Top 9 ua Open-Source Projects

ardupilot

72 9,871 10.0 C++

ArduPlane, ArduCopter, ArduRover, ArduSub source

Project mention: Reading Sensor Data From Flight Controller Mateksys F405-TE - Integrated IMU - No Documentation | /r/stm32f4 | 2023-12-07

PX4-Autopilot

26 7,624 9.9 C++

PX4 Autopilot Software

Project mention: Kalman Filter Tutorial: Kalman Filter from the Ground Up | news.ycombinator.com | 2023-10-14

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.

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
ODM

13 4,582 8.6 Python

A command line toolkit to generate maps, point clouds, 3D models and DEMs from drone, balloon or kite images. 📷

Project mention: Organizing OpenStreetMap Mapping Parties | news.ycombinator.com | 2024-04-12

qgroundcontrol

3 2,922 9.8 C++

Cross-platform ground control station for drones (Android, iOS, Mac OS, Linux, Windows)

Project mention: DJI Virtual Flight (iOS) has been broken for five months | news.ycombinator.com | 2023-09-09

For Disco you're in luck, there are some really decent ardupilot-based projects out there[1]. Plus, unlike the Bebop camera which is inaccessible via the shell (you can only use the Parrot SDK), the Disco camera can be commanded to stream/record with a few simple commands, and even bound to controller inputs.
A caveat with the controller: it needs to have custom firmware[2] to get it communicating with ardupilot, and to get the firmware onto the controller you need telnet/adb into it via SkyController→usb→ethernet→usb→Laptop adaptor(s).
For a ground control system (GCS), there's three to choose from: Mission Planner, APM Planner, and QGroundControl[3] (ignore the rest, use this one).
For configuring the drone, mission planner is pretty good... but you can also just use MavProxy[4] which is a fantastic commandline program that all the GCSes use in some way, and can even be installed in Termux/Android.
1: https://github.com/uavpal/disco4g/
2: https://github.com/ArduPilot/dema-rc/
3: https://github.com/mavlink/qgroundcontrol
4: https://github.com/ArduPilot/MAVProxy

paparazzi

1 1,496 9.3 C

Paparazzi is a free and open-source hardware and software project for unmanned (air) vehicles. This is the main software repository. (by paparazzi)
WebTools.bundle

47 1,290 0.0 Python

WebTools is a collection of tools for Plex Media Server. Like the Unsupported AppStore (UAS)
FreeTAKUAS

3 68 0.0 Java

DJI drone flying app with integrations for FreeTAKServer
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
OpenAthenaAndroid

1 43 9.0 Java

OpenAthena allows common drones to spot precise geodetic locations
CatPilot

5 34 6.0 C

CatPilot is a hardware and OS agnostic drone's autopilot software stack. It is designed for faster creation of scalable distributed control systems for mission-critical applications.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).