KK2.1.5 Multi-rotor LCD Flight Control Board

The KK2.1.5 Flight Control Board is a user-friendly and cost-effective flight controller designed for hobbyists building multi-rotor drones. Featuring an Atmel ATmega644PA processor, a built-in 2.1" LCD display, and advanced gyroscope and accelerometer sensors, it provides excellent stability and on-the-field configurability. It supports a wide range of multirotor configurations including quadcopters, tricopters, hexacopters, and octocopters.

**KEY FEATURES:**

• ATmega644PA 8-bit AVR Microcontroller

• Integrated 2.1" LCD Display – For easy setup and tuning without a computer

• Multi-rotor Support – Supports Quad, Tri, Hex, Octo & more

• Auto-Leveling & Self-Stabilizing Modes

• Precise Sensor Suite – With MEMS gyroscope and accelerometer

• On-board piezo buzzer for audible feedback

• Built-in 6-axis stabilization

**SPECIFICATIONS:**

• Microcontroller: Atmel ATmega644PA 8-bit AVR @ 20MHz

• Display: 2.1" Monochrome LCD (8x2 lines)

• Sensors: 6050 MPU – 3-axis Gyro + 3-axis Accelerometer (InvenSense)

• Input Voltage: 4.8V – 6.0V (typically powered by ESC BEC or external UBEC)

• Motor Outputs: 8x PWM Outputs (for ESCs)

• Receiver Input: 6x PWM Channels (from RC receiver)

• Memory: 64KB Flash, 4KB SRAM, 2KB EEPROM

• Signal Interface: PWM for both input and output

• Firmware Upgrade: ISP Header available (for firmware flashing)

• Dimensions: 50mm x 50mm (standard mounting)

• Mounting Holes: 45mm x 45mm (M3 holes)

**SUPPORTED MULTI-ROTOR CONFIGURATIONS:**

• Quadcopters (X, + modes)

• Tricopters

• Hexacopters (flat and co-axial)

• Octocopters

• Dual Copters

• Y6 & V-Tail Setups

• Custom configurations via firmware

**APPLICATIONS:**

• Custom Multirotor Drone Builds

• RC Flight Testing & Tuning

• Autonomous Navigation Projects (with external modules)