquiring the data from it to my laptop via Matlab - Arduino Uno interface.
I had been changing the baud rate in the arduino code available from mathworks package and also the
corresponding matlab code. I made the following observation:
1200 6 2400 12 4800 24 9600 30 38400 30 115200 30
So what I observe is the saturation in number of samples/sec from 9600 and later.
Suggestions regarding this are requested.