Search found 15 matches
- Wed Aug 28, 2019 8:15 am
- Forum: Developer Discussions
- Topic: Crazyflie control and estimation loops frequency
- Replies: 0
- Views: 57874
Crazyflie control and estimation loops frequency
Hi everyone, I just have a quick question about the frequency of the loops running on CF, documentation is not really helpful on this topic :) . If my understanding is correct, the main loop is the stabilization loop, running on 1000Hz and coordinating between the estimator and controller. EKF estim...
- Thu May 09, 2019 8:27 am
- Forum: Developer Discussions
- Topic: Setpoint handling in Crazyflie firmware
- Replies: 7
- Views: 4423
Re: Setpoint handling in Crazyflie firmware
Yeah, that's what we thought.
Thank you for your help!
Thank you for your help!
- Wed May 08, 2019 1:06 pm
- Forum: Developer Discussions
- Topic: Setpoint handling in Crazyflie firmware
- Replies: 7
- Views: 4423
Re: Setpoint handling in Crazyflie firmware
Thank you Arnaud, adding these changes to crazyswarm server solved our problem. There is just one thing.. it seems to work with PID but not with Mellinger controller. Do you know does the implementation of the Mellinger controller allow zDistance type of setpoints (roll/pitch/yawrate/z_positon)?
- Fri May 03, 2019 11:08 am
- Forum: Developer Discussions
- Topic: Setpoint handling in Crazyflie firmware
- Replies: 7
- Views: 4423
Re: Setpoint handling in Crazyflie firmware
We have a similar question. We are using lighthouse positioning, ROS Kinetic and CrazySwarm ROS. We would like to write a publisher that publishes zDistance type of setpoints (roll/pitch/yawrate/z_positon). How do we accomplish this? What are the necessary firmware changes? Have you got an example o...
- Mon Feb 04, 2019 1:31 pm
- Forum: Loco Positioning System
- Topic: lps-ros swarm
- Replies: 0
- Views: 5035
lps-ros swarm
Hi everyone, I have a question regarding lps-ros, to be more exact flying swarm using dwm_loc_ekf_swarm_hover.launch . First of all I know about new crazyswarm release and I have tested it, it works, and congratulations on such a user friendly release. But for our application lps-ros is more conveni...
- Mon Nov 19, 2018 7:43 am
- Forum: Developer Discussions
- Topic: Publish roll/pitch/yaw references
- Replies: 0
- Views: 4585
Publish roll/pitch/yaw references
Hi everyone, I am fairly new to ROS and C++ so be gentle :D . I want to reach roll/pitch/yaw (reference) values and publish them in the node so i can bag them over CrazyRadio. I am using LPS, Crazyradio, CF2.0 and dwm_loc_ekf_hover launch file. If I am not mistaken, crazyflie_server receives positio...
- Sat Jul 07, 2018 11:56 am
- Forum: Autonomous flight
- Topic: CF 2.0 & LPS waypoint ROS example
- Replies: 6
- Views: 5503
Re: CF 2.0 & LPS waypoint ROS example
For waypoint following I recommend using the new high-level command mode with "goTo" commands, see an example here: https://github.com/whoenig/crazyflie_ros/blob/master/crazyflie_demo/scripts/test_high_level.py or here: https://github.com/USC-ACTLab/crazyswarm/blob/master/ros_ws/src/crazy...
- Fri Jul 06, 2018 8:17 am
- Forum: Autonomous flight
- Topic: CF 2.0 & LPS waypoint ROS example
- Replies: 6
- Views: 5503
Re: CF 2.0 & LPS waypoint ROS example
I have related question. If instead of position, I want to give CF roll or pitch reference (for a few seconds, and then return it to zero), while in hover, how do I do this? As soon as CF receives the roll or pitch reference, position controller responsible for remaining CF at hover will kick in and...
- Wed Jul 04, 2018 6:59 am
- Forum: Autonomous flight
- Topic: CF 2.0 & LPS waypoint ROS example
- Replies: 6
- Views: 5503
- Tue Jul 03, 2018 9:26 am
- Forum: Autonomous flight
- Topic: CF 2.0 & LPS waypoint ROS example
- Replies: 6
- Views: 5503
CF 2.0 & LPS waypoint ROS example
Hi everyone,
I am familiar with the python waypoint following script, and it works! I was wondering is there a similar example in ROS? I want to do it through ROS because I have to record flight data through bag.
Thanks!
I am familiar with the python waypoint following script, and it works! I was wondering is there a similar example in ROS? I want to do it through ROS because I have to record flight data through bag.
Thanks!