Author: Marcus

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Pre-order has started!

  2013-02-01  |     |    58 Comments

Wait, what? Is it Monday again already?! Well no, don’t worry you didn’t miss the weekend. The reason for breaking our “Monday post” tradition is that we couldn’t wait to announce that the pre-order has started for the Crazyflie!!

 

Crazyflie Nano Quadcopter

 

The last couple of weeks has been really busy finalizing as much as possible and finally the time has come. In the end we couldn’t decide on whether we should add the extra sensors or not so we decided on making two versions, one with the basic sensors and one with the extra sensors. Keep in mind that there’s no firmware for the extra sensors yet but if you are interested in more advanced regulation algorithms and performance then you should get the kit with the extra sensors.

We put together two bundles for the different “sensor packs”. One is called Crazyflie Nano Quadcopter Kit 6-DOF and the other 10-DOF. They both include the Crazyradio USB dongle and a 2.4GHz antenna for it. The price for the kits are $149 for the 6-DOF and $173 for the 10-DOF. For full product descriptions head over to Seeedstudio and have a look. There’s also spare parts available to pre-order which could be a wise choice depending on what you are planning on using the Crazyflie for :-)

Here’s the link to the Crazyflie pre-order at Seeedstudio.

Here’s the time schedule for the pre-orders:

  • Pre-order: Jan 31st – Feb 18th
  • Shipping: April 25th

To be totally honest we are not sure how to handle the transition from pre-order to “normal” orders. This depends a bit on how many we sell and how fast we can get a “normal” stock up again. So if you are interested in getting a kit make sure to get one during the pre-order!

Like we’ve said earlier we wanted to release the source for the firmware/software as well as the schematics so you know what you are buying and can already now think of hacks and projects for when your Crazyflie arrives. The choice fell on Bitbucket where all our repos and bugtrackers are located. The only thing we are not releasing yet is the complete KiCad hardware design, but once the pre-orders ship it will be in the repos as well. We are currently pushing the code into the repos on Bitbucket but haven’t had time to complete all of them so we will keep publishing them during the weekend.

So if you want a Crazyflie for flying, doing development or just to help support our project then head over to Seeedstudio and pre-order one.

Last but not least: What would an occasion like this be without a new video :-)

Only weeks left

  2013-01-22  |     |    9 Comments

Who knew that it was possible to discuss product descriptions for almost a whole evening… Since the release is getting really close now we actually have finalize the product description and it turns out that we didn’t all agree on everything. One thing that’s good about being three people in this project is that we can have a lot of discussions that gives (hopefully) good results and the bad thing is that there’s a lot of discussions which takes a lot of time :-)

Another night without any flying at all, just administrative stuff… But if everything is goes according to plan the pre-order should start within the two next weeks!

Crazyflie OpenCV tracking test

  2013-01-15  |     |    11 Comments

We’re still busy with administrative stuff and preparing everything for release so sorry for the lack of tech posts. Hopefully there will be more time for those later :-)

But we did spend one night this week trying out something that we have talked about forever: Using OpenCV to auto-pilot the Crazyflie. For controlling the Crazyflie from a Python scripts it’s just a couple of lines and then you are ready to go. Add some object tracking to that and you can make an autonomous Crazyflie…or you could make a crashing one like the video below… The video is shot using a Playstation Eye lying on the floor. The camera has good potential for tracking since it’s low resolution, cheap and can do up to 120 fps. The plan is to use the size of the detection to control the thrust and the center of it to control the roll and pitch.

Unfortunately the latency was too large for doing a control loop for roll/pitch/thrust so it crashes. But hopefully in the future we, or someone in the community, will have some more time to spend on this. We think that it definitely has potential!

Part of this test was also to have another project where we use the Crazyflie Python API to make sure that it can easily be dropped into other projects.

 

Vacation is over

  2013-01-08  |     |    Leave a comment

We are back from vacation and now it’s full speed ahead! As you might have read during the holidays there hasn’t been that much going on, we have been resting up for a busy spring.

During the upcoming week we will be writing product descriptions for the Crazyflie Kit, Crazyradio and spare parts kit that will be published for the pre-order at Seeedstudio. We are also working on cleaning up the final parts of the code and cutting an assembly video for the hardware.

So the next couple of weeks will be busy and exciting so make sure to stay tuned :-)

Happy New Year!

  2012-12-31  |     |    Leave a comment

So a year ago, on the 3rd of January 2012, we published the first post here on bitcraze.se as we moved from our old site at daedalus.nu. Back then we were fairly confident that we would release the kit during the first half of 2012. But it turned out the be more work (and more problems) than what we thought. Now as the new year begins we are very confident that anyone who wants a Crazyflie will have one in their hand before the first half of 2013 has passed.

Even though we haven’t made much progress the last two weeks it’s now a matter of fixing the details like packaging, what parts should be in the spare kit and so on. We feel that the hardware and the current state of the software is good enough for release when the kit is released (after some cleaning up). There’s still a long list of stuff that we would like to do but don’t really have the time for. So if you get a Crazyflie Kit and want to contribute there’s a lot of fun stuff still left that we need help with.

Next week is our first Monday meeting after the holidays and then it’s full throttle forward.

Happy new year and thanks for supporting us!

Merry Christmas!

  2012-12-24  |     |    Leave a comment

Even though it’s Christmas Eve we managed to sneak away from the celebrations to post the regular Monday post. Unfortunately there’s not much progress to report this week, but we are continuing the planning for the release of the Crazyflie Dev Kit. More and more stuff is being sorted and soon all the details will be in place. As soon as we have a timeplan we feel that we can commit to we will release more information.

Finally we want to wish everyone a Merry Christmas!!

Moving forward…slowly

  2012-12-17  |     |    14 Comments

A combination of Christmas preparation, overtime and water leakage took most of the time during the last week so not much progress was done :-(

So what’s the current status in the project? Well, we are still discussing with Seeedstudio on how to start up but most of the things are now in place. We are continuously working on the software/firmware and wiki when we have spare time. Also since we don’t really know how many kits we will sell we are aiming at having a two week pre-order phase before the production of the kits begin.

Pre-series tested

  2012-12-04  |     |    1 Comment

On Wednesday we assembled and tested all of the kits in the pre-series. We ran though the production tests, that will be used once the kits are produced, as verification. Since we can’t test that they really can fly the test isn’t covering everything but it checks most of the components. One of the units had a solder-bridge between two of the MPU-6050 pins and our tests showed that the unit was faulty. We are glad our tests caught the problem and removing the short fixed it.

The assembly doesn’t take too long and once you have done a few it’s fairly quick. We timed the last one we assembled and it was finished in just under 10 minutes (including fixing errors that were made :-) ). And that time was done by the worst solderer of us! As long as you are a bit steady on you hand it should be ok. It was a really great feeling unpacking, assembling, testing and then directly flying them! We numbered all the units and will track them if there’s any problems. So during the next weeks we will be flying a lot :-). We cross our fingers that they will hold up to what we expect.

The change we did where, connecting the motors directly to the battery and not through the power management chip, turned out great and we could feel the 8% increased power difference (it might have been some placebo effect but it just feels great).

To sum it all up it was a great night and we are really happy with the results! We remember in the beginning when we had to be in a pretty big room to be able to fly the Crazyflie at all and now it’s so stable you can (if you are brave enough) hover it 10 cm in front of your face and then push the throttle and it swishes away!

As for the project progress we are now discussing with Seeedstudio on how to carry on and we are trying to sort out the motor mount problem and some smaller issues.

We’ve also spent some time creating a new page on the wiki describing the hardware. It’s still a work in progress, but there’s a lot of information. We will continue updating the wiki whenever there is time.

Head over to our Picasa albums for more pictures.

 

Presentation from Øredev

  2012-11-13  |     |    2 Comments

The last week we have been busy preparing for the presentation we had at the Øredev conference where we talked about the Crazyflie history and design. We had a great time and got to meet some fellow nerds and talk about technology stuff!

All the presentations and keynotes where filmed and can be found on the  Øredev site. So if you have 50 minutes to spare check out our presentation. Or just skip ahead until ~41:00 to see Arnaud stick a Crazyflie in Marcus’ hair…

As for project there’s not much news. We are still waiting eagerly for the pre-series units that will arrive in a couple of weeks.

Crazyflie presentation at Øredev!

  2012-10-22  |   

This week we decided to do our weekly meeting at the local pub. Why? We needed some beer to calm our nerves and to get some expert advice from Martin, one of our collegues, that has presented at a lot of conferances. The reason for this is that in about two weeks we are presenting the Crazyflie project at the annual Øredev developer conference in Malmo, Sweden.

The presentation will be a mix of the project history, some tech details and of course a demo (hopefully a successful one without any injuries ;-) ).

So if you are attending Oredev drop by our presentation on the 7th of November at 15:40 in the Nyan Cat room and we will do our best to give you an interesting 50 minutes.