Search found 62 matches

by Che.
Wed Jun 08, 2016 10:11 am
Forum: Developer Discussions
Topic: [Bug] Long log group names cause system crash
Replies: 2
Views: 2075

Re: [Bug] Long log group names cause system crash

Thanks for sharing this info!
Greets, Che
by Che.
Wed May 25, 2016 9:24 am
Forum: Developer Discussions
Topic: LPS: Positioning of the LPS-Nodes for best performance
Replies: 2
Views: 2110

Re: LPS: Positioning of the LPS-Nodes for best performance

Hi Wolfgang,

thanks for your quick answer. I will heed your tips in my new setup and let you know how it works.

Best,
Timo
by Che.
Mon May 23, 2016 2:56 pm
Forum: Developer Discussions
Topic: LPS: Positioning of the LPS-Nodes for best performance
Replies: 2
Views: 2110

LPS: Positioning of the LPS-Nodes for best performance

Hi, I am currently experimenting with the LPS for getting best performance out of it. The Dillution of Precision is my reference point. However I have some questions: What part of the system can I interpret as the transmitter, and what is the Receiver, i.e. to calculate the actual value of DOP (see ...
by Che.
Mon May 23, 2016 11:31 am
Forum: Developer Discussions
Topic: [SOLVED] Accessing various information through ROS
Replies: 8
Views: 6200

Re: Accessing various information through ROS

Hi Wolfgang,

controlling the topics from outside would be a nice feature. But the library is awesome already, thanks for that!

I'll keep this thread alive, but for now you have answered all my questions. :)

Greets,
Che.
by Che.
Fri May 20, 2016 6:13 pm
Forum: Developer Discussions
Topic: [SOLVED] Accessing various information through ROS
Replies: 8
Views: 6200

Re: Accessing various information through ROS

Hi Wolfgang, The only problem is that you need to use a global variable. I got everthing working so far, thanks again! The link got me to prefix the keyword 'global' when changing my defined variables in the callback. However it is important to ensure that prefixing only when changing the variables,...
by Che.
Thu May 19, 2016 4:17 pm
Forum: Developer Discussions
Topic: [SOLVED] Accessing various information through ROS
Replies: 8
Views: 6200

Re: Accessing various information through ROS

Hi Wolfgang, thanks for your reply. These hints are what I am looking for. * Rather than using raw IMU data, try stabilizer.{roll,pitch,yaw} logging variables. Those use the integrated filter running at 250Hz and will give you a much better estimate. To save bandwidth, you might need to disable the ...
by Che.
Wed May 18, 2016 4:17 pm
Forum: Developer Discussions
Topic: [SOLVED] Accessing various information through ROS
Replies: 8
Views: 6200

Re: Accessing various information through ROS

Hi Wolfgang and all interested readers, my plan is, to merge distance-measurement of a lidar with the 'x,y,z,roll,pitch,yaw'-data which I use to create a variable coordinate-transformation (tf). I followed your advice and wrote a launch file with custom log blocks. <?xml version="1.0"?> <l...
by Che.
Thu May 12, 2016 1:47 pm
Forum: Developer Discussions
Topic: [SOLVED] DWM1000 failure
Replies: 2
Views: 2204

Re: DWM1000 failure

Hi Arnaud,

I've just tested the DWM with our second CrazyFlie 2.0 and it works perfectly.
Thanks for your help, it seems like the other Flie is the problem, but I started another thread for that (for whom it may concern: viewtopic.php?f=6&t=2001).
by Che.
Thu May 12, 2016 11:56 am
Forum: Developer Discussions
Topic: Crazyflie 2.0 won't start anymore
Replies: 7
Views: 3978

Re: Crazyflie 2.0 won't start anymore

No, only one LED blinks. VCC is only 0.45 V.
by Che.
Tue May 10, 2016 3:18 pm
Forum: Developer Discussions
Topic: [SOLVED] Accessing various information through ROS
Replies: 8
Views: 6200

[SOLVED] Accessing various information through ROS

Hi, some of you know, that I am working on a project, where I use the crazyflie to build a 3D-Map. I am quite far progressed at the moment, my simulation already works. Now I only need to implement the sensor readings of the crazyflie into my ROS-Construct. Is there an API for all ros-related crazyf...