Search found 15 matches
- Mon Aug 03, 2020 5:48 am
- Forum: Developer Discussions
- Topic: Disabling deck in firmware
- Replies: 1
- Views: 857
Disabling deck in firmware
I'm trying to disable the flow deck v2 in the firmware, instead of physically removing it from the Crazyflie (it doesn't seem to want to come off, and I don't want to accidentally break it), and was wondering what the best approach to doing this would be. What I did try was to simply comment out the...
- Sun Aug 02, 2020 11:09 pm
- Forum: Developer Discussions
- Topic: On-board velocity estimation using only gyro and accelerometer
- Replies: 1
- Views: 822
On-board velocity estimation using only gyro and accelerometer
I noticed that the stateEstimator() function in stabilizer.c is able to output x,y,z linear velocity estimates, and was wondering how accurate or noisy such estimates are. I had always thought that trying to use accelerometer data to estimate velocities, even when using an accurate dynamic model in ...
- Sun Aug 02, 2020 10:41 pm
- Forum: Developer Discussions
- Topic: Crazyflie 2 body frame of reference
- Replies: 2
- Views: 1980
Re: Crazyflie 2 body frame of reference
Thanks Kimberly, this clears up a lot of things!
- Wed Jul 29, 2020 5:41 am
- Forum: Developer Discussions
- Topic: Crazyflie 2 body frame of reference
- Replies: 2
- Views: 1980
Crazyflie 2 body frame of reference
I had assumed that the Crazyflie's body frame followed a standard right-hand rule coordinate system, with the positive x-axis pointing forward along the CF's longitudinal axis, the y-axis pointing left along the CF's lateral axis, and the z-axis pointing up, similar to the image below: cf_body_frame...
- Sun Jul 26, 2020 6:34 pm
- Forum: Developer Discussions
- Topic: Writing custom on-board controller in firmware
- Replies: 5
- Views: 2531
Re: Writing custom on-board controller in firmware
Thanks Kimberly, appreciate the detailed explanations. I had some more time to work on the on-board controller this weekend, and since I'll be using a gamepad to control the Crazyflie via the cfclient I wanted to ask if you know which parts of the firmware deal with taking the gamepad's inputs, and ...
- Sun Jul 19, 2020 3:47 am
- Forum: Support
- Topic: Preventing props from coming off during flight
- Replies: 4
- Views: 2324
Preventing props from coming off during flight
I recently bought a gamepad and am now able to use the Crazyflie's altitude-keeping functionality which is great. However, almost every flight ends up with a prop coming off during flight, which is hugely frustrating, especially since I'm not doing any aggressive maneuvers, and am simply flying arou...
- Mon Jul 13, 2020 1:59 am
- Forum: Support
- Topic: Crazyflie not charging
- Replies: 9
- Views: 3332
Re: Crazyflie not charging
Thanks Tobias, I got some time to mess with the Crazyflie this weekend and flashed the new firmware, and the charging issue has gone away. Regarding the propeller replacement program, that'd be great. Also, a bit off topic, but are there any plans of having the addon decks disabled while charging to...
- Sun Jul 05, 2020 11:24 pm
- Forum: Developer Discussions
- Topic: Writing custom on-board controller in firmware
- Replies: 5
- Views: 2531
Re: Writing custom on-board controller in firmware
Thanks for those links Kimberly, very useful. The INDI controller, and similarly the Mellinger controller, look like they use the same control output format as the default PID controller, where their output is given by control->thrust , control->roll , control->pitch , and control->yaw , which is th...
- Sun Jul 05, 2020 9:31 pm
- Forum: Developer Discussions
- Topic: Use of BLAS, LAPACK, ATLAS in Crazyflie Firmware?
- Replies: 1
- Views: 1052
Use of BLAS, LAPACK, ATLAS in Crazyflie Firmware?
I've been looking at the Crazyflie firmware (https://github.com/bitcraze/crazyflie-firmware) and noticed that there doesn't seem to be a way to deal with matrix/vector operations beyond 3 dimensions (most of the matrix/vector operations seem to be contained in math3d.h). As such I wanted to ask why ...
- Sun Jun 14, 2020 5:39 pm
- Forum: Support
- Topic: Crazyflie not charging
- Replies: 9
- Views: 3332
Re: Crazyflie not charging
That's great to hear, so this isn't necessarily a faulty sensor on my Crazyflie? I'll flash the new firmware and give it a go in the next few days. And thanks for the link to the propeller issue, the image of the break is unfortunately looking very similar to what's happening to some of my propellers.