Smart Video Car FAQ
From Wiki
Q1: The servo spin 360 degrees, instead of the standard 180 degrees of rotation
Smart Video Car for Raspberry Pi kit has changed the different types of servo, it spin 360 degrees instead of standard 180 degrees of rotation.
You can operate like this to solve the issue:
Firstly assemble other parts of the car kit but don't assemble parts related to servo's shaft yet. After other parts are assembled properly, please connect the wires including wires of servos. Install software and then run cali_server.py. If it runs without errors, please try manually rotating the servo. Only if the servo can't be rotated, has it been fixed in 90 degrees.
Now, the user manual is updated, please refer to :Smart+Video+Car+for+Raspberry+Pi+2017.8.30.pdf
Dragit_FAQ