Search found 11 matches

by DataBoy
Mon Jan 05, 2015 4:08 pm
Forum: Developer Discussions
Topic: OpenCV hover-assist
Replies: 34
Views: 20748

Re: OpenCV hover-assist

Than you Marcus, I shall go down this path and try and do it "right". Although I must say your team has set a pretty lofty bar for right...(a little aviation humor to start your new year)...D
by DataBoy
Sun Jan 04, 2015 5:00 am
Forum: Developer Discussions
Topic: OpenCV hover-assist
Replies: 34
Views: 20748

Re: OpenCV hover-assist

So, I've scanned most of the source, both client and flie, and have a (very!) vague idea about what's going on. I think that the input.py program would be a logical place to knit in my theoretical hover-assist, +/- the thrust in that loop. I'm thinking to keep my hands as far out of the existing cod...
by DataBoy
Fri Jan 02, 2015 4:09 pm
Forum: Developer Discussions
Topic: OpenCV hover-assist
Replies: 34
Views: 20748

Re: OpenCV hover-assist

Working off this: https://github.com/jessicaaustin/roboti ... tracker.py

She hooked a camera up to it, which should make for a decent tracker, at least until it crashes into my forehead seeking blue reflections...;)
by DataBoy
Fri Jan 02, 2015 4:29 am
Forum: Developer Discussions
Topic: OpenCV hover-assist
Replies: 34
Views: 20748

OpenCV hover-assist

Still haven't destroyed our two CF 2.0's and hoping to snake in some hover assistance using OpenCV with a webcam. The blue LED make for good tracking (except when the lights bounce off my shiny forehead...). I've cobbled together some inline python code based on OpenCV examples, and I'm looking for ...
by DataBoy
Thu Jan 01, 2015 9:42 pm
Forum: General discussions
Topic: Crazyflie 2.0 feedback
Replies: 34
Views: 20949

Re: First run

dbrgn wrote:
niekt wrote: trying to get an ultrasonic sensor onboard.
New horizons in location tech out of Ireland:
This is interesting, I've asked for the weight... http://www.decawave.com/products/dwm1000-module
by DataBoy
Wed Dec 31, 2014 3:59 pm
Forum: Quadcopters
Topic: Crazyflie Hover with SimpleCV
Replies: 3
Views: 4814

Re: Crazyflie Hover with SimpleCV

Any further on this? (SimpleCV looks to be so...simple!) Might this knit in with the cfclient nicely and stay in native python?
by DataBoy
Tue Dec 30, 2014 6:31 pm
Forum: Developer discussions
Topic: Communication problems when running multiple Crazyflies
Replies: 5
Views: 5603

Re: Communication problems when running multiple Crazyflies

There's a Quality signal/display on the client that you might be able to plot. Normally there's a means to determine Bit Error Rate (or block errror rate) so you can try stuff and see if it helps. One thing to determine is: is this an uplink (computer to flie) or downlink problem. Or both. If your s...
by DataBoy
Tue Dec 30, 2014 1:15 am
Forum: Developer discussions
Topic: Communication problems when running multiple Crazyflies
Replies: 5
Views: 5603

Re: Communication problems when running multiple Crazyflies

I'm new to CF, but I do RF comms professionally, so maybe I can offer some minor assistance. Presume you're using 250 KB channels (not 1 or 2 MB)? There is an effect known as Intermodulation (IM) in which frequencies add and subtract from each other forming an algebraic mess (2A-B, etc.). Way too mu...
by DataBoy
Sun Dec 28, 2014 7:33 pm
Forum: General discussions
Topic: Greetings from Sunny Miami
Replies: 5
Views: 3015

Re: Greetings from Sunny Miami

Thanks for that. I"ve been peering at those little cameras, and doubt they'll get much lighter in the immediate future. I'm wondering if there's any hope of doing it digital one day, and exploiting some of that Crazyradio bandwidth, perhaps for a reduce frame rate or some such. I guess the heav...
by DataBoy
Sun Dec 28, 2014 7:26 pm
Forum: General discussions
Topic: Greetings from Sunny Miami
Replies: 5
Views: 3015

Re: Greetings from Sunny Miami

the Generic_OS_X mapping for the PS3 controller has R1 mapped to full throttle for some reason. The way i hold the controller it is very easy to accidentally press that button, sending the CrazyFlie soaring! Took me a couple of flights before i realized what was going on...Might be completely unrel...