View Full Version : serial coms

09-17-2008, 02:19 PM

I have been looking round for a very simple way of reading and displaying an RS232 serial output and displaying the data string on a small LCD screen.

I have to admit have not been getting very far.

The best idea I can come up with is to use a basic stamp or PIC to grab the input and then send it to a small LCD.

Basically we have a 'black box' style data recorder that is only controllable via a pc. Data is output via 232 and at this time only readable with a pc. This is not good out in the field even with a laptop. So I need a small box with a serial input and a screen. Baud rates 4800 and data is an ASCII string approx 20 characters CR LF at intervals from 30 secs to 5 mins.

can anyone point me in the right dirction


Bruce Bates
09-17-2008, 02:52 PM
hydro22 -

Here is a link to a software datascope program which is trialware. It will do everything you have asked, and much more:

Look near the bottom of the page for Listen32.ZIP.


Bruce Bates

Involvement and committment can be best understood by looking at a plate of ham and eggs. The chicken was involved, but the pig was committed. ANON

09-17-2008, 10:19 PM
Hi, the BS2 and one of the Parallax LCD's would be an ideal way to go for a very reasonable cost. The Parallax products have great support and documentation with quick start example code. The BS2 can accept RS232 data and format it for display on an LCD. Here is a link to the 2 line 16 character display


Jeff T.

09-18-2008, 10:53 AM

Thanks for the pointer to the software.
Sadly I have got numerous serial monitoring and data logging s'wares, all of which require the use of my laptop in the field.
When I say field I mean field, usually middle of nowhere, rain beating down, wind blowing a hooly.
Not the best place for my laptop. So I am trying to downgrade to a very simple, basic, no frills, wysiwyg plug in and display unit that is so cheap that it wont matter if it gets dropped in a puddle.

Thanks again. and the Listen32 stuff looks quite good.

hydro (Graham)

09-18-2008, 10:56 AM
Ah Ha!!

Jeff T

Thank you for your time. You have verified what i was thinking. It will give me a reason to start learning the way of the BS2.

I shall research and then probably be back here with loads more questions


Hydro( graham )