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Crazyflie in Research: A Growing Research Ecosystem
We try to keep up with recent research using the Crazyflie®. We read a lot of papers and check out new GitHub projects, controllers, and simulators. Sometimes the topics are straightforward and...
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Running Tapestry OS on the Crazyflie: Collective Behavior Without Writing...
What does it take to bring a new coordination stack to the Crazyflie? In this guest post, Jim Steele, founder of Tapestry OS, shares his experience building a Zephyr-based firmware port for the...
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A New Lighthouse Geometry Setup
If you have set up a Lighthouse positioning system with the Crazyflie before, you are familiar with the geometry estimation step. Walking around the room holding a Crazyflie, clicking a few buttons in...
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Release 2026.08
We’re happy to announce that release 2026.08 is now available. This update ships a reworked lighthouse geometry estimator with a redesigned interactive Lighthouse tab, bidirectional DSHOT RPM...
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From peripherals to processors: rethinking communication inside the Crazyflie
For a long time, communication inside the Crazyflie was fairly simple. The main STM32 microcontroller handled flight control, sensors, motors and most of the system logic. A second microcontroller...
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Reproducibility and Continuity in Aerial Robotics
Inheriting an experiment is often harder than building one. A PhD student graduates. A postdoc moves on. A sensor gets discontinued, and six months later, reproducing the earlier work means...
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The next step for Rust at Bitcraze
A few years ago, we started looking at Rust as a possible foundation for parts of the Crazyflie software ecosystem. At first, this was mostly exploratory work: experimenting with Rust on embedded...
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The next step for Rust at Bitcraze
A few years ago, we started looking at Rust as a possible foundation for parts of the Crazyflie software ecosystem. At first, this was mostly exploratory work: experimenting with Rust on embedded...
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Looking Across Recent Research Using the Crazyflie
At Bitcraze we really have a front-row seat in robotics research. Every week, various papers appear: Conference papers, PhD theses, journal articles, and preprints that resonate across the community....
View Article49 Crazyflies, 1 Crazyradio, and cflib2
Flying formations with a swarm is always fun to develop and watch, but it is also a great way to stress-test the software behind it. As part of the development of cflib2, we put it through one of its...
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Bidirectional DSHOT and eRPM Telemetry for the Crazyflie 2.1 Brushless
The Crazyflie 2.1 Brushless uses the DSHOT protocol to command its ESCs — a clean, digital, CRC-protected signal that replaced the old analog PWM signals. But until now, that communication was...
View ArticleBitcraze at ICRA 2026: Highlights from Vienna
ICRA 2026 has wrapped up, and we’re back from a fantastic week in Vienna! Booth 91 was busy from start to finish, and we wanted to put together a short highlight video to share some of what happened —...
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Crazyflies: An Unlikely Tool for Subscale Urban Air Mobility Research
When people think of Urban Air Mobility (UAM), they might think of large, futuristic eVTOL aircraft carrying people between skyscrapers, not a 30-g nano-quadrotor fitting in the palm of their hand....
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Controlling Crazyflies with a Magic Wand
Some Fun-Friday projects begin with a clear goal and a straight path to the finish line. The best ones, however, take you somewhere completely unexpected. This project originally set out to build a...
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crazyflie-demos: a new home for Crazyflie examples
If you’ve ever gone looking for a more advanced, or use-case-specific Crazyflie example (something beyond the basic single-feature ones), you’ve probably ended up digging through the cflib and...
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Bitcraze at ICRA 2026: A Reproducible Testbed for Aerial Robotics Research
It’s that time of year again! ICRA 2026 (IEEE International Conference on Robotics & Automation) is just around the corner, and this year we’re heading to Vienna. We couldn’t be more excited about...
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Release 2026.04
We’re happy to announce that release 2026.04 is now available. This update introduces a dedicated CRTP port for the supervisor subsystem and a radio startup gate for more reliable early connections,...
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Embedded development with AI agents: trying it on the Crazyflie
AI coding agents have become increasingly useful lately. The main reason, as far as I can understand, is that agents like Claude Code can close the loop: they can produce code, test it, and iterate....
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Turning a Crazyflie into a ground robot
At Bitcraze, we spend a lot of time making things fly. Even though flying robots are, and will always be, fascinating to watch , every now and then it’s refreshing to try something different. Last...
View ArticleFun Friday Project: Play music on your Crazyflie
During my first Fun Friday as a Bitcraze intern in 2021, I discovered the musical note definitions in the Crazyflie firmware and thought about creating a musical performance using the Crazyflie’s...
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