[dorkbotnyc-blabber] Looking for the right off-the shelf component

[Lee von Kraus]

use 'nor gate' ICs like the IC 7402

description:
http://hyperphysics.phy-astr.gsu.edu/Hbase/Electronic/nor.html

where to buy:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=DM7402N-ND

-Lee



On Mon, Nov 24, 2008 at 11:07 AM, Alison Lewis <lewischicken at gmail.com>wrote:

> Hi all:
>
> I've been asked to hack into a sensor that has four contacts (it acts
> somewhat like a hand built joystick to control a moving image). Basically, I
> am looking for a simple circuit that can do logic to know if any of the four
> contacts are closed. If they are all open, then it should send out 2.5
> Volts. I can program a PIC to do this, but I was hoping there was an off the
> shelf solution out there somewhere. I was also thinking a timer could do the
> trick, but I am open to other suggestions if you have any.
>
> Thank You,
> Alison
>
>
> ........................................................................
> .........dorkbot: people doing strange things with electricity..........
> ..........................http://dorkbot.org............................
> ........................................................................
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