Search found 15 matches

by PierreD
Sat Sep 10, 2016 4:31 pm
Forum: Developer Discussions
Topic: Camera issue with crazyflie-ar-detector
Replies: 3
Views: 2640

Re: Camera issue with crazyflie-ar-detector

Even with the highest shutter speed possible, I had still some motion blur (and I needed sooo much light)! It's because my camera was really crappy. Now with the PS3 EYE it's better but I still need a lot of light so it's pretty difficult to setup everything each time I want to use it. As Arnaud sai...
by PierreD
Wed Sep 07, 2016 2:18 pm
Forum: Developer Discussions
Topic: Situation Awareness - Free Fall Prevention
Replies: 12
Views: 6754

Re: Situation Awareness - Free Fall Prevention

Happy to ear that!
Could you explain (very quickly) what was the reason of the watchdog issue?

I'll try that as soon as I get my hands back on a crazyflie!

Unfortunately It won't be this week. :(
by PierreD
Tue Sep 06, 2016 10:22 am
Forum: Developer Discussions
Topic: Situation Awareness - Free Fall Prevention
Replies: 12
Views: 6754

Re: Situation Awareness - Free Fall Prevention

When you compile the firmware, use the "Make Debug" link. If I remember well, it should skip some testing.

I'm glad to ear that the ground effect is positive !
by PierreD
Mon Sep 05, 2016 5:08 pm
Forum: Developer Discussions
Topic: Situation Awareness - Free Fall Prevention
Replies: 12
Views: 6754

Re: Situation Awareness - Free Fall Prevention

Quick reply : Maybe you can try to build the firmware on debug mode. Apparently it can solve this type of issue if it's not because of your code. Worth the try ! One question : do you "initialize" the ground altitude? Because the barometer gives you the altitude at sea level. Maybe you'll ...
by PierreD
Sat Sep 03, 2016 9:53 pm
Forum: General discussions
Topic: Enabling Altitude Hold
Replies: 6
Views: 5094

Re: Enabling Altitude Hold

It's true that althold would be a huge improvement for mobile phone since flying the crazyflie with them is really hard. But since the packet used to send set-points is about to change, it would be better to wait and then modify the apps. Because at this time, the way althold is handled in the pytho...
by PierreD
Thu Sep 01, 2016 3:09 pm
Forum: Developer Discussions
Topic: Camera issue with crazyflie-ar-detector
Replies: 3
Views: 2640

Re: Camera issue with crazyflie-ar-detector

I finally bought the PS3 camera and well, it's really better than my previous webcam! It's quite hard to configure the camera and you have to do it again each time want to use it because of the different light. But at the end I was able to make the crazyflie hover autonomously and keep its position ...
by PierreD
Thu Sep 01, 2016 2:56 pm
Forum: General discussions
Topic: Enabling Altitude Hold
Replies: 6
Views: 5094

Re: Enabling Altitude Hold

You're welcome, enjoy the flight! ;) Altough, if you find that the althold mode is not quite stable (like huge drop or rise etc), you can try to put a piece of foam under the crazyflie in order to cover the barometer. It seems to improve the values measured by the barometer (less "wind" ef...
by PierreD
Tue Aug 30, 2016 3:09 pm
Forum: Developer Discussions
Topic: Situation Awareness - Free Fall Prevention
Replies: 12
Views: 6754

Re: Situation Awareness - Free Fall Prevention

Hi Konstantin,
I'm a bit busy this week, but I'll answer to you this week-end or at the beginning of next week!
by PierreD
Tue Aug 30, 2016 3:05 pm
Forum: Developer Discussions
Topic: Setpoint explanation
Replies: 3
Views: 2826

Re: Setpoint explanation

Take a look at the code used on the kinect project. In control folder you'll find kctrl.py.
It's this file who send the setpoints according to the actual position of the crazyflie and the desired position. It uses several PIDs in order to control each value (yaw pitch roll thrust).
by PierreD
Mon Aug 29, 2016 8:41 am
Forum: Developer Discussions
Topic: Setpoint explanation
Replies: 3
Views: 2826

Re: Setpoint explanation

Basically, the setpoint contains (roll, pitch, yaw, thrust). (Take a look here ) Roll and pitch are in degrees, yaw is in degree per second and finally thrust is a value between 0 and 65535. There are two different methods for autonomous flight : - the older one uses a kinect or a webcam. In this me...