This is a waterbottle-sized heli/mono/uni-copter designed to hover in the air at the spot it's first deployed. As opposed to vectoring the propellers to provide directional motion, the center of mass located in the pendulum is shifted instead.
See the assembly better here: http://a360.co/2um5yMn
This build requires:
1x Arduino Nano
1x Bluetooth Module
1x Accelerometer/gyroscope Module
2x Micro Servos
2x ESC (Motor Controller)
1x 1000Kv contra-rotating motor assembly
1x Li-Po Battery
Your favorite semi-permanent adhesive
A few other 3D printed components.
Designed in Autodesk Fusion 360 with assets from GrabCAD.com