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Getting Started with NVIDIA Isaac Platform

Getting Started with NVIDIA Isaac Platform

Overview

The NVIDIA Isaac ecosystem provides tools for developing, simulating, testing, and deploying AI-powered robots.

This tutorial focuses on preparing a development environment and understanding the first steps before building a robot simulation.

Version note: NVIDIA robotics software changes frequently. Always use the currently supported versions listed in NVIDIA's official documentation rather than copying an old version number from a tutorial.

What You Will Learn

  • What the Isaac platform contains
  • How to prepare your development machine
  • How to check GPU and driver compatibility
  • How to install Isaac Sim
  • How to prepare ROS 2 integration
  • How to verify the environment

1. Prerequisites

Recommended knowledge:

  • Basic Linux command line
  • Python
  • ROS 2 fundamentals
  • Basic robotics concepts
  • GPU and driver basics

Hardware should have an NVIDIA GPU meeting the current Isaac Sim requirements.

2. Check Your Operating System

Open a terminal:

uname -a
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Check the distribution:

cat /etc/os-release
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Record the operating system version before installing robotics software.

3. Check the NVIDIA GPU

Run:

nvidia-smi
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You should see information about:

  • GPU model
  • Driver version
  • CUDA compatibility information
  • GPU memory
  • Running processes

If nvidia-smi does not work, resolve the NVIDIA driver installation before continuing.

4. Understand the Isaac Components

Before installing anything, identify the role of each component:

Isaac Sim
   ↓
Simulation

Isaac ROS
   ↓
ROS 2 accelerated robotics packages

ROS 2
   ↓
Robot communication and application framework

Jetson
   ↓
Edge deployment
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5. Install Isaac Sim

Use NVIDIA's official Isaac Sim installation instructions for the currently supported release.

The exact installation method may vary by release and platform.

After installation, launch Isaac Sim using the method documented for your selected release.

6. Verify Isaac Sim

When Isaac Sim starts successfully:

  1. Open the default application.
  2. Confirm the 3D viewport appears.
  3. Create or open a sample scene.
  4. Start simulation.
  5. Observe the simulation clock.
  6. Verify that the GPU is being used.

7. Prepare ROS 2

Install the ROS 2 distribution supported by your Isaac Sim / Isaac ROS version.

Verify ROS 2:

ros2 --help
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Check the environment:

printenv | grep ROS
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The important principle is to use a compatible combination of:

OS
+
NVIDIA Driver
+
Isaac Sim
+
ROS 2
+
Isaac ROS
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8. Test ROS 2

Open terminal 1:

ros2 run demo_nodes_cpp talker
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Open terminal 2:

ros2 run demo_nodes_py listener
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You should see messages flowing between the ROS 2 nodes.

9. Prepare a Workspace

Create a ROS 2 workspace:

mkdir -p ~/physical_ai_ws/src
cd ~/physical_ai_ws
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Build it:

colcon build
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Source it:

source install/setup.bash
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For convenience, you can add the source command to your shell configuration after confirming the workspace works.

10. Connect Isaac Sim and ROS 2

At a high level:

Isaac Sim
    ↓
ROS 2 Bridge
    ↓
ROS 2 Topics
    ↓
Robot Application
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The exact bridge configuration depends on the Isaac Sim release.

Typical data includes:

  • Camera images
  • Depth images
  • IMU data
  • Joint states
  • Odometry
  • TF
  • Velocity commands

11. Verify the Connection

Once the bridge is configured, inspect available topics:

ros2 topic list
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Inspect a topic:

ros2 topic echo /topic_name
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Check its publishing rate:

ros2 topic hz /topic_name
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Use the actual topic names shown by your running simulation.

12. Troubleshooting Checklist

If Isaac Sim fails to start:

  • Check GPU compatibility.
  • Check NVIDIA driver status.
  • Check system memory.
  • Review the current Isaac Sim requirements.
  • Check application logs.

If ROS 2 cannot see simulation topics:

  • Confirm ROS 2 is sourced.
  • Confirm the bridge is enabled.
  • Check ROS domain configuration.
  • Check network configuration.
  • Run ros2 topic list.

13. First Development Goal

Before building a complex robot, verify this minimal pipeline:

Isaac Sim
   ↓
Virtual Robot
   ↓
Sensor
   ↓
ROS 2 Topic
   ↓
ROS 2 Node
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Once this works, add perception and control.

Key Takeaways

Do not start with a large autonomous robot project.

First establish:

  1. GPU
  2. Isaac Sim
  3. ROS 2
  4. Workspace
  5. Isaac Sim ↔ ROS 2 communication

Next Tutorial

In the next tutorial, we will build a simple robot simulation in NVIDIA Isaac Sim.

Useful Links

Website: www.v-modal.com

SDK Flutter: https://github.com/v-modal/vmodal_sdk_flutter

SDK Android: https://github.com/v-modal/vmodal_sdk_android

Discord: https://discord.gg/K72z28KU

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