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LangChain/LangGraphOther30 HN points2025-05-31

Have a LangChain agent draw pictures in the ROS 2 turtlesim

A robotics grad student built a LangChain agent that controls ROS 2's turtlesim simulator to draw pictures from text instructions.

Try it yourself

What you get

A learning project that connects an LLM agent to a robot simulator.

Tools

  • LangChain
  • ROS 2 turtlesim

Steps

  1. Install ROS 2 and turtlesim.
  2. Clone the repo and follow its setup.
  3. Ask the agent to draw something.

Proof / source

Open-source code Author's Show HN post and the GitHub repo.

Read the original source ↗ Discussion ↗

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