OT - Max232
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Posts: 46,084
Of topic but still relevant.
I've seen a circuit using the Max232 and brings all four lines (TX, rx, cts,
& ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector for easy
bread boarding. No the problem, I cannot find it. Anybody know a site
where that is located.
[noparse][[/noparse]Non-text portions of this message have been removed]
I've seen a circuit using the Max232 and brings all four lines (TX, rx, cts,
& ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector for easy
bread boarding. No the problem, I cannot find it. Anybody know a site
where that is located.
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
>Of topic but still relevant.
>
>I've seen a circuit using the Max232 and brings all four lines (TX, rx, cts,
>& ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector for easy
>bread boarding. No the problem, I cannot find it. Anybody know a site
>where that is located.
Ashley Roll make one version - I saw it on <www.piclist.com> . I'm sure
I've also seen others - somewhere. I've even made a version myself - but
goofed up and used the wrong sex of connector (male instead of female) -
those boards are now scrap.
dwayne
--
Dwayne Reid <dwayner@p...>
Trinity Electronics Systems Ltd Edmonton, AB, CANADA
(780) 489-3199 voice (780) 487-6397 fax
Celebrating 18 years of Engineering Innovation (1984 - 2002)
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processors -- I included a place for a DB9, but did not lay it out for a
dedicated MAX232 chip in order to leave more prototyping space. Does anyone
think this might be something cool to include?
Original Message
> >I've seen a circuit using the Max232 and brings all four lines (TX, rx,
cts,
> >& ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector for
easy
> >bread boarding. No the problem, I cannot find it. Anybody know a site
> >where that is located.
>
> Ashley Roll make one version - I saw it on <www.piclist.com> . I'm sure
> I've also seen others - somewhere. I've even made a version myself - but
> goofed up and used the wrong sex of connector (male instead of female) -
> those boards are now scrap.
problem is that the MAX235 is a big chip (24pins), but it does not require
any external components (except the decoupling cap across Vdd and Vss).
Ben Lennard
*ACSE, ACCE
*National Certificate in Electronic Engineering
*Diploma in Electronic and Software Engineering
"To the optimist, the glass is half full. To the pessimist, the glass is
half empty. To the engineer, the glass is twice as big as it needs to be."
No animals were harmed in the transmission of this email, although the
Dog next door is living on borrowed time, let me tell you! Those of you
with an overwhelming fear of the unknown will be gratified to learn that
there is no hidden message revealed by reading this warning backwards.
> From: Rodent <daweasel@s...>
> Reply-To: basicstamps@yahoogroups.com
> Date: Tue, 10 Dec 2002 17:33:47 -0600
> To: basicstamps@yahoogroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] OT - Max232
>
> I have been working on a prototyping board for Stamps and other
> processors -- I included a place for a DB9, but did not lay it out for a
> dedicated MAX232 chip in order to leave more prototyping space. Does anyone
> think this might be something cool to include?
>
>
Original Message
>
>>> I've seen a circuit using the Max232 and brings all four lines (TX, rx,
> cts,
>>> & ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector for
> easy
>>> bread boarding. No the problem, I cannot find it. Anybody know a site
>>> where that is located.
>>
>> Ashley Roll make one version - I saw it on <www.piclist.com> . I'm sure
>> I've also seen others - somewhere. I've even made a version myself - but
>> goofed up and used the wrong sex of connector (male instead of female) -
>> those boards are now scrap.
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
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>
processors and decided against the MAX232, but did leave room for the
DB-9 as suggested. I also included a reset switch and a regulated power
supply - to keep it all in one place. I did a fair bit of research and
did not see any requests for a MAX232, but being a prototype board gives
the flexibility for the user to add it at their convenience.
The boards can be seen at http://www.projectx.com and from there, select
"Project X Kits", and than "Proto-24 Board" or on eBay at
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4660&item=1924738
977
John - VE3SVE
Original Message
From: Rodent [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=oZqPezDFh7q8aSUq6pram_-Es5ey7zqqp1nr7sAOeRf60FdI8q01VDsDkxjQ7m6SzILos50SbHg88UUK]daweasel@s...[/url
Sent: Tuesday, December 10, 2002 6:34 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] OT - Max232
I have been working on a prototyping board for Stamps and other
processors -- I included a place for a DB9, but did not lay it out for a
dedicated MAX232 chip in order to leave more prototyping space. Does
anyone
think this might be something cool to include?
Original Message
> >I've seen a circuit using the Max232 and brings all four lines (TX,
rx,
cts,
> >& ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector
for
easy
> >bread boarding. No the problem, I cannot find it. Anybody know a
site
> >where that is located.
>
> Ashley Roll make one version - I saw it on <www.piclist.com> . I'm
sure
> I've also seen others - somewhere. I've even made a version myself -
but
> goofed up and used the wrong sex of connector (male instead of female)
-
> those boards are now scrap.
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
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http://docs.yahoo.com/info/terms/
Original Message
> I'd personally use a MAX235, then you can support all the RS232 lines.
Only
> problem is that the MAX235 is a big chip (24pins), but it does not require
> any external components (except the decoupling cap across Vdd and Vss).
regards,
Daniel
Original Message
From: "Sadler Porter" <porter.sadler@s...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, December 10, 2002 12:11 PM
Subject: [noparse][[/noparse]basicstamps] OT - Max232
> Of topic but still relevant.
>
> I've seen a circuit using the Max232 and brings all four lines (TX, rx,
cts,
> & ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector for
easy
> bread boarding. No the problem, I cannot find it. Anybody know a site
> where that is located.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
Al Williams
AWC
* Floating point A/D
http://www.al-williams.com/awce/pak9.htm
>
Original Message
> From: Sadler Porter [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Q_nLQXRYwpxtNlrr63nKWqNdiados00JH3Dc6gg8RbtRG7efSTJR38Ekolt86pFF7-WadCkW3NkWqzSkbEGFGTKG]porter.sadler@s...[/url
> Sent: Tuesday, December 10, 2002 11:11 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]JUNK] [noparse][[/noparse]basicstamps] OT - Max232
>
>
> Of topic but still relevant.
>
> I've seen a circuit using the Max232 and brings all four
> lines (TX, rx, cts, & ???) from a standard 9 pin d-sub to a
> 5 or 6 pint post connector for easy
> bread boarding. No the problem, I cannot find it. Anybody
> know a site
> where that is located.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
> Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
features. Damn -- it sure is cold at your house!
Original Message
> I actually did a design on a prototype board for 24-pin Stamp/BasicX
> processors and decided against the MAX232, but did leave room for the
> DB-9 as suggested. I also included a reset switch and a regulated power
> supply - to keep it all in one place. I did a fair bit of research and
> did not see any requests for a MAX232, but being a prototype board gives
> the flexibility for the user to add it at their convenience.
>
> The boards can be seen at http://www.projectx.com and from there, select
> "Project X Kits", and than "Proto-24 Board" or on eBay at
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4660&item=1924738
> 977
> I have been working on a prototyping board for Stamps and other
> processors -- I included a place for a DB9, but did not lay it out for a
> dedicated MAX232 chip in order to leave more prototyping space. Does
> anyone
> think this might be something cool to include?
Not only cool but essential. To save space, consider using a MAX233
with caps built in. Instead of using a DB9 on the board, a simple
stereo jack and cable sheath will provide necessary connections (2,3,5)
for Tx, Rx, Common. CCS sells a PIC prototyping board with two such
jacks on the board, and a cable with a stereo jack on one end and a DB9
Female on the other.
Dennis
Original Message
From: Rodent [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=nbG2zh90ynjFdeDzKZMMBjjFz_JxvGOhsPuQIeqrM6kaBLnjZa1c4L8k_r8c6dbm2WjhYOh7avKA9Q]daweasel@s...[/url
Sent: Tuesday, December 10, 2002 3:34 PM
To: basicstamps@yahoogroups.com
Subject: Re: [noparse][[/noparse]basicstamps] OT - Max232
I have been working on a prototyping board for Stamps and other
processors -- I included a place for a DB9, but did not lay it out for a
dedicated MAX232 chip in order to leave more prototyping space. Does
anyone think this might be something cool to include?
Original Message
> >I've seen a circuit using the Max232 and brings all four lines (TX,
> >rx,
cts,
> >& ???) from a standard 9 pin d-sub to a 5 or 6 pint post connector
> >for
easy
> >bread boarding. No the problem, I cannot find it. Anybody know a
site
> >where that is located.
>
> Ashley Roll make one version - I saw it on <www.piclist.com> . I'm
> sure I've also seen others - somewhere. I've even made a version
> myself - but goofed up and used the wrong sex of connector (male
> instead of female) - those boards are now scrap.
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
it). The 235 seems to be 24pin wide DIP only (ie - same as a BS2).
--
http://www.lennard.net.nz/
Ben Lennard, NCEE, Dip EE
Electronics R&D - Kiwi Made, Innovative Electronics.
Hm: +64 4 972 7567
Mb: +64 21 536 627
87 Spencer Street
Crofton Downs
Wellington
New Zealand
"To the optimist, the glass is half full. To the pessimist, the glass is
half empty. To the engineer, the glass is twice as big as it needs to be."
No animals were harmed in the transmission of this email, although the
Dog next door is living on borrowed time, let me tell you! Those of you
with an overwhelming fear of the unknown will be gratified to learn that
there is no hidden message revealed by reading this warning backwards.
> From: Rodent <daweasel@s...>
> Reply-To: basicstamps@yahoogroups.com
> Date: Tue, 10 Dec 2002 18:48:44 -0600
> To: basicstamps@yahoogroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] OT - Max232
>
> Is it on 0.300 or 0.600 lead spacing??
>
>
>
Original Message
>
>> I'd personally use a MAX235, then you can support all the RS232 lines.
> Only
>> problem is that the MAX235 is a big chip (24pins), but it does not require
>> any external components (except the decoupling cap across Vdd and Vss).
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and Body
> of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>