Using Jetson Nano to produce an Output after conducting Object Detection

Hello, I would like to know how I would be able to produce an output after my Jetson Nano has detected an Object. Also, how do I program the Jetson Nano to only detect vehicles using the given pre-trained networks such as those from SSD-Mobilenet-V2.

For example:

  1. How to configure the Jetson Nano to only detect cars and not everything else surrounding it that is shown from my raspberry pi camera, using SSD-mobilenet-V2

  2. After successfully detecting the car, how do I program the Nano to produce a ‘High’ (1) at its GPIO pins.
    (I am planning to detect this ‘high’ value using an Arduino which will be controlling my own RC car.)

I am new to the Jetson Nano and to AI and would really appreciate if I could get a detailed description on how I could get this done or any links that can help guide me through this. Thank you in advance.