Blog

Long-form, hardware-tested technical writing on robotics software and hardware.

• ROS2 Jazzy vs Humble: What Actually Changed for Real Robots

  Use Jazzy for new projects in 2026 — better Nav2 defaults, faster rclpy serialization, and Gazebo Harmonic by default.

  By Andy Chen · 7/13/2026verified

• RPLIDAR A1 vs A2: Which One Should You Buy for a Budget SLAM Robot?

  The A1's 12m range and ~$99 price is still the right default for indoor SLAM in 2026 — here's when you actually need the A2/A3 instead.

  By Andy Chen · 7/12/2026verified

• Tuning a PID Controller for a Quadruped Robot

  Start with P only, increase until it oscillates, back off to 60%, then add D and only add I if load causes steady-state droop.

  By Andy Chen · 7/10/2026verified