on a project im working on,converting an old animated telephone into a games console,everything is working apart from the statup sequence which just loops on forever(on the phone),The other option ive got at the minute is it does nothing unless I press a test switch on phone then it does its thing for 5 seconds and stops),on switching on console the usb port sends a stepped down 3v constant power supply to the phones animated circuitry which sets the phone off doing its thing,ideally I would like it to stop after 5 seconds and not operate again until console has been restarted,,im a total noob to this stuff at present so any ideas are welcome