.. note::

    Hello, welcome to the SunFounder Raspberry Pi & Arduino & ESP32 Enthusiasts Community on Facebook! Dive deeper into Raspberry Pi, Arduino, and ESP32 with fellow enthusiasts.

    **Why Join?**

    - **Expert Support**: Solve post-sale issues and technical challenges with help from our community and team.
    - **Learn & Share**: Exchange tips and tutorials to enhance your skills.
    - **Exclusive Previews**: Get early access to new product announcements and sneak peeks.
    - **Special Discounts**: Enjoy exclusive discounts on our newest products.
    - **Festive Promotions and Giveaways**: Take part in giveaways and holiday promotions.

    👉 Ready to explore and create with us? Click [|link_sf_facebook|] and join today!

Video A3: Calibrate the PiCar-X 
==================================

This third video in the series focuses on calibrating the PiCar-X and introducing the Robot HAT. The tutorial is divided into several key sections:

* **Greyscale Sensor Calibration**: Instructions on accessing and calibrating the greyscale sensor.
* **DC Motors and Servo Calibration**: Steps for calibrating the DC motors for direction and speed, as well as the steering and camera pan/tilt servos.
* **Script Automation at Startup**: How to set scripts to run automatically at the Raspberry Pi's startup.
* **Robot HAT Overview**: Detailed overview of the Robot HAT, including its features and functionalities.


This tutorial is crucial for those looking to fine-tune their PiCar-X and understand the technical aspects of the Robot HAT.

**Video**

.. raw:: html

    <iframe width="700" height="500" src="https://www.youtube.com/embed/Y7rbS6MdR-g?si=6Snx90ws06B2IPBZ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

**Related On-line Tutorials**

* :ref:`py_calibrate`