Search found 6 matches

by awk
Thu Apr 10, 2014 1:46 pm
Forum: Support
Topic: Crazyflie wants to flip from take-off, unstable in hover
Replies: 12
Views: 9671

Re: Crazyflie wants to flip from take-off, unstable in hover

I tried the alternative parameters suggested, and also tried taking off from the corner of a table (which appeared to reduce the ground effects some). However I'm still struggling greatly to maintain a reasonable hover. My point of comparison is controlling other RC electric helicopters with counter...
by awk
Mon Apr 07, 2014 8:58 pm
Forum: Support
Topic: Crazyflie wants to flip from take-off, unstable in hover
Replies: 12
Views: 9671

Re: Crazyflie wants to flip from take-off, unstable in hover

Indeed the 'at rest' values were off a little. I was able to trim them out using the UI to get roll & pitch to zero - it's still difficult to fly, it's very prone to drifting quickly - but it's not 'flipping' anymore. One problem is keeping the 'front' consistent. From the perspective of roll &a...
by awk
Mon Apr 07, 2014 12:53 pm
Forum: Support
Topic: Crazyflie wants to flip from take-off, unstable in hover
Replies: 12
Views: 9671

Re: Crazyflie wants to flip from take-off, unstable in hover

Thanks for the quick responses! The client shows a stable artificial horizon when the quadcopter is on the floor etc. There's a bit of change in the Yaw value - but it's less than 1 degree per second (perhaps 0.3-0.5 degrees per second). If I give it some extra thrust to try and overcome ground effe...
by awk
Mon Apr 07, 2014 11:00 am
Forum: Support
Topic: Crazyflie wants to flip from take-off, unstable in hover
Replies: 12
Views: 9671

Re: Crazyflie wants to flip from take-off, unstable in hover

I added a photo of the connections on the reverse : https://www.dropbox.com/sc/jgitoea5dmms9ia/my0gmItXiv I think the connections for M3/M4 are correct - The only thing that strikes me as slightly 'odd' is that from a wiring length/layout perspective M4's solder pads are closer to M3's mount - so M4...
by awk
Sun Apr 06, 2014 3:25 pm
Forum: Support
Topic: Crazyflie wants to flip from take-off, unstable in hover
Replies: 12
Views: 9671

Crazyflie wants to flip from take-off, unstable in hover

My crazyflie flips from takeoff, if I suspend it from a bit of string and apply thrust whilst it generally stays level it will veer off in one direction or another. I've double checked both the prop order and orientation and the wiring (see photos in album below). There doesn't appear to be any hair...
by awk
Sun Oct 27, 2013 2:05 pm
Forum: General discussions
Topic: Constantly changing Yaw value and unstable flight
Replies: 2
Views: 5448

Constantly changing Yaw value and unstable flight

I've just finished assembling my CrazyFlie and am trying to fly it for the first time. It seems to want to always flip or turn over immediately after takeoff. I've checked the motor rotations and propellor configurations and as far as i can tell they're correct. 1 & 3 rotate CCW and 2 & 4 ro...