jremington:
This won't power even one motor or servo.Budget 1 Ampere per servo. Post a link to the motors, or post the stall current from the data sheet. In addition to 1 A/servo, the power supply must also be able to supply the motor stall current, typically 5-10X the running current.
The motors are 6V 160mA each
The servo is an sg90 micro servoIf a motor or servo is also connected, it can ruin the Arduino, not just the pin. Don't do this; use a separate power supply for motors and the Arduino.
The Vin or RAW input voltage must be 7V or greater.
I'm using the connections from this tutorial, https://www.youtube.com/watch?v=dyjo_ggEtVU&t=475s
@13:28