[PD] PD to CV redux (Arduino)

[Steffen]

On 11/10/2006, at 20.49, <martin.peach at sympatico.ca>  
<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.

Not to be rude, just noob, what's then the use of the Arduino? I  
mean, why use a Arduino with that chip, if the chip in itself does  
the trick; and what does the Arduino lack in order to do the wanted?

Thanks for bringing back the topic.

Best, Steffen