Running px4-ros2-interface-lib Tests Against PX4 SITL

Running px4-ros2-interface-lib Integration Tests Against PX4 SITL: A Deep Technical Journey

A detailed technical account of running px4-ros2-interface-lib integration tests against PX4 SITL — from discovering that the project’s CI never runs them, through three different simulator backends, five distinct failure modes, and the surprising DDS payload mismatch that blocked everything. Every dead end documented.

March 19, 2026 · 13 min · Pavel Guzenfeld

fiber-nav-sim -- PX4 + Gazebo VTOL Navigation Simulator

GPS-denied VTOL navigation simulator using fiber optic odometry and monocular vision fusion. PX4 SITL + Gazebo Harmonic + ROS 2 Jazzy. Sub-meter accuracy over 3.3km.

1 min · Pavel Guzenfeld