Search found 8 matches

by AAtef92
Tue Jan 29, 2019 12:46 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 385

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: 385

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 ground while it is stationary on the ground...
by AAtef92
Wed Jan 23, 2019 1:57 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 385

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: 385

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" function fro...
by AAtef92
Tue Jan 22, 2019 3:22 pm
Forum: General discussions
Topic: Sensor Calibration
Replies: 11
Views: 385

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: 385

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: 582

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: 167

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 questions are:...