Hi Alvaro, I appreciate the advise and the circuit schematics. I am
somewhat familiar with basic electronics. I had built a couple of
simple circuits way back when. And thats all I am limiting myself to
for now.
--- In "Alvaro Aguirre" <>
wrote:
>
> On the TS7xxx manuals, search the DIO section and there's the info
of max
> current source/sink of the pins. Drive the LED with 5ma using a DIO pin
> sinking current with a resistor in series with the LED, choose the
resistor
> considering the max voltage on DIO pin (3.3 volt), max current for
the LED
> (5 ma) and the dropout voltage of the diode (2 volt).
>
> 3.3=R*.005+2... R= 260 [ohm] app
>
> |
> DIO pin |---WW---|<|-----| 3.3
> |
>
> The DIO's has pull up resistors so you can put a switch direct to
the pin
>
> |
> DIO pin|-----/ -----|GND
> |
>
> But as I can guess you don't know any much of electronics... so you
have two
> options:
> -Google at electronics hobbies sites at your own risk
> -Get a friend who knows electronics (or hire one)
>
> IT'S VERY EASY TO SCREW UP YOUR WHOLE CARD IF YOU DON'T KNOW WHAT
YOU ARE
> DOING (EVEN WITH SOFTWARE) please take my advice.
>
> On 11/18/06, sipnj <> wrote:
> >
> > I need to do the following:
> >
> > Add pushbutton that toggles a DIO pin. Also display LED state on a
> > different DIO pin.
> >
> > Would you know of a schematic of what parts I need to connect the
> > pusbutton and what I need to drive an LED on the DIO?. Is there a
> > specification somewhere about this? Can I get the parts at Radio
Shack?
> >
> > Someone here posted a file with code on how to read/write these pins
> > so I will be using and modifying that code.
> >
> > Thanks,
> >
> >
> >
>
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