Search found 8 matches

by AAtef92
Tue Jan 29, 2019 12:46 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 5253

Re: Sensor Calibration

I did the propeller check as you told me and I had a failure in one of the motors then also calibrated the LPS and now it worked fine.
I am so sorry for all the hustle and can't thank you enough for your support!
Thanks!
by AAtef92
Fri Jan 25, 2019 3:04 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 5253

Re: Sensor Calibration

1- I tried "autonomousSequence.py" and "motion_commander_demo.py" and both lead to painful wall crashing :/ 2- I reflashed the anchors and verified their locations, everything is fine except "z" reading is kinda off, as the position is esimated "0.3" above gro...
by AAtef92
Wed Jan 23, 2019 1:57 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 5253

Re: Sensor Calibration

yes I tried, and without LPS it is even more bad. I made sure that propellers are balanced and battery is tucked tight. 1- Can it be unbalanced motors? 2- how LPS can be miss-configured if I get approximate correct location on cf-client? 3- you mentioned controlling it with joystick may cause errors...
by AAtef92
Wed Jan 23, 2019 9:19 am
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 5253

Re: Sensor Calibration

1- the position is correct in the loco tab when it is stationary and even when i move the drone by hand to verify the tracking. 2- drifting occurs when I use the xbox controller or when i use the python script, but it worth noting that it often get stuck at "wait_for_position_estimator" fu...
by AAtef92
Tue Jan 22, 2019 3:22 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 5253

Re: Sensor Calibration

Thanks for your reply, i am using loco positioning system with 8 anchors, TDoA 2 mode. issuing it python commands to hover or go up a certain height is not working as intended if at all. The drone goes up and drift badly in a random direction. It bashed the wall a lot, but nothing broken, could that...
by AAtef92
Tue Jan 22, 2019 11:04 am
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 5253

Sensor Calibration

Hello Everyone, Starting the crazyflie on a flat surface gives wrong reading for the actual values of Roll/Pitch/yaw values. Roll: ranging from -0.2 to -0.7 Pitch: ranging from 0.5 to -0.5 Yaw: ranging from 0 to -0.02 Those are the actual readings without the crazyflie even leaves the ground yet, th...
by AAtef92
Fri Dec 07, 2018 1:26 pm
Forum: Loco Positioning System
Topic: LPS node cannot be updated
Replies: 6
Views: 3984

Re: LPS node cannot be updated

use "sudo" before the instruction, I had the same problem and was solved this way
--> sudo python3 -m lpstools

Hope that works for you
by AAtef92
Wed Dec 05, 2018 6:24 pm
Forum: Developer Discussions
Topic: PID data conversion
Replies: 1
Views: 1351

PID data conversion

Hello Everyone, I am trying to study crazyflie firmware and more specifically, the PID inner loop which is "Rate_PID", I understand it depends on the the angular velocities generated from the gyrometer after they are multiplied by the rotation matrix to have the world frame values. My ques...