[PD] PD to CV redux (Arduino)

derek holzer derek at x-i.net
Thu Oct 12 01:43:52 CEST 2006

Hi Martin, Chris,

and thanks for the enthusiastic replies!

martin.peach at sympatico.ca wrote:
>>> If I wanted to program an Arduino to send out Control Voltage for a
>>> modular synth, what would the resolution be? Would it be better than
>>> MIDI? Enough for microtones? Could it make quick modulations?
> The DAC716 is really good for this. It has 16-bit resolution so microtones can be quite finely tuned (10V/65536levels = 153microVolt per level). So you also need a clean power supply and careful circuit layout to avoid contaminating the control voltage with clock signals and switching noise from the rest of the circuit.
> It would use three or four pins of the arduino: clock, serial data, load dac, and maybe chip select if you have more than one.

So with one Arduino, how many chips could I control? In other words, how 
many different CV channels could I get out of it?

derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 149:
"Take a break"

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