PX4-Autopilot
nuttx
| PX4-Autopilot | nuttx | |
|---|---|---|
| 26 | 11 | |
| 7,624 | 2,337 | |
| 1.7% | 2.3% | |
| 9.9 | 10.0 | |
| 4 days ago | 4 days ago | |
| C++ | C | |
| BSD 3-clause "New" or "Revised" License | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
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).
nuttx
- Xiaomi Vela IoT Platform is Being Open-Sourced Based on NuttX Real-time OS
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Integrating rustix on NuttX
Hi Rust experts, we are willing to integrate rustix on NuttX RTOS, the initial effort was done by rustix author: https://github.com/bytecodealliance/rustix/tree/nuttx but it hit the wall since we don't know the right way to integrate cargo with the old-school NuttX's Makefiles. Any help or suggestion is welcome. More about NuttX here: https://nuttx.apache.org and here: https://nuttx.apache.org/docs/latest/
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Embedded Systems Weekly #116
Open Source Autopilot for Drone Developers PX4 is an advanced and open source autopilot flight stack for drones. PX4 can flight completely autonomously for pre-programmed missions, or, obviously, it can help a pilot who remote-controls the drone. It runs on NuttX RTOS.
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Anyone know of exceptional open source RTOS C projects?
You should definitely have a look at NuttX.
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Read NuttX Sensor Data with Zig
https://gitlab.com/nuttx/NuttX/-/tree/master/drivers/sensors https://github.com/apache/incubator-nuttx/pull/2039
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Query: Alternatives to Zephyr?
Maybe Nuttx can be an alternative. Have a look: https://nuttx.apache.org/
- Intel energizes decades-old real-time Linux kernel project
- Apache NuttX – Mature, real-time embedded operating system (RTOS)
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Open source projects
Zephyr, RIOT, NuttX are all open source RTOSes happy about contributions
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How to contribute to open source or Linux kernel?
Microcontrollers are a good start. Boards are cheap and sensors are plentiful. You could get a yet unsupported board and port RIOT, Zephyr or NuttX.
What are some alternatives?
ardupilot - ArduPlane, ArduCopter, ArduRover, ArduSub source
zephyr - Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
inav - INAV: Navigation-enabled flight control software
FreeRTOS-Kernel - FreeRTOS kernel files only, submoduled into https://github.com/FreeRTOS/FreeRTOS and various other repos.
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
stm32-bootloader - Customizable Bootloader for STM32 microcontrollers. This example demonstrates how to perform in-application-programming of a firmware located on an external SD card with FAT32 file system.
tello-ros2 - ROS2 node for DJI Tello and Visual SLAM for mapping of indoor environments.
mbed-os - Arm Mbed OS is a platform operating system designed for the internet of things
paparazzi - Paparazzi is a free and open-source hardware and software project for unmanned (air) vehicles. This is the main software repository.
The-Open-Book
linorobot - Autonomous ground robots (2WD, 4WD, Ackermann Steering, Mecanum Drive)
TizenRT - TizenRT is a lightweight RTOS-based platform to support low-end IoT devices