Serial port input device

[David McFarlane]

J,

Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
really does like to take any and all questions at 
http://support.pstnet.com/e%2Dprime/support/login.asp , and they strive 
to respond to all requests in 24-48 hours -- this is pretty much their 
substitute for proper documentation, so make full use of it.  3) If you 
do get an answer from PST Web Support, please extend the courtesy of 
posting their reply back here for the sake of others.

That said, here is my take ...

Just to clarify, you actually have a completely different problem from 
Daniel -- Daniel has some unknown custom-made devices that he wants to 
get working through a serial port, whereas you simply have a standard 
serial mouse that already works on the machines.  Also, you most 
certainly did not use a SerialDevice when you added the PST Serial 
Response Box to E-Prime, you instead used the SRBox device.  But let's 
move on...

You neither need nor want to use the SerialDevice to use an ordinary 
serial mouse in E-Prime.  As long as the serial mouse already works 
within Windows as an ordinary mouse, you need do nothing more in EP than 
to add a Mouse device to the input mask of your stimulus object, and 
then use a response of 1 for left button and 2 for right (if you also 
want mouse coordinates then you will have to use some inline code).  The 
SerialDevice has nothing to do with the serial mouse.

Now a bit of unsolicited technical background:  E-Prime does not even 
know whether your mouse connects through a USB port, serial port, or any 
other oddball port.  It is the job of the operating system (in this 
case, Windows) to handle the mouse hardware and then make that data 
available to any other application as a generic mouse device.

-- David McFarlane, Professional Faultfinder


On Friday 20 Aug 2010 KiwiPG wrote:
> Hey David,
> 
> Sorry for emailing you directly! I thought I posted here orginally :)
> 
> I have this exact same problem right now..
> 
> We are in the process of switching our class computers from superlab
> to Eprime2. We used good Ol' cheap serial mice to record RTs in
> superlab with no problems. I was under the impression that with the
> new Eprime2 I can simply add a serial device which was the case when I
> added the PST response box to our lab computer. However, when I tried
> to add a serial device (aka serial mouse) for class projects and got
> the same results as Daniel. Is inline script the only way to fix
> this?  Really hope not...
> 
> J

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