Search found 2122 matches

by tobias
Fri Feb 15, 2013 9:28 pm
Forum: Developer Discussions
Topic: Decoding SPEKTRUM TX signal
Replies: 4
Views: 3959

Re: Decoding SPEKTRUM TX signal

We have some experimental code that can make the Crazyradio work as a transmmitter module but it needs more work. Also attching it to the transmitter would be a bit hackish. Hopefully someone could design a case that could be 3D printed to make it look neat.
by tobias
Fri Feb 15, 2013 9:15 pm
Forum: Developer Discussions
Topic: crazyflie-firmware
Replies: 9
Views: 8256

Re: crazyflie-firmware

The MPU6050 can put the i2c aux in passthrough so that it looks like they are on the same bus.
by tobias
Wed Feb 13, 2013 8:22 pm
Forum: Developer Discussions
Topic: crazyflie-firmware
Replies: 9
Views: 8256

Re: crazyflie-firmware

We have quickly been experimenting with a MARG filter but it requires the magnetometer to be calibrated since it is very offset by the motor magnet fields. Other then that it should be pretty straight forward as the Madgwick's and Mayhony's algorithms exist in MARG versions as well. However making a...
by tobias
Wed Feb 13, 2013 8:12 pm
Forum: Developer Discussions
Topic: Decoding SPEKTRUM TX signal
Replies: 4
Views: 3959

Re: Decoding SPEKTRUM TX signal

Would have been very neat but from my understanding this is not possible with the nRF24L01+ chip we use. I think Spektrum use DSS modulation and the nRF GFSK. What could be done is to make the Crazyradio work as a transmitter module that you could attach to you transmitter.
by tobias
Wed Feb 13, 2013 8:05 pm
Forum: Developer Discussions
Topic: Add-ons!
Replies: 13
Views: 10170

Re: Add-ons!

Great suggestions. We will, as soon as we get time, do a simple model of the Crazyflie board and upload to the repository. KiCad is a bit time consuming doing stuff like this though...
by tobias
Wed Feb 13, 2013 8:01 pm
Forum: Developer Discussions
Topic: GPS receiver extension
Replies: 11
Views: 9669

Re: GPS receiver extension

GPS would be a really neat option. I'm a bit worried that the NAVIGATRON module might weigh a bit to much and I can't find it specified. Another aspect is that it would be good if the GPS module could run from 2.8V. It is possible to configure the Crazyflie to run on 3.3V instead but it is not recom...
by tobias
Wed Feb 13, 2013 7:50 pm
Forum: Developer Discussions
Topic: Using an Apple Trackpad for controlling
Replies: 8
Views: 6116

Re: Using an Apple Trackpad for controlling

I'll give the explaing a shot with some reservation for being wrong. The python function within the Crazyflie class lookes like this def sendControlSetpoint(self, roll, pitch, yaw, thrust) roll, pitch should be floating point numbers in degrees where 0 would be level. yaw should be a floating point ...
by tobias
Fri Feb 08, 2013 5:14 pm
Forum: Developer Discussions
Topic: Larger battery? 340mHa (plus 1 gram camera)
Replies: 9
Views: 7331

Re: Larger battery? 340mHa (plus 1 gram camera)

Changing battery shouldn't be a problem but I'm not so sure your suggested battery will work that well. They state: 10. Continous discharging current: 340mA 11. Discharging Current (Max. ): 680mA The Crazyflie consumes 1400mA only when hovering. So to get good flight performance you need a >15C pref...
by tobias
Fri Feb 08, 2013 8:12 am
Forum: Developer Discussions
Topic: Using an Apple Trackpad for controlling
Replies: 8
Views: 6116

Re: Using an Apple Trackpad for controlling

Great, I think we have our first community development started. I'm not the python and PC expert so I hope Arnaud or Marcus will jump in. I know Arnaud quickly tested the cfclient on OSX but had problems with the joystick driver. Other then that I think it worked pretty easily. Implementing what you...
by tobias
Fri Feb 08, 2013 8:03 am
Forum: Developer Discussions
Topic: Aerobatics
Replies: 4
Views: 4054

Re: Aerobatics

This is on the wishlist and should be implemented pretty soon either by us or someone else joining the community, the power of open source. This mode you are talking about I think is referred to as assisted acrobatic mode. We could also implement a rate controlled mode that allows even more aggressi...