RS232

[AbhiSRV_123]

Hello Experts, 

i am working on an application that is triggered from a serial port event change ( DTR and DSR). When this event change is triggered my application catch that and take a screenshot of the desktop. 

i have developed it, what i need help with is to find a hardware that can emulate “Pin Change” event(DTR/DSR). Something that i can connect to my serial port and upon clicking a button it sends a change in event to my serial port.

i am open to buy a hardware as long as it can solve the purpose.

thanks again

abhi

[K C]

Hi,

Any USB serial port adapter will do if it has the handshake signals.

If you google for 'c232hd' you will find FTDI USB cables with wire-out. 

They are available for 3.3V and 5V.

Kees

[AbhiSRV_123]

Thanks Kees for your answer. I did look gor C232D cable as mentioned by you.

How will this connect to my desktop, will come in my device manager as a com port, and what I need to do in order to send DTRTSR changes,

thanks

[K C]

H,

Yes it will show up as a COM port.

You have to install the driver from FTDI

You can also find the LabVIEW examples and documentation at the FTDI site.

If you can't get it working you can always get back here.

Kees

[crossrulz]

You can use VISA to "assert" or "unassert" the lines with a VISA Property Node.