Monday, July 7, 2014

APM Control board For Multi-rotors UAV


Ardupilot Mega 2.x for Multi-rotors UAV from DIY Drones

The ArduPilot Mega 2.x is a complete open source autopilot system, it allows the user to turn any MultiRotor capable of performing programmed GPS missions with waypoints.  The OS / Firmware for the APM 2.x for MultiRotor’s is Arducopter.


Saturday, July 5, 2014

Gimbals of UAVS

UAV Gimbals
A gimbal is a pivoted support that allows the rotation of an object about a single axis. A set of three gimbals, one mounted on the other with orthogonal pivot axes, may be used to allow an object mounted on the innermost gimbal to remain independent of the rotation of its support.  For example, on a ship, the gyroscopes, shipboard compasses stoves, and even drink holders typically use gimbals to keep them upright with respect to the horizon despite the ship's pitching and rolling.
                                       





Gimbal contents from two main items:
Gimbal actuator:
The gimbal was first described by the Greek inventor Philo of Byzantium. Philo described an eight-sided ink pot with an opening on each side, which can be turned so that while any face is on top, a pen can be dipped and inked - yet the ink never runs out through the holes of the other sides. This was done by the suspension of the inkwell at the center, which was mounted on a series of concentric metal rings so that it remained stationary no matter which way the pot is turned.
Gimbal Controller:
it's an electronic board considered with intermediate between controller (man or autonomous) and Gimbal actuator.
Gimbal controller does this by burn a suitable code for controlling Gimbal actuator.


UAV uses Gimbal:
Gimbals are also used to mount everything from small camera lenses to large photographic telescopes.



Thus UAVs can use gimbal if it mount cam to ensure getting all angles of photography.