KK 2.1.5 Multi-Rotor LCD Flight Control Board

• Model: KK 2.1.5
• IC: Atmega644 PA
• Gyro/ACC.: 6050MPU InvenSense Inc.
• Auto Level: Yes
• Input Voltage: 4.8V-6.0V
• AVR Interface: Standard 6 Pin
• Signal from Receiver: 1520us(5 channels)
• Signal to ESC: 1520us

The KK2.1.5 Multi-Rotor controller is a flight control board for multi-rotor aircrafts (Tricopters, Quadcopters, Hexacopters etc). Its purpose is to stabilize the aircraft during flight and prevent the aircraft from crash landing. 

It takes the signal from the 6050MPU gyro/acc (roll, pitch and yaw) then passes the signal to the Atmega644PA IC, which then processes these signals according the user's selected firmware and passes control signals to the installed Electronic Speed Controllers (ESCs). These signals instruct the ESCs to make fine adjustments to the motors rotational speed which in turn stabilizes your multi-rotor craft.

The KK2.1.5 Multi-Rotor control board also uses signals from radio systems receiver (Rx) and passes these signals to the Atmega644PA IC via the aileron, elevator, throttle and rudder inputs. Once 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 flight.