is it a stamp i need?
hi,
i'm trying to find a way to connect 60 or so simple on/off switches to a
computer so that i can use them as a kind of keyboard.
as far as i can see all i have to do is assign a number to each switch and send
that number in binary through RS232, right? i just need something to convert a
switch press to a digital signal.
the questions are:
can i use a basic stamp to do this?
if so, is it hard? (i don't have much time)
what i would really appreciate is some pointer to a little bit of code and
(gulp) a circuit diagram that would sort me out. since all you guys seem to have
moved onto making a stamp run the worlds economy and make a decent cup of tea,
i'm entering something that has already left me behind.
thanks in advance
garry
___________________________________________________________________
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i'm trying to find a way to connect 60 or so simple on/off switches to a
computer so that i can use them as a kind of keyboard.
as far as i can see all i have to do is assign a number to each switch and send
that number in binary through RS232, right? i just need something to convert a
switch press to a digital signal.
the questions are:
can i use a basic stamp to do this?
if so, is it hard? (i don't have much time)
what i would really appreciate is some pointer to a little bit of code and
(gulp) a circuit diagram that would sort me out. since all you guys seem to have
moved onto making a stamp run the worlds economy and make a decent cup of tea,
i'm entering something that has already left me behind.
thanks in advance
garry
___________________________________________________________________
Sent via Fetchmail - free email service at http://www.fetchmail.com
Comments
PAK-VI (http://www.al-williams.com/awce/pak6.htm)? Otherwise you'll have a
great big shift register or a lot of I/O expanders
(http://www.al-williams.com/awce/pak3.htm).
Regards,
Al Williams
AWC
*NEW: Interface to RS232: http://www.al-williams.com/awce/rs1.htm
>
Original Message
> From: garry hill [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=D9Q3xWweo3SD4zHAY3k_ZyfkF_MuavVeCQH0EJNy8Dz0dcBJD1vW9BZMwK30iz3wZzwejpkHh7gFyZA8JPvq]garry@m...[/url
> Sent: Monday, June 25, 2001 11:18 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] is it a stamp i need?
>
>
> hi,
>
> i'm trying to find a way to connect 60 or so simple on/off switches to a
> computer so that i can use them as a kind of keyboard.
>
> as far as i can see all i have to do is assign a number to each
> switch and send
> that number in binary through RS232, right? i just need something
> to convert a
> switch press to a digital signal.
>
> the questions are:
>
> can i use a basic stamp to do this?
> if so, is it hard? (i don't have much time)
>
> what i would really appreciate is some pointer to a little bit of
> code and
> (gulp) a circuit diagram that would sort me out. since all you
> guys seem to have
> moved onto making a stamp run the worlds economy and make a
> decent cup of tea,
> i'm entering something that has already left me behind.
>
> thanks in advance
>
> garry
>
>
> ___________________________________________________________________
> Sent via Fetchmail - free email service at http://www.fetchmail.com
>
>
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