Re: LZ: Link Port


[Prev][Next][Index][Thread]

Re: LZ: Link Port



The ground wire is necessary so that both of the 85s "know" the 
difference between a "1" and a "0".  If the ground wire is not 
present, it becomes very difficult for the 85s to distinguish a "1" 
from a "0".
Ground is -; anything above ground is considered a +.  If the 85s 
don't have a common refrence point for ground, how are they supposed 
to know what a - or + is?
A common ground connection is always necessary when communicating 
between two electronic devices.


I'm having a little trouble putting this idea into words, but do you 
understand?  ;)
------
>>-> I am going to make a Radio Link for the TI-85 but I need to know 
is
>>-> what the red and white wire do. Does one send and one receive 
or
>>-> what?
>>
>>They both send and receive, they're just two IO lines.
>>
>>
>>
>
>On a side note, what does the ground wire do in
>conjunction with the other two?  You need a complete
>circuit, so do both go into the ground wire?...or
>something like that
>
>Just asking,
>Alan B.


____
~Keith
FFNP69C@PRODIGY.COM


References: