three PIR sensors, three servos 3001, three motors

I get this bluetooth suggestion instead of automatically, i get "Serialport/dev/tty.usbmodem641" not found...
I am using MacOSx and Arduino Uno. Any idea what that could be?
The other thing - my installation needs 9V for the sensors and motors, and the sevos need 5V. Is there a way to charge the two sides of the shield with different voltage?
// 1.04.
Now the serial port works, without any change on my side?!
Still don`t know if the 5V from the Arduino are charged also, when I plug 9V adapter. The motors obviously need more power, so that will be another source of power...