Crazyflie 2.0 decks

Some time ago we decided that it would be nice to have a name for the Crazyflie expansion boards, a bit like the Arduino shields or the Beagle bone capes. We organized a poll on our website, that ended with cheating so we organized a local vote and flykit won. In second place was the deck. Over […]

Input-device MUX

When the schools closed for vacation last week Minc (the company accelerator where we have our office) hosted a “bring-your-children-to-work” day. The original idea came from Fredrik who works at the Swedish Arduino office (in the same building as us). One of the goals whas to let children see cool technology and to get a chance to try […]

Measuring propeller RPM: Part 3

Finally here is the last, and probably most interesting part of the “Measuring propeller RPM” series, see part 1 and part 2 to catch up. Now it is time to gather some data and display what we get. As described in part 2 we are now able to measure each propeller RPM with the expansion board we […]

Measuring propeller RPM: Part 2

We finally got some time to follow up on the previous blog post Measuring propeller RPM: Part 1. In this post we will continue where we left of and describe a little about the software we have implemented. The sensor output, as showed in the scope picture, can be connected directly to a digital input. We connected them […]

Refocusing for 2015

During the last week there’s been lots of work, but we don’t have that much to show for it. We’ve spent a lot of time discussing what we should do during 2015. Last year there was a clear focus: develop, release and ship the Crazyflie 2.0. But up until now we haven’t really discussed what […]

Measuring propeller RPM: Part 1

We have had numerous request to get a transfer function from the motor PWM output to propeller RPM. The next step would then be to get the propeller RPM to thrust transfer function as well. With that it is easier to do calculations on the system and mathematical models. So this and probably next post […]

Crazyflie 2.0 radio communication

The Crazyflie 2.0 supports two types of radio protocols out of the box: ESB (Enhanced ShockBurst) for Crazyradio/Crazyradio PA USB dongle compatibility and  Bluetooth LE for mobile devices. All Crazyflie 2.0’s are shipped with a radio bootloader, able to update virtually all the different parts of the firmware running in Crazyflie 2.0. We thought we would do […]

Hectic release week!

This week is going to be an exiting week! Crazyflie 2.0 has started to ship and we are pushing out a lot of code during the week. We wish that we would have gotten more time to work on the code before releasing it, but all three of us have been really busy with production. […]

A week in Shenzhen

Starting up production and doing the first batch of a product is always problematic, no matter how well you try to plan it. So just like for the Crazyflie 1.0, we decided to pack our bags and leave for Shenzhen for the production of the first batch of the Crazyflie 2.0. When we launched the […]

Expansion board naming vote

Wow, we are a bit overwhelmed with all the naming suggestions we got for our expansion board last week. It’s fun to see so many people joining in and having an opinion, thanks to everyone that dropped a suggestion. After discussing it we decided to put favorite suggestions into a poll and see what our […]

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