it may be a bit off topic, but I am trying to shutdown the vivitek D912HD via a USB to Serial cable (one one side USB, on the other side the 9pin female, when connecting the cable the computer installs a prolific usb to serial driver).
I am using the software Termite 3.2 for sending the commands ( http://www.compuphase.com/software_termite.htm )
which is a RS232 Terminal
I read on the web that the shutdown command is (ascii) "[~] [P] [F] [CR]"
So the Terminal software is configured with 9600 baud rate, parity check: none, data bit: 8, stop bit 1, flow control: none, append string with CR.
I then type in the command line "~PF" and click on send.
however that doees not work, nothing happens. Anyone any idea ?