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Skills

Robotics 3: Robot software

5 weeks · 2 milestones

ROS 2 nodes and a simulated robot that moves on command. Stage 3 of the Varsity Curriculum: Robotics. A simulation-only route counts at every step; free resources only.

Part of: Robotics · Proves for: Engineers, UG

Milestone map

Milestone map

2 milestones

Build a ROS 2 robot in simulation

2–4 weeks (about 8 hrs/week, est)

Build a ROS 2 package with at least three nodes (a sensor publisher, a controller and a teleoperation or goal node) driving a robot in Gazebo, Webots or MuJoCo. Keep it in one public repo and commit as you go. No hardware needed: this milestone is done in simulation.

Proof required

Link the public repo with the ROS 2 package, a launch file that starts it, and a screen recording of the simulated robot responding to commands.

What gets checked

  • It builds and launches from the README.
  • Nodes talk through topics or services you designed.
  • The robot in the simulator responds to commands.

Common mistakes

  • One big upload with no commit history.
  • Results the repo cannot reproduce.

Powstik Guide

A public repo with a ROS 2 package with at least three nodes (a sensor publisher, a controller and a teleoperation or goal node) driving a robot in Gazebo, Webots or MuJoCo.

Steps

  1. Make a public repo.
  2. Set up the simulator from its free docs.
  3. Build the smallest version that works, then measure it.
  4. Write a README: what it is, how to launch it, what the numbers show.
  5. Ask someone who knows robotics to check it.

Template

README
Stage 3: Robot software
What is here:
How to launch it:
Results:
Limits:

What gets sent back

  • No measurements.
  • Code that does not work from the README.
  • Copied code with no history.

Resources

Foundationstart here

What a verifier looks for

  • It builds and launches from the README.
  • Nodes talk through topics or services you designed.
  • The robot in the simulator responds to commands.
  • Open the repo: does the code produce what the recording shows?

You'll sign in first, then come straight back here.

Show it working to a person

1 week (about 4 hrs, est)

Show the robot (simulated, or real if you have one) following commands given live by someone else. Do it in person or on a live video call. Simulation-only route: if you have no hardware, a live run in the simulator counts.

Proof required

Name the person who watched and add the recording or your notes of what happened, including anything that failed.

What gets checked

  • Commands come from the other person.
  • The node graph is shown and explained.
  • One failure is shown and handled.

Common mistakes

  • A pre-recorded run passed off as live.
  • Cutting the failures.

Powstik Guide

A live demo to one person who knows robotics, with notes or a recording.

Steps

  1. Agree the test with the person first.
  2. Let them choose the conditions.
  3. Show it live and record what happened.
  4. Write down what failed and why.

Template

Demo notes
Who watched:
What they asked for:
What happened:
What failed:

What gets sent back

  • The person did not see it live.
  • No notes or recording.

Resources

What a verifier looks for

  • Commands come from the other person.
  • The node graph is shown and explained.
  • One failure is shown and handled.
  • Did you watch it happen live?

You'll sign in first, then come straight back here.