Re: inferred?


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Re: inferred?



Why do you need two transmitters?  The Hp-48 has one transmitter and one
receiver diode.  It is not IRDA compliant, so maybe that is a route to
consider?
Mark P. Wilson
E-mail:  im1077@exmail.usma.edu



> ----------
> From:         Michael J. Malluck[SMTP:malluck@BELLSOUTH.NET]
> Reply To:     malluck@BELLSOUTH.NET
> Sent:         Monday, October 06, 1997 3:43 PM
> To:   CALC-TI@LISTS.PPP.TI.COM
> Subject:      Re: inferred?
>
> Hi All,
>         Building a inferred link (lonk...don't ask :) ) doesn't
> require much.
> Basicly you need a logic gate, a power supply, a diode, and a reciever
> per line. Your basic duplex pair. If voltage is coming out of the port
> the gate will send it to the diode. If voltage is coming in from the
> reciever send voltage to the ti. In this manner no special software is
> needed to run the link. The only hard part I foresee is the fact that
> you will need two transmiters of a different wavelenth and two filters
> for the recievers. Grrr! They're hard to find. I know. I've looked. I
> tried to do somthing simular last year for my the high school
> sciencefair. I may try again this year with the same idea. Anyone got
> a
> better sciencefair idea?
>                 -Michael
>


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