Archived from groups: alt.comp.periphs.mainboard.shuttle (
More info?)
Evert Meulie wrote:
> Jonathan wrote:
>
>> Evert Meulie wrote:
>>
>>> Hi everyone!
>>>
>>> From the SB81P manual: GPI header: 'Port JP1 can be used to connect
>>> special device.'
>>>
>>>
>>> Who can tell me more about this GPI header? What can it be used for?
>>>
>>>
>>> Regards,
>>> Evert Meulie
>>
>>
>>
>> Hi,
>> That's a GPIO (general purpose I/O) header. You can use it to
>> drive/read a single bit of data from an external source.
>>
>> By connecting some supporting electronics, you could use it to drive
>> an LED or relay, for example. Usually there's an IO address you can
>> read/write to for reading/setting this GPIO bit.
>>
>> Don't hook anything up to it without understanding what you are doing;
>> you could damage the mobo.
>>
>> good luck,
>> Jonathan
>
>
>
> Does Shuttle/anyone else make any usefull gadgets that can be hooked up
> to this header?
🙂
>
> Regards,
> Evert Meulie
Not sure. I think the manufacturers usually make their GPIO pins TTL
compatible, which makes interfacing really easy for do-it-yourselfers.
You can find basic TTL guidelines in many books, or even Radio Shack
used to carry some skinny little books for like $0.99/ea that would
introduce you to TTL (and other topics).
-Jonathan
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