In this “differentially-steered robot” design, the Arduino is configured to control two servos by making a second transcript of the Servo object. To start with you will need two micro servo motors.

For instance, the Serial Servo Raspberry Pi HAT offers multiple powering options, four Serial Servo connectors, four programmable buttons, an on/off switch, and a 1.14” TFT Display for status ...

In other words, the attached servo will move to its default position (but perhaps not exactly).Since Arduino Uno/Nano allows you to access 1024 memory slots that will subsist while it is powered off, ...

This could be an interesting one if you work with robotics, flagged by the Arduino team - a look at how to smooth the operation of a servo, to avoid jerking between positions. It's from the YouTuber ...