Re: Sending text via the serial port

From: Tim Wescott (tim_at_wescottnospamdesign.com)
Date: 12/17/04 

Date: Thu, 16 Dec 2004 16:50:46 -0800

Darren wrote:
> Tim Wescott <tim@wescottnospamdesign.com> wrote in
> news:10s1moefdq4bbe@corp.supernews.com:
>
>
>>A small microcontroller like an AVR, PIC, 8051, etc. and an LCD
>>module.
>> Parallax (http://www.parallax.com/) either has a Basic Stamp with an
>>LCD module or they have a stick-on LCD module for a Basic Stamp.
>>
>>
>
>
> OK, forgetting about the LCD screen for the time being, how easy/difficult
> would this be.to create, is the microcontroller the only bit required to
> send serial formatted data through the com port? Or does this need timers
> and other stuff between the comm and microcontroller.
>
> I suppose what I'm asking for is a diagram to show how to link it all
> together. I think I can program the chip to send the serial data.
>
> Thanks
>
> Darren

You should be able to generate the correct serial signal out of the
microprocessor, either because you're wise enough to choose one with a
UART or because you're clever enough to bit-bang the PIC. To go from
there to RS-232 you need a logic-to-232 converter such as the MAX-232 or
similar.

Perhaps you should look around on the web for projects that happen to
use PICs; there will be complete sections of schematics that you can copy. 

-- 
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

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