ira_laser_tools
PX4-Autopilot
ira_laser_tools | PX4-Autopilot | |
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1 | 26 | |
188 | 7,624 | |
0.0% | 1.7% | |
0.0 | 9.9 | |
over 1 year ago | 6 days ago | |
C++ | C++ | |
BSD 3-clause "New" or "Revised" License | BSD 3-clause "New" or "Revised" License |
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ira_laser_tools
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What are your questions and pain points in ROS2?
I found the ROS2 concept and design much more well established, especially for industrial. My problem on porting was more like when something available in ROS1 concept is not supported in the ROS2 concept. For example the infamous ira_laser_tools. This package basically merges all the scanning laser topics and publishes it as one so we can use it for AMCL / navigation (with the PointClouds too). The package will use ros::master api so it can manipulate the value alongside the data type format in which such concept is not supported in ROS2. In ROS1 we can take a list of topics with the data types in the format of std::string (topic name), std::string (data type). Laser topic parser in this package will process the data in a c++ way to get only the ones publishing sensor_msgs (scan data type). We can also call topics and the data type in ROS2, but in a format of std::map... I don't have sufficient c++ knowledge and reference to parse from the ROS2 api. I believe these kind of difficulties is also why nobody is working on it too.. In cases like these, how do you tackle the issue?
PX4-Autopilot
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Kalman Filter Tutorial: Kalman Filter from the Ground Up
They are widely used in narrow circles :)
Two of (arguably the best) open source RC aircraft flight controllers (ArduPilot and PX4) are using extended Kalman filters in their state estimators (essentially sensor fusion that provides attitude/position estimate):
https://github.com/ArduPilot/ardupilot/tree/master/libraries...
https://github.com/PX4/PX4-Autopilot/blob/main/src/modules/e...
I'm not that familiar with cleanflight/betaflight/inav scene to know what the FPV racer flight controllers use.
- Does anyone know about a good avionics related open source project for learning purposes?
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Power electronics and embedded systems
Actually, even the General Aviation pilots who actually manually manage their own load-shedding during a mission would quite like automated power distribution and management systems... and if you felt like taking on that sort of work as a hobby project to cut your teeth, I bet the guys at the (open-source) PX4 project would bite your hand off...
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DJI drone flight log viewer
As a flight pilot engineer you have to find a sweet spot and balance logging too much and too little. Writing logs to an SD card has huge costs that come with it, that's why you don't want to log too much. Logging too little and you can't debug issues later on properly.
PX4 also has lots of "topics" logged at around 1/10, e.g. hover thrust estimate every 100ms:
https://github.com/PX4/PX4-Autopilot/blob/main/src/modules/l...
- Has anyone programmed a drone?
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Help me choose a flight controller.
Okay, but nowadays most people talk about “Pixhawk” as an open-standard hardware platform and PX4 as the software. The source code is at https://github.com/PX4/PX4-Autopilot and they call themselves “PX4 Autopilot Software”.
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Best way to start getting involved with open source projects?
As an example, PX4 is a popular open source drone autopilot software: https://github.com/PX4/PX4-Autopilot
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PX4-Autopilot VS uas-catpilot - a user suggested alternative
2 projects | 16 Jan 2023
- PX4 Autpilot issue witch my diy aircraft
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Having trouble finding embedded engineers, should we even be looking for embedded engineers or more optimization experts?
I am working as a Remote Embedded Software developer for quite a while now and there is no obstacle in Remote work. If I am missing anything, parts are arriving in under the week. That said, I never had a better work-life balance in the last 10 years. Anyone who said Embedded is not possible to do remotely just check any open source flight controller project (in my case PX4).
What are some alternatives?
PlotJuggler - The Time Series Visualization Tool that you deserve.
ardupilot - ArduPlane, ArduCopter, ArduRover, ArduSub source
PCL - Point Cloud Library (PCL)
inav - INAV: Navigation-enabled flight control software
micro_ros_raspberrypi_pico_sdk - Raspberry Pi Pico (RP2040) and micro-ROS integration
ESP32 - DroneBridge for ESP32. A transparent short range wifi based telemetry (serial to WiFi) link. Support for MAVLink, MSP, LTM (iNAV) or any other protocol
tello-ros2 - ROS2 node for DJI Tello and Visual SLAM for mapping of indoor environments.
carla - Open-source simulator for autonomous driving research.
paparazzi - Paparazzi is a free and open-source hardware and software project for unmanned (air) vehicles. This is the main software repository.
linorobot - Autonomous ground robots (2WD, 4WD, Ackermann Steering, Mecanum Drive)
GAAS - GAAS is an open-source program designed for fully autonomous VTOL(a.k.a flying cars) and drones. GAAS stands for Generalized Autonomy Aviation System.