Search found 25 matches
- Sun Dec 15, 2019 10:40 pm
- Forum: Bitcraze
- Topic: 2.0 vs 2.1
- Replies: 1
- Views: 2410
2.0 vs 2.1
What are the differences between the Crazyflie 2.0 and 2.1 models please? I am coming back to experimenting with my 2.0 after some time. Is there anything I can't do with it that I can do with the 2.1? Any incompatible decks for instance? Apologies if this has already been summarised somewhere (alth...
- Tue May 15, 2018 10:24 am
- Forum: General discussions
- Topic: Atmosphere and gravity modelling for CrazyFlie2
- Replies: 5
- Views: 3591
Re: Atmosphere and gravity modelling for CrazyFlie2
It is actually going to fly - but note the very high RPMs and oversize rotor blades: https://spaceflightnow.com/2018/05/14/helicopter-to-accompany-nasas-next-mars-rover-to-red-planet/ So I wonder how high a drone could go on Earth with similar adaptations? Maybe a drone launched from a balloon with ...
- Fri Mar 16, 2018 1:36 pm
- Forum: General discussions
- Topic: Atmosphere and gravity modelling for CrazyFlie2
- Replies: 5
- Views: 3591
- Wed Feb 21, 2018 10:12 pm
- Forum: General discussions
- Topic: Craziest of Crazyflies - Spinning out of control
- Replies: 12
- Views: 10645
Re: Craziest of Crazyflies - Spinning out of control
I had the same problem and like the other posters, I traced it to a problem with the game controller I was using. In my case I was using a Vakoss PS3-type controller, and I had forgot to select "analog". So I imagine it was flying with some axes hard over.
- Sat Feb 10, 2018 1:00 pm
- Forum: General discussions
- Topic: Atmosphere and gravity modelling for CrazyFlie2
- Replies: 5
- Views: 3591
Atmosphere and gravity modelling for CrazyFlie2
Does the Crazyflie have an atmospheric model as part of its control algorithms? For instance, it has a barometer, so is ambient air pressure taken into account? If the air pressure is 1020mBar one day and 980 the next day, then presumably the propellers have to compensate by a factor of 980/1020 to ...
- Sat Feb 10, 2018 12:19 pm
- Forum: General discussions
- Topic: USB charging specs for CrazyFlie2... solar power...
- Replies: 1
- Views: 1950
USB charging specs for CrazyFlie2... solar power...
A colleague of mine had some very off the wall ideas for drones, which got me thinking. I will break them down into a couple of threads. Right, first off, what are the charging parameters for the CrazyFlie2 to successfully charge over the USB port? I.e what voltage and current? Specifically, someone...
- Sat Feb 10, 2018 12:12 pm
- Forum: General discussions
- Topic: United kingdom
- Replies: 1
- Views: 1989
Re: United kingdom
I have purchased spare parts and expansion decks from the unmannedtech website a couple of times with no trouble whatsoever. Shipping was quite prompt.
- Sat Feb 10, 2018 11:53 am
- Forum: Developer Discussions
- Topic: UART vs I2C vs SPI
- Replies: 1
- Views: 1789
UART vs I2C vs SPI
I have been considering creating my own deck. Looking over some similar posts on the fora, there have been some reports of incompatibilities using both the I2C and SPI buses, so what would work best? I note also that there are two UARTs available. Which of these four options is on which pin please o...
- Sat Feb 10, 2018 10:23 am
- Forum: Developer Discussions
- Topic: OpenCV hover-assist
- Replies: 34
- Views: 20650
Re: OpenCV hover-assist
Many thanks for this. I checked the GitHub code quickly, but could I just ask: Why is the variable "W" set the way it is? I am assuming this is the X,Y coordinates of your LED square to detect. So why w=0.026/2.0 ? Were you tracking a particular altitude? Apologies if I have got the wrong ...
- Fri Jan 26, 2018 10:35 pm
- Forum: Developer Discussions
- Topic: Attaching LED's to CrazyFlie 2.0 and OpenCV
- Replies: 3
- Views: 2349
Re: Attaching LED's to CrazyFlie 2.0 and OpenCV
This has the potential to be an excellent first project for basic IO off the pins (turning GPIO pins on and off, by extension using them as input pins, etc) but I really can't make out the C at all. I suppose there's not much you can say except that I should study C hard.... I have coded for Arduino...