Hi I want to prepare a virtual laser keyboard for my laptop using ultrasonic sensors or Infrared range finder sensors using the support of arduino board. Can anyone help me how to do this and how to integrate it with my system keyboard.

I have a micro innovations wireless keyboard and laser mouse model no kb1045lsr. The mouse is working correctly. But the keyboard will do nothing. I have changed and checked the batteries. I have went into the control panel and under the keyboard and it states that the device is working...

A friend of mine just bought a device that allows her to view everything her children are typing on the computer. It is suppose to plug into the usb port. The problem is that the mouse and keyboard seem to be connected to the same port.. if that makes sense... and when she plugs in the device it...

In Dell latitude D620

I am using to machines (PCs) with 2 keyboards and 2 mouses. Is there a way to have only one mouse and a key board as I have to software to be used at one time?