UPDATE   Our 1st batch of Pixhawk 2.1 arrived and had sold out on pre-orders, we expect our next delivery late December, pre-orders now are for the December batch.
Pixhawk 2.1 is the latest iteration of Pixhawk, which is an independent open-hardware project.
Pixhawk2 supports different kinds of airframes – helicopters, multicopters, planes, quadplanes and more!
An easy firmware update is all it takes to repurpose your hardware into a different role.
Modular flight controller
Reduced integration complexity
Ample I/O for even the most complex airframes
All-in-one design with integrated FMU and IO processors
Vibration-damped IMU board
Increased reliability
The Pixhawk2 Cube has a total of 29 MEMS sensors in it:
3 x 3-axis Accelerometers
3 x 3-axis Gyroscopes
3 x 3-axis Magnetometers
2 x Barometers
It comes 100% RTK GPS ready.
Multiple GPS capability is standard.