From: "PCS Electronics"
Subject: Re: RS232 newbie - in need of assistance!
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Date: Thu, 2 Jan 2003 21:06:45 +0100
NNTP-Posting-Date: Thu, 02 Jan 2003 21:06:45 MET
Organization: Slovenija OnLine - SiOL
Just a few pointers...
Well, I guess you'll be using some kind of a microcontroller to do this on
the "PCB", no?
If you've already been working with a certain type of uCPUs, like the PIC
or AVR, this is probably what you're going to look for. There's plenty of
sourse code available on the net!
Next, you'll need something like the MAX232 (relatively cheap and simple)
to interface the RS232 line to the microcontroller.
VB is probably the simplest method to do this on the PC side. Note that the
student version of VB won't let you use MSCOMM control, you'll need full
Armed with above data, go over to google and search.
Try this one as well, its cool!
Marko - PCS Electronics
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tel +386 31 318 236
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"Matt Foster" wrote in message
> I am an A-Level student looking to read computer science at university in
> the coming years.
> As a project I am trying to design a circuit that transmits data to the 9
> pin serial port (RS232) of a standard PC.
> As a basic start I am trying to make a circuit with 4 ptm switches, when I
> press switch 1 I would like to display "switch 1" or somesuch on the
> computer screen. The same for switch 2,3 and 4.
> I will be using VB and the MSCOMM control to access the serial port, and I
> forsee no problems with doing this. My hurdle, however, is sending the
> 'data' from the PCB to the serial port.
> I would be extremely appreciative of any help you could give me.
> Thank you very much for your time.
> Matt Foster