Re: TI-H: IR Link
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Re: TI-H: IR Link
Transistor...that way when it gets light, it goes high
get grant to confirm it though...i don't trust myself :>
-----Original Message-----
From: Robert Cicconetti <zarquon@mdo.net>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Monday, April 27, 1998 5:28 PM
Subject: Re: TI-H: IR Link
>
>Okay.. found page in digikey w/ 880 nm and 950-960 nm. That's about the
>largest frequency spread they have (near infrared; far infrared stuff is
>harder to find)Transistor type or photoresistor sensor?
>
>>
>>Ohh... I keep forgetting to do that... the ti-hardware window popps up
>>right after my electronics group, so I forget that its actually hard to
>>whip up something like this... ;)
>>
>>First find 2 leds that operate at different freqs.. Then find to
receivers
>>that operate at different freqs.. Good. Now get 2 of each of those...
:)
>>
>>I'll make schematics as soon as my IBM decides to work...
>>
>>Btw, if everyone says apple is at the bottom, and PC at the top...if your
>>at the top, you have no where to go but down... :P
>>
>>>Grant, did you ever finish that Discrete IR link, and if so, could you
>>>please release the schematics? Thanks
>>>
>>>- Jon Olson
>>>
>>>--
>>>"Nobody will ever need more than 640k RAM!" -- Bill Gates, 1981
>>>"Windows 95 needs at least 8 MB RAM." -- Bill Gates, 1996
>>>"Nobody will ever need Windows 95." -- logical conclusion
>>
>>