Search found 27 matches

by chuhao
Wed Jul 12, 2017 3:12 am
Forum: General discussions
Topic: Crazyradio connection problem
Replies: 8
Views: 2848

Crazyradio connection problem

Hi I meet problem to connect crazyradio with my PC. I installed crazyflie client on my Ubuntu 16.04. I start the client software, and cannot find crazyradio connected. client_connection.png Then I tried to check devices, lsusb It shows, Bus 002 Device 002: ID 8087:8000 Intel Corp. Bus 002 Device 001...
by chuhao
Tue Jul 11, 2017 4:07 pm
Forum: Bitcraze
Topic: crazyflie2.0 cannot enter DFU mode
Replies: 6
Views: 1965

crazyflie2.0 cannot enter DFU mode

Hi I was trying to flash firmware to crazyflie 2.0. When I plug micro usd to the drone, and check devices through lsusb It shows, Bus 003 Device 059: ID 0483:5740 STMicroelectronics STM32F407 Then, I make it enter DFU mode by press on/off button at start. The LED shows corrent, with two front LED bl...
by chuhao
Fri May 05, 2017 1:50 pm
Forum: Loco Positioning System
Topic: UWB anchor LED error and picocom not connected
Replies: 1
Views: 726

UWB anchor LED error and picocom not connected

Hi I have problem during flashing uwb anchor firmware. 1. LED error DWM controlled LED: RX,SFD,RXOK are keep blinking once power on. After entered DFU mode, DWM controlled LED are all turned off, including RX. After firmware flashed, anchor info showed as below, nodefalsu.png It says "anchor positio...
by chuhao
Thu May 04, 2017 4:27 pm
Forum: Loco Positioning System
Topic: Running loco positioning problems
Replies: 4
Views: 1000

Re: Running loco positioning problems

I have a basic idea where goes wrong with error i)
There isn't /crazyflie/base_link frame. So, there is error in RobotModel and Axes.

But I still didn't know how to create /crazyflie/base_link.
by chuhao
Thu May 04, 2017 3:23 pm
Forum: Loco Positioning System
Topic: Running loco positioning problems
Replies: 4
Views: 1000

Re: Running loco positioning problems

Hi Arnaud I tried flash firmware for crazyflie and uwb_anchor again. They are all flashed successful. Now the main problem is in question 4. Everytime I launch the lps-ros file, there are error showed in Rviz, rvizerror.png It looks like "crazyflie/base_link" is missing. I'm not sure where goes wron...
by chuhao
Tue May 02, 2017 11:57 am
Forum: Loco Positioning System
Topic: Running loco positioning problems
Replies: 4
Views: 1000

Running loco positioning problems

Hi As I met several problems during test autonomous fly, I summarize them here. 1. Place UWB deck at the bottom of crazyflie, otherwise it affects tele radio. webwxgetmsgimg (1).jpg I was placing it at drone top. It frequently met connection problem, that radio cannot connect to drone in the client ...
by chuhao
Tue May 02, 2017 11:20 am
Forum: General discussions
Topic: flash crazyradio firmware failed
Replies: 7
Views: 2241

Re: flash crazyradio firmware failed

do you have full address for doc "help/about/debug" ? I'll try to find it. Besides, I just temperarily solved it. Everytime I run "crazyflie_client", I run it in root mode. Also, I launch "lps_node_ros" is root mode. And it'll be fine. I think this problem is caused by root permission problem. Do yo...
by chuhao
Tue May 02, 2017 11:16 am
Forum: Loco Positioning System
Topic: Error flash crazyflie firmware with kalman config.mk
Replies: 5
Views: 1234

Re: Error flash crazyflie firmware with kalman config.mk

I saw there are topics to publish /cmd_vel and /goal. But I'm just worried about radio delays. If the cmd is transmitted from ground pc to drone, it requires a very robust tele channel.
by chuhao
Tue May 02, 2017 8:24 am
Forum: Loco Positioning System
Topic: Error flash crazyflie firmware with kalman config.mk
Replies: 5
Views: 1234

Re: Error flash crazyflie firmware with kalman config.mk

thanks, this part should be no problem.
Do you have wiki to introduce how to edit flying trajectory? I want to try different flying path.
by chuhao
Tue May 02, 2017 8:16 am
Forum: General discussions
Topic: flash crazyradio firmware failed
Replies: 7
Views: 2241

Re: flash crazyradio firmware failed

Hi Arnaud I solved the firmware flashing problem. Its been flashed successful. But it still cannot found crazyradio device. In crazyflie client, there is no radio option, radionotshow.png I turned on one crazeflie, it still not showing the radio option. Enter "dmesg" command, it shows, [ 4836.197739...