Re: [ts-7000] Using the DIO pins.

["Alvaro Aguirre" <>]

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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