Bitcraze Forums

Dear all,

I understand that current cf fw supports 8 anchors for TDoA, may I know if i could put in more anchors like 10~16 anchors to increase the positioning accuracy? How can i add more anchors to the lps?

Thanks

Dear All, I was trying to play around with TDoA with 6 anchors using ROS. I configured one crazyflie and launched dwm_loc_ekf_hover.launch, but it didnt give me UWB range readings from anchors when i try to echo the log_range out. I didnt see position of the drones also. May I know how to view raw T...

Thanks Arnaud! It really helps!

Dear all, I try to open serial port using picocom /dev/ttyACM0, but the console shows me endless looping of the following message: Interrogating anchor 0 Interrogating anchor 1 Interrogating anchor 2 Interrogating anchor 3 Interrogating anchor 4 Interrogating anchor 5 ... May I know how to resolve t...

Hi 4rzael and arnaud,

I am also interested in making crazyflie hover accurately using ROS with new non-linear controller. Can I just enable the new controller in make file and start the hover launchfile in ROS driver provided here?

https://github.com/bitcraze/lps-ros

Thanks!

Hi all,
Following the instruction here:
https://wiki.bitcraze.io/projects:lps:node

I have tried picocom /dev/ttyACM0 to access to my LPS node but it loops endless with this Interrogating anchor thing. May I know how to solve it? I have attached a screenshot of it.

Thanks!

Cat

Hi arnaud,

Thanks! It is working very well now

Hi arnaud,

Yes the LPS nodes are flashed with latest firmware. The kalman filter works very well with no TDMA slots. With TDMA i still unable to get range information. I suspect the bug is from crazyflie_server in the ROS package and it is unable to publish the ranges out.

Thanks!

Hi Arnaud,

Thanks for the link, however I am getting zero range readings with the new configuration (rostopic echo\crazyflie\log_ranges), and the LPS nodes are blinking normally. Do I need to do any changes to the LPS node firmware?

Thanks!

Dear friends,

I noticed that the new CF firmware has removed dwm1000.c file. May I know how to configure different slots for 4 tags(CF2) using new firmware?

Thank you!