Free2Move Bluetooth rs232 adaptor problem


O

onurdincer

HI everyone i got a problem with free2move rs232 bluetooth converter .I
bought this product in these days but couldnt make it work.I did
everything as datasheet says but there is no response from the
adaptor.When i insatlled the software and started it.It says choose a
port then i choose COM1 port and click ok button.But it returns with a
message "no free2move device has found" . I couldnt fix that problem.
one more thing, in datasheet it says pin 9 is Vcc + so i think an
external power supply doesnt required? cuz there is no power supplier
came with product but back side of converter it has a DC input...So
anyone can help me please...??
 
Ad

Advertisements

D

Dick Grier

Hi,

I have not used this particular adapter. However, the datasheet for it
says:

a.. External power can be supplied via D-SUB connector or via DC connector
Then, later:

a.. 1.2 Power supply
The serial port plug needs to be powered by an external voltage of 4.0 -
5.0V.

This mreans that it does need external power. Some adapters "vampire" power
from DTR and RTS... However, your adapter must be furnished external power.

Dick

--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See www.hardandsoftware.net for details and contact information.
 
P

Paul G. Tobey [eMVP]

Pin 9 is often used, instead of RI (ring indicator), to pass power from a
main system to a serial peripheral, too.

Paul T.
 
D

Dick Grier

Hi Paul,

I haven't seen this, so the fact that some might use pin-9 is good
information.

Dick

--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See www.hardandsoftware.net for details and contact information.
 
P

Paul G. Tobey [eMVP]

Our devices have a jumper-selectable +5V output to pin 9 of all of the
serial ports, at least on devices where a barcode scanner, scale, or data
reader of some sort might be sitting. There are a few other external
devices that I've seen for industrial applications (material tracking,
etc.), where the same thing is used.

Paul T.
 
D

Dick Grier

Hi Paul,

In fact, the OP's BT adapter uses Pin-9 just this way. So, it seems sorta
"standard." At least, as standard as these things ever are.

Dick

--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See www.hardandsoftware.net for details and contact information.
 
Ad

Advertisements

I

info

Try the adapter from Blueconsole. www.blueconsole.com

It can inline power (vampire power as someone described it) with only
50mW from DCD, CTS, and DSR - as well as support Pin 9.

The reality is that very few RS232 devices provide enough power on Pin
9 to power most Bluetooth Serial Adapters. Blueconsole is the
exception to this.

-Larry Cooke
 
Ad

Advertisements


Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top