CF LED Ring Expansion

Discussions and questions about the Crazyflie Nano Quadcopter
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Greensprings
Member
Posts: 30
Joined: Sat Feb 07, 2015 11:32 pm

CF LED Ring Expansion

Post by Greensprings »

Can someone develop a concise explination of what can be done with the CF LED Ring Expansion and how to do it

I understand the variables are in the Client Parameters tab, but the whats and hows? Thanks!
arnaud
Bitcraze
Posts: 2538
Joined: Tue Feb 06, 2007 12:36 pm

Re: CF LED Ring Expansion

Post by arnaud »

Hi,

This is a pretty broad and hard question :)

What can be done with the LED ring is to set independently the color of the LED quickly from the Firmware, after that the only limit is the imagination :-).

The basic things we have though about where:
- Simple sequences (eg. spinner)
- Fixed patterns
- Pattern that changes with the copter sensor values

For all these ideas we have functions implemented in the firmware, making such a function is the way to go to make your own pattern: https://github.com/bitcraze/crazyflie-f ... ixelring.c and there is a thread on the forum on how to program the ring http://forum.bitcraze.se/viewtopic.php? ... 218&p=6861

Other things are possible and for example the ring is used as a marker for camera tracking of the Crazyflie: https://twitter.com/chromebookbob/statu ... 5700246529 and http://forum.bitcraze.se/viewtopic.php? ... 291&p=6988
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