[PD] electro-mechanical piano (player piano) - Arduino, Solenoid Issue

[Epic Jefferson]

Charles:
Yeah, we're building custom drivers for the solenoids and we built a 30v
power supply as well.


On Thu, Jun 27, 2013 at 4:43 PM, Charles Goyard <cg at fsck.fr> wrote:

> Epic Jefferson wrote:
> > Alexandros and Roman:
> > Thanks, i'll check both of your suggestions. I'll let you know how it
> goes.
> >
> > I also just ordered a Practical Maker PWM shield for arduino UNO. 1
> shield
> > gives you 32 pwm pins and they're stackable, up to 6 without the need for
> > an external power supply.
> >
> http://www.practicalmaker.com/products/arduino-shields/pwm-shield-assembled
>
> Beware that you'll need PNP transistor for the power stage, or you'll
> get small bumps when the TLCs go BLANK each cycle.
>
>
>
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-- 
www.epicjefferson.com
www.avmachinists.org Puerto Rico based Art Collective/ Non-Profit Org
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