Guide in hardware control

[Mathan]

I am trying to learn basic hardware control with LabView. I want to control logical mouse PS/2 powered on and off individually.

I have a PC and Labview. Can I connect it directly to a USB port? I think I read where you can send a stream of 1's to a serial port to provide a constant voltage (like turning it on and off). what other hardware will I need (Except DAQ)?

Mathan

[Dennis_Knutson]

Don't understand what you are tyring to do. You can't control the power of a USB port, so your USB mouse is always going to be powered.

You mention a serial port. That's not the same thing at all as a USB port. If you have a serial mouse, you can connect that to a serial port. A regular mouse cannot be connected to a serial port because the logic levels are wrong. If you wanted to experiment, I suppose you could try connecting a mouse to a parallel port and try that. There's a shipping example with LabVIEW that shows one way to control the parallel port.

[Rimasaurus]

Hi Mathan,

To find the examples that Dennis mentioned, open LabVIEW and navigate to Help >> Find Examples.  Then search for "parallel", and you will find two examples: Parallel Port Read and Write Loop.vi and Parallel Port Additional Data Register Inputs.vi.  Also, in the Connectivity >> Input Device Control function palette, you will find some functions to control a mouse.

Regards,

Rima