sl-controls ca95489b1d feat: Nav2 SLAM integration with RPLIDAR + RealSense (Issue #422)
Complete autonomous navigation stack for SaltyBot:
- SLAM Toolbox: online_async 2D LIDAR SLAM from RPLIDAR A1M8
- RealSense D435i: depth → pointcloud → costmap obstacle layer
- Nav2 stack: controllers, planners, behavior server, lifecycle management
- DWB planner: tuned for 20km/h (5.5 m/s) max velocity operation
- VESC odometry bridge: motor telemetry → nav_msgs/Odometry
- Costmap integration: LIDAR + depth for global + local costmaps
- TF tree: complete setup with base_link→laser, camera_link, odom
- Goal interface: /navigate_to_pose action for autonomous goals

Configuration:
- slam_toolbox_params: loop closure, scan matching, fine/coarse search
- nav2_params: AMCL, controllers, planners, behavior trees, lifecycle
- Global costmap: static layer + LIDAR obstacle layer + inflation
- Local costmap: rolling window + LIDAR + RealSense depth + inflation
- DWB planner: 20 vx samples, 40 theta samples, 1.7s horizon

Nodes and launch files:
- vesc_odometry_bridge: integrates motor RPM to wheel odometry
- nav2_slam_bringup: main integrated launch entry point
- depth_to_costmap: RealSense depth processing pipeline
- odometry_bridge: VESC telemetry bridge

Hardware support:
- RPLIDAR A1M8: 5.5 Hz, 12m range, 360° omnidirectional
- RealSense D435i: 15 Hz RGB-D, 200 Hz IMU, depth range 5m
- VESC Flipsky FSESC 4.20: dual motor control via UART
- SaltyBot 2-wheel balancer: 0.35m radius, hoverboard motors

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-03-04 23:35:15 -05:00

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<?xml version="1.0"?>
<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="3">
<name>saltybot_nav2_slam</name>
<version>0.1.0</version>
<description>
Nav2 SLAM integration for SaltyBot autonomous navigation.
Combines SLAM Toolbox (RPLIDAR 2D SLAM), RealSense depth for obstacle avoidance,
VESC odometry, and DWB planner for autonomous navigation up to 20km/h.
</description>
<maintainer email="sl-controls@saltylab.local">sl-controls</maintainer>
<license>MIT</license>
<depend>rclpy</depend>
<depend>sensor_msgs</depend>
<depend>std_msgs</depend>
<depend>nav_msgs</depend>
<depend>geometry_msgs</depend>
<depend>tf2</depend>
<depend>tf2_ros</depend>
<exec_depend>nav2_bringup</exec_depend>
<exec_depend>slam_toolbox</exec_depend>
<exec_depend>rplidar_ros</exec_depend>
<exec_depend>realsense2_camera</exec_depend>
<exec_depend>depth_image_proc</exec_depend>
<exec_depend>pointcloud_to_laserscan</exec_depend>
<buildtool_depend>ament_python</buildtool_depend>
<test_depend>ament_copyright</test_depend>
<test_depend>ament_flake8</test_depend>
<test_depend>ament_pep257</test_depend>
<test_depend>python3-pytest</test_depend>
<export>
<build_type>ament_python</build_type>
</export>
</package>