Search found 5 matches

by liwanggt
Mon Jun 20, 2016 8:13 pm
Forum: Developer Discussions
Topic: Tuning crazyflie for smooth, stable and responsive flight
Replies: 52
Views: 19040

Re: Tuning crazyflie for smooth, stable and responsive flight

My tracking markers weigh 1g each. I also have 3D printed frames hanging there. I assume they do influence the flight performance for a 27g crazyflie. But since current flight performance is rock solid, I didn't bother changing to lighter markers and frames. Li Are the markers heavy enough to alter ...
by liwanggt
Fri Jun 17, 2016 3:15 pm
Forum: Developer Discussions
Topic: Tuning crazyflie for smooth, stable and responsive flight
Replies: 52
Views: 19040

Re: Tuning crazyflie for smooth, stable and responsive flight

From what I observed during some autonomous flights, the latency is about 0.1s with logging frequency of 50Hz. Yes, the Crazyflie is symmetric. But the tracking markers I attached to the Crazyflie is not symmetric. The markers I placed are slightly off the center in the roll direction. The motion ca...
by liwanggt
Wed Jun 15, 2016 10:07 pm
Forum: Developer Discussions
Topic: Tuning crazyflie for smooth, stable and responsive flight
Replies: 52
Views: 19040

Re: Tuning crazyflie for smooth, stable and responsive flight

I did a simple comparison between the new and old PID parameters. The experiment set up is: 30s manual control using joystick Optitrack motion capture system tracking the crazyflie2 ROS recording joystick command and Optitrack data Here is the result. (yaw input is yawrate, ignored here) 1. Roll/Pit...
by liwanggt
Tue Jun 07, 2016 8:45 pm
Forum: Developer Discussions
Topic: Tuning crazyflie for smooth, stable and responsive flight
Replies: 52
Views: 19040

Re: Tuning crazyflie for smooth, stable and responsive flight

I have noticed that the VM is on the "crazyflie2 branch" by default, rather than the "master branch". I also noticed that the crazyflie 2.0 I recently bought came with the "crazyflie2 branch" firmware. My question is: what is the difference between those two branches in terms of attitude estimation ...
by liwanggt
Thu Apr 14, 2016 3:53 pm
Forum: Developer Discussions
Topic: Crazyflie with Wifi module (ESP8266)
Replies: 2
Views: 1689

Crazyflie with Wifi module (ESP8266)

Hi, I am working on a project of controlling crazyflie swarm. Instead of sharing radio channel across multiple crazyflie, I am planning to replace the radio communication with Wifi by adding a serial to Wifi module (ESP8266), so that we can have higher update rate. I saw this has been done by adding...