Introduction to my Jetson based Robot – DonkeyJet

Introducing my ongoing robotics project, currently named DonkeyJet, inspired by the Donkey Car project. This mobile robot is built on an RC car frame and powered by Jetson Nano, providing a hands-on platform for practicing robotics knowledge. The goal is to continually enhance its capabilities while exploring various aspects of robotics technology. While I’m not certain about the name DonkeyJet, I invite you to follow me on this exciting journey of discovery as I document my progress and share insights with fellow enthusiasts.

Purpose

Hopefully, this project will give me tons of learning opportunities in different topics including but not limited to:

  • ROS 2
  • Embedded Linux
  • Localization 
  • Mapping
  • Planning
  • Control
  • …..
Without further ado, let me talk briefly about the hardware that I am going to work on.

Hardware

Currently the car is made of these components:

  • A 1/16 scale RC Car as chassis. I am using this one specifically, but there are many RC Cars that would work with this project.
    • It comes with a DC Motor for the throttle, a Servo for steering, ESC to control both of them and a battery.
  • NVIDIA Jetson Nano as the brain
  • Adafruit 16-Channel I2C Servo Driver based on PCA9685
  • Power bank to power the Jetson Nano
  • Intel RealSense Sensors, D435 and T265. I am still not sure if I am able to power them both via Jetson’s USB ports.
    • T265 has IMU (3-axis accelerometer and gyroscope) onboard.
  • 3D-printed parts to mount the hardware to the chassis. If you are interested in the 3D files or prints, let me know in the comments.

I needed to remove some parts of the RC Car first, including the cover and radio receiver, and we had to mount everything. The Donkey Car documentation describes it very well. I had to modify the 3D-printed parts to fit the Jetson and the Realsense sensors.

Here are some images of the current state of the DonkeyJet.

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