>I have a need to extend several PS2 devices keyboards and mice. >Does anyone out there know of any circuits or websites with info >I need to extend the length to approx 60-80 metres. Does the machine have a USB port ? Can the opsys handle USB keyboard and mouse? Because the easiest way to do this may be to get a USB pic and attach the KB and mouse to that. One of the example applications is to do this. Or use the USB example application as the basis for making a PS2 KB/Mouse -> serial -> PS2 link using a couple of 16F628 PIC's. But that sort of distance brings up the obvious query, what are you doing for the display? I suspect you may find at the end of the day you are better off using one of the remote control software packages. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu