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Just when we think we have posted our last quadcopter project for a while, a new one pops up that makes us collectively go "Whoa." When we see a project like this, we just can't help but pass it on. Check out the CrazyFlie:
What you see there is not your average quadcopter. It's a custom-built, really, really tiny quadcopter! Weighing in at just over an ounce and 4 inches on each side, this is just about the smallest quadcopter we have ever seen. On board it has a 3-axis accelerometer, two gyros, and a tiny model airplane battery. That means its flight time is about four and a half minutes.
Using a 64-MHz CPU, the CrazyFlie uses the data from the accelerometer and gyroscopes to keep stable flight. If you look closely, you'll see the nRF24L01 24GHz radio transceiver as well. This project comes all the way from Sweden, and is part of the Daedalus Projects, part of the Swedish technology consulting firm Epsilon. Awesome work!