Hi Rathin, just to let you know: The BBB ADC's can sample at 1.6 MHz. That is, if you multiplex the ADC on 8 inputs, each one of them can sample at 200kHz. I am not familiar with user-friendly libraries like libpruio, so I cannot tell you where they lose the time. But technically (e.g. by writing the assembler instructions), 200 kHz is definitely possible, so you could upgrade your project at a later moment without changing the hardware. The price to pay (at the moment) is a little more customized code. But seeing that people struggle already at 20kHz just hurts my eyes ;) Lenny
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