ROS2 Silent Sensor

Medium Incident Response 0% pass rate
#qos#lidar#laserscan#dds#reliability#nav-stack#incident-response

Practice the ROS2 Silent Sensor coding problem in Incident Response. Browser-based execution with automated grading — no local ROS install required. 0% of engineers pass this challenge.

⚠️ System Alert

LiDAR scan data not reaching navigation stack. Robot has been stationary for 4 minutes. Last known good: 09:14:32.

What you know

  • LiDAR hardware is on and publishing
  • Navigation stack is running
  • Robot refuses to move

What you don't know

  • Why the nav stack isn't receiving scan data
  • Whether the problem is in the driver, the topic, or the configuration

Your task

Diagnose and fix the issue. The system is yours to probe.

Incident Response format: There is no description of what's wrong. Probe the system, form a hypothesis, fix it.

Frequently asked questions

What is the ROS2 Silent Sensor practice problem?

It is a hands-on Incident Response challenge on SimuCode where you implement and run ROS2 code in the browser with runtime-verified tests.

How do I practice ROS2 Silent Sensor online?

Open this page, sign in, and solve the problem in the built-in IDE. Your solution is graded against real ROS2 execution checks.

What skills does ROS2 Silent Sensor test?

This Medium problem focuses on qos, lidar, laserscan skills used in robotics interviews and production systems.