Search found 395 matches

by whoenig
Sat Jan 22, 2022 6:27 pm
Forum: AI-deck
Topic: WiFi Connectivity Issues
Replies: 11
Views: 17000

WiFi Connectivity Issues

We are using the new wifi streamer example (described in https://github.com/bitcraze/AIdeck_examples/tree/cf-link/GAP8/test_functionalities/wifi_jpeg_streamer), with a Crazyflie 2.1 and AI deck attached (no other decks). STM32, NINA, and GAP8 are flashed over JTAG using the provided instructions. We...
by whoenig
Fri Aug 13, 2021 8:22 am
Forum: Developer Discussions
Topic: Generate waypoints offline
Replies: 3
Views: 1375

Re: Generate waypoints offline

The Crazyflie has a high-level commander that can generate trajectories on-board if you use a goTo command (assumes zero velocity and acceleration for the goal waypoint). For simulation, you could use the Crazyswarm (https://github.com/USC-ACTLab/crazyswarm). The simulation does not require any ROS,...
by whoenig
Fri Aug 06, 2021 3:14 pm
Forum: Support
Topic: Can't create catkin workspace, no crazyflie driver
Replies: 3
Views: 1320

Re: Can't create catkin workspace, no crazyflie driver

Crazyswarm comes with a ROS workspace (and is not just a ROS package). Please follow the official installation instructions using build.sh. If you run into issues, you can start a new discussion at https://github.com/USC-ACTLab/crazyswarm/discussions.
by whoenig
Tue Jul 20, 2021 11:18 am
Forum: Lighthouse positioning system
Topic: LH2 Mounting on a Truss
Replies: 2
Views: 1574

Re: LH2 Mounting on a Truss

Thanks Arnaud!
by whoenig
Mon Jul 19, 2021 12:07 pm
Forum: Lighthouse positioning system
Topic: LH2 Mounting on a Truss
Replies: 2
Views: 1574

LH2 Mounting on a Truss

Does anybody have recommendations for mounting the LH2 basestations on a truss (rather than on the wall)? Specifically, I am using a Global Truss F34 with 50mm diameter tubes. I didn't find any information regarding that in the getting starting guide at https://www.bitcraze.io/documentation/tutorial...
by whoenig
Thu Jul 15, 2021 11:20 am
Forum: General discussions
Topic: Safety Padding Recommendations
Replies: 1
Views: 881

Safety Padding Recommendations

I am looking for safety padding for a lab that minimizes the risk of breaking quadrotors (CF 2.1, and Bolt-based custom drones) during a crash. I have used regular foam before with great success in terms of softness, but this poses an increased risk for fire (and smoke). Ideally, the padding should ...
by whoenig
Fri Jun 18, 2021 7:28 pm
Forum: Bitcraze
Topic: include physical crazyflie in simulation
Replies: 5
Views: 1989

Re: include physical crazyflie in simulation

What you describe is known as Mixed Reality, see https://whoenig.github.io/publications/2015_IROS_Hoenig.pdf. There is currently no built-in support for this in the Crazyswarm. You might be able to instantiate real and simulated Crazyflies in the Python layer (at https://github.com/USC-ACTLab/crazys...
by whoenig
Mon Jun 07, 2021 11:34 am
Forum: General discussions
Topic: The velocity of crazyflie
Replies: 6
Views: 2243

Re: The velocity of crazyflie

There is no need to write a custom node. All you need to do is to enable pose logging or to set up a custom log configuration.
by whoenig
Tue Apr 06, 2021 9:53 am
Forum: Autonomous flight
Topic: Random Behavior while hovering/flying autonoumously
Replies: 10
Views: 21282

Re: Random Behavior while hovering/flying autonoumously

From your plots, what is the problem with the unsuccessful flight? It looks like the hover height is not as high as it should be, but otherwise "normal"? It would also be interesting to plot the commands you send (roll, pitch, yaw, thrust), as sudden spikes there could hint to an issue wit...
by whoenig
Mon Apr 05, 2021 10:37 am
Forum: Autonomous flight
Topic: Random Behavior while hovering/flying autonoumously
Replies: 10
Views: 21282

Re: Random Behavior while hovering/flying autonoumously

Do you see the same problem when flying a single CF only? I had a brief look at your code and I noticed that this is not threadsafe. In order to exchange data, you should either use queues (https://docs.python.org/3/library/queue.html) or semaphores (https://docs.python.org/3/library/threading.html#...