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'[PICLIST] [PIC] - Alternatives to MAX232 or equiv'
2002\06\06@123641 by Rex Byrns

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Does anyone know how to use transistors or other device to get rs232 levels.
I have 12 volts on the board.

I am at the end of the project and don't want to order just one part from
digikey.

My only other alternative is Radio Shack and haven't checked with them yet.

I haven't found an example of using a parallel port with bit bang method,
but I may just try that.

The communication wires need to go about 100' if possible.  Speed is not
critical.


Thanks

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2002\06\06@130922 by Gabriel Caffese

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part 1 1016 bytes content-type:text/plain; (decoded quoted-printable)

Rex,

  I use this configuration, and works fine for my projects.
  AND ITīS CHEPAER !!

   Gabriel.-


-----Mensaje original-----
De: pic microcontroller discussion list
[spam_OUTPICLISTTakeThisOuTspamMITVMA.MIT.EDU]En nombre de Rex Byrns
Enviado el: Jueves, 06 de Junio de 2002 13:36
Para: .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU
Asunto: [PIC] - Alternatives to MAX232 or equiv


Does anyone know how to use transistors or other device to get rs232 levels.
I have 12 volts on the board.

I am at the end of the project and don't want to order just one part from
digikey.

My only other alternative is Radio Shack and haven't checked with them yet.

I haven't found an example of using a parallel port with bit bang method,
but I may just try that.

The communication wires need to go about 100' if possible.  Speed is not
critical.


Thanks

--
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[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads



part 2 7607 bytes content-type:application/pdf; (decode)

part 3 154 bytes
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2002\06\06@134532 by Rex Byrns

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Excellent!

My Espanol is a little rusty.(and it was little before it rusted)

Does the paragraph on the right say that one could use +/- 9v but 5v usually
works fine?


> {Original Message removed}

2002\06\06@144025 by Dinho AeS

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Rex, actually, It means that it uses 0 to 5V instead of -9 and 9V

-----Original Message-----
From: pic microcontroller discussion list
[PICLISTspamKILLspamMITVMA.MIT.EDU] On Behalf Of Rex Byrns
Sent: Thursday, June 06, 2002 2:46 PM
To: .....PICLISTKILLspamspam.....MITVMA.MIT.EDU
Subject: Re: [PIC] - Alternatives to MAX232 or equiv


Excellent!

My Espanol is a little rusty.(and it was little before it rusted)

Does the paragraph on the right say that one could use +/- 9v but 5v
usually works fine?


{Quote hidden}

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