This board makes it very easy to control Motors and Servos without any extra hardware as well as giving you the ability to switch your Raspberry Pi on and off and power it from AA batteries. See xxxx for further info on all its capabilities. This section is about controlling and using it with Scratch.
Servo control is done through variables Servo1 and Servo2 (or you can use Tilt or Pan instead).
The servo1 accepts values from -60 to +60 degrees (to avoid jamming issues if used as a tilt servo) and servo2 accepts -90 to 90
If Ultrasonics are connected to inputs 1 or 2 as per https://cymplecy.wordpress.com/2013/04/23/scratch-gpio-v2-add-on-modulesboards/ then they are reffered to as Ultra1 or Ultra2