Search found 33 matches

by Calvin Chua
Thu Nov 05, 2020 10:36 am
Forum: Quadcopters
Topic: Low Level Control
Replies: 9
Views: 524

Re: Low Level Control

I see. Thanks. I will set that up tomorrow and test it. Thanks for help
by Calvin Chua
Thu Nov 05, 2020 10:11 am
Forum: Quadcopters
Topic: Low Level Control
Replies: 9
Views: 524

Re: Low Level Control

I am using the app on Windows, is it possible to do it using that?
by Calvin Chua
Thu Nov 05, 2020 9:47 am
Forum: Quadcopters
Topic: Low Level Control
Replies: 9
Views: 524

Re: Low Level Control

Hi, thanks for the reply, is it possible to show me how to modify the physicalConstant.h file mentioned on board since the firmware is uploaded as a zip file. Is it just find the file in the zip and change the constant? Am I allowed to do that? Thanks
by Calvin Chua
Tue Nov 03, 2020 10:35 am
Forum: Quadcopters
Topic: Low Level Control
Replies: 9
Views: 524

Re: Low Level Control

Add on to that, is it possible to change the inertia tensor of the quadcopter like changing the mass constant you mentioned before?
by Calvin Chua
Tue Nov 03, 2020 10:29 am
Forum: Quadcopters
Topic: Low Level Control
Replies: 9
Views: 524

Re: Low Level Control

Hi Arnaud, Thank you for your reply. I have been tuning the PID attitude and havent get a giid result yet. I will look into the PID rate later. For the state estimation, what is the accuracy for each one? I conducted an experiment of quadcopter hovering without the cage and my goal is to check the t...
by Calvin Chua
Tue Nov 03, 2020 5:09 am
Forum: Quadcopters
Topic: Low Level Control
Replies: 9
Views: 524

Low Level Control

Hi, is there a possibility to control the quadcopter in a low level method, eg: 1. Outputing the rotor speed 2. Outputing the force and moment required. (I found something that control by desired force and angle. But I added on a cage and the quadcopter become really unstable)https://github.com/bitc...
by Calvin Chua
Thu Oct 01, 2020 1:16 am
Forum: General discussions
Topic: Data Logging
Replies: 3
Views: 718

Re: Data Logging

Hi Kimberley,

Can I ask how does the stateEstimate calculates the velocity?
I am applying a height PID controller on the crazyflie.
I am trying to print the height data of the quadcopter using the stateEstimate but it doesnt capture the disturbance I apply to the quadcopter
by Calvin Chua
Tue Sep 29, 2020 7:52 am
Forum: Developer Discussions
Topic: Controller
Replies: 5
Views: 504

Re: Controller

Hi, thanks for the reply. How would the controller can be tuned to fix the change of the model considering if the model is changed, considering the moment equation for the quadcopter is M = I*wdot for linearised system. changing the model means it will change the I, how would changing the PID gain w...
by Calvin Chua
Tue Sep 29, 2020 1:33 am
Forum: Developer Discussions
Topic: Controller
Replies: 5
Views: 504

Re: Controller

Is there any methods to control the quadcopter other than send_setpoint function. The quadcopter becomes unstable after adding a cage on it
by Calvin Chua
Mon Sep 28, 2020 1:32 am
Forum: Developer Discussions
Topic: Controller
Replies: 5
Views: 504

Re: Controller

Besides, is the thrust parameters from stabilizer directly taken from the motor input or calculated by the acceleration of the quadcopter? I output a thrust of 65535 using send_setpoint, but when I logged the data at the same time, it only returns me thrust of 40k++