Search found 78 matches

by cafeciaojoe
Thu Mar 11, 2021 7:32 am
Forum: Support
Topic: flipping the motor direction in the firmware.
Replies: 5
Views: 366

Re: flipping the motor direction in the firmware.

that does get the drone off the ground, but the yaw is uncontrollable. it spins really fast then crashes.
by cafeciaojoe
Thu Mar 11, 2021 7:21 am
Forum: Lighthouse positioning system
Topic: Using v2 lighthouses facing upwards
Replies: 19
Views: 1577

Re: Using v2 lighthouses facing upwards

I tried again in our lab, clean install new drone. all works ok! So not sure what that was.

Just waiting now for my engineer friend to finalise the modifications to the

Code: Select all

class LighthouseBsGeoEstimator
before we move on to integrating it into the newest version of the Lighthouse Tab.

J
by cafeciaojoe
Thu Mar 11, 2021 4:54 am
Forum: Support
Topic: flipping the motor direction in the firmware.
Replies: 5
Views: 366

flipping the motor direction in the firmware.

Hi, I am looking to reverse the direction of the motors such that the motors can be mounted upside down, but the chassis remains the same. From this old post https://forum.bitcraze.io/viewtopic.php?p=16079#p16079 Tobias flipped the signs in the powerDistribution function definition. I gave it a quic...
by cafeciaojoe
Mon Mar 01, 2021 5:51 am
Forum: Lighthouse positioning system
Topic: Using v2 lighthouses facing upwards
Replies: 19
Views: 1577

Re: Using v2 lighthouses facing upwards

I can't even get the drone to fly with the latest pull, with unmodified firmware, client and cflib... So i will try to get it fly on a multi bs setup with hard coded geo/calib values first. Then we can talk about moving it over once the tab/lib and firmware is more stable and there are docs... Sould...
by cafeciaojoe
Thu Feb 25, 2021 5:47 am
Forum: Lighthouse positioning system
Topic: Using v2 lighthouses facing upwards
Replies: 19
Views: 1577

Re: Using v2 lighthouses facing upwards

Hi Kristoffer, I checked out the latest version of the lighthouse positioning tab today in response to Tobias's battery test function blog post. It looks like the calibration and geometry data are no longer hard coded into the firmware? How do you define the origin now? I assume there is some docume...
by cafeciaojoe
Sun Feb 21, 2021 11:31 pm
Forum: Lighthouse positioning system
Topic: Using v2 lighthouses facing upwards
Replies: 19
Views: 1577

Re: Using v2 lighthouses facing upwards

Hi Kristoffer,

Super exciting to have finally reached some precipice!

I have an engineer friend to help me from this point forward. He wants to know how does the rotor reference frame come into play.
is it something we need consider in this problem?

Cheers
J
by cafeciaojoe
Fri Feb 12, 2021 6:45 am
Forum: Lighthouse positioning system
Topic: Using v2 lighthouses facing upwards
Replies: 19
Views: 1577

Re: Using v2 lighthouses facing upwards

Hello! So I had a look at the script you posted (thank you) I did two things here. 1) Took 4 measurements in various places on the floor with the CF facing upwards, and 4 measurements in various places on a platform 1.2 m high. The script does seem to smooth out a lof of the jumping around I would n...
by cafeciaojoe
Fri Feb 12, 2021 6:26 am
Forum: Lighthouse positioning system
Topic: Voltage sag on old batteries resetting the LH deck
Replies: 4
Views: 623

Re: Voltage sag on old batteries resetting the LH deck

Great, yes I did see that just had not had time to test it out! will do it next week some time and let you know.

Thank you !! :)
by cafeciaojoe
Tue Feb 09, 2021 7:20 am
Forum: Lighthouse positioning system
Topic: Using v2 lighthouses facing upwards
Replies: 19
Views: 1577

Re: Using v2 lighthouses facing upwards

Hello. I have been refreshing my knowledge on rotation matricies and wanted to propose a better way to mesh these coordinates together. If we took three readings from get_bs_geometry.py in three seperate positions. we could chain the reference frames together right? (it has been a long time since I ...
by cafeciaojoe
Mon Feb 08, 2021 6:49 pm
Forum: Lighthouse positioning system
Topic: Voltage sag on old batteries resetting the LH deck
Replies: 4
Views: 623

Re: Voltage sag on old batteries resetting the LH deck

Ok great to hear! I would like to also add my two fixes to reduce the chances of this bug happening. 1) add the cut out voltage in the firmware. the critical sag voltage added in a previous post has been working well. somewhere between 2.65 and 2.7 catches most of the faults. 2) gradual take off of ...