Search found 51 matches

by dbrgn
Fri Dec 19, 2014 8:58 am
Forum: Developer Discussions
Topic: How to start?
Replies: 5
Views: 5131

Re: How to start?

The best book I know about microcontrollers for beginners is this one: http://shop.oreilly.com/product/0636920028161.do I already recommended it in another thread.
by dbrgn
Fri Dec 19, 2014 8:33 am
Forum: Developer Discussions
Topic: Beginner with embedded development
Replies: 8
Views: 4767

Re: Beginner with embedded development

A tip for any other beginners out there is that I've gotten "newbieIDE" for windows and have been going through the earlier mentioned book to learn the basics of C. I found Eclipse in the VM a bit daunting to be honest and newbieIDE is quite simple in comparison. I'm sure when I get some ...
by dbrgn
Fri Dec 19, 2014 12:08 am
Forum: Developer Discussions
Topic: Beginner with embedded development
Replies: 8
Views: 4767

Re: Beginner with embedded development

A sort of Mid term goal is to have the LEDs on the exp ring change from green to red progressively as the battery looses charge - a bit like a clock ! Hey. That battery charge indicator is actually a *really* great idea. I just did my first firmware hack and implemented that (although I used blue i...
by dbrgn
Thu Dec 18, 2014 9:21 pm
Forum: Support
Topic: Crazyflie 2.0: Lots of trimming needed
Replies: 1
Views: 1657

Crazyflie 2.0: Lots of trimming needed

With my crazyflie I need a roll trim value of 4.5. Is there something I can do about it?
by dbrgn
Thu Dec 18, 2014 8:22 pm
Forum: Support
Topic: Crazyflie 2.0 turns off when motors start
Replies: 9
Views: 4981

Re: Crazyflie 2.0 turns off when motors start

Awesome, the firmware upgrade helped!And the DFU upgrade is almost easier than via cfclient :)
by dbrgn
Thu Dec 18, 2014 2:30 pm
Forum: Support
Topic: Crazyflie 2.0 turns off when motors start
Replies: 9
Views: 4981

Re: Crazyflie 2.0 turns off when motors start

I'll try the DFU update tonight and will let you know.
by dbrgn
Thu Dec 18, 2014 10:12 am
Forum: Support
Topic: Crazyflie 2.0 turns off when motors start
Replies: 9
Views: 4981

Re: Crazyflie 2.0 turns off when motors start

Tobias, yes, I'll do that. But for the firmware upgrade first I'll have to get the current cfclient to work (see support issue regarding the segfaults) :)
by dbrgn
Tue Dec 16, 2014 11:22 pm
Forum: Support
Topic: Crazyflie 2.0 turns off when motors start
Replies: 9
Views: 4981

Crazyflie 2.0 turns off when motors start

I can start my Crazyflie 2.0 just fine, the self test works. All LEDs light up as they should. But when adding thrust, the flie immediately turns off. https://www.youtube.com/watch?v=LSJgYeyAhiM Is this some kind of short-circuit? Or is that the issue that was addressed in the firmware update? The o...
by dbrgn
Tue Dec 16, 2014 11:05 pm
Forum: General discussions
Topic: Crazyflie 2.0 feedback
Replies: 34
Views: 21087

Re: Crazyflie 2.0 feedback

The balancing really does help a lot. The crazyflie was initially unfliable. I could never get it to hover in the air. Now with balanced propellers, it is still hard but manageable. Some improvement suggestions: - The pushbutton is quite hard to press. Maybe you find a better one for a future releas...
by dbrgn
Tue Dec 16, 2014 10:12 pm
Forum: Bitcraze
Topic: [SOLVED]:SDL2.dll & pysdl2 error - self built ubuntu14.10 VM
Replies: 2
Views: 3830

Re: cflcient:SDL2.dll & pysdl2 error - self built ubuntu14.1

I stumbled over the same issue this evening. Pull request is already here: https://github.com/bitcraze/crazyflie-c ... n/pull/133