Control board for multi- (Tricopters, Quadcopters, Hexcopters etc) so as to stabilize the during .High performance,easy and convenient to use.Updated to an incredibly sensitive 6050 MPU system making this the most stable board ever and allowing for the addition of an auto-level function.Uses signals from your radio receiver () and passes these signals to the Atmega644PA IC via the aileron, elevator, throttle and rudder inputs. this information has been processed the IC will send varying signals to the ESCs which in turn adjust the rotational speed of each motor to induce controlled (up, down, backwards, forwards, left, right, yaw).type: Flight Controller BoardBuilt-in :DualcopterTricopterY6Quadcopter +Quadcopter XHexcopter +Hexcopter XOctocopter +Octocopter XX8 +X8 XH8H6V8V6 1S Aileron 2S Aileron WingSinglecopter 2M 2SSinglecopter 1M 4SSize Chart:IC: Atmega644 PAGyro/: 6050MPU Inc.Auto-level: YesInput Voltage: 4.8-6.0VAVR interface: standard 6 pin.Signal from Receiver: 1520us (5 channels)Signal to ESC: 1520usFirmware Version: V1.17S1Colour: GreenMaterial: PCB+Electronic Size: .51x51x12mm/2x2x0.47inchPackage Contents:1 * Controller Board3 * cableOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.