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Product Description (Detailed):

Elevate your drone building experience with the KK 2.1.5 Flight Control Board, a highly popular and user-friendly solution for multi-rotor aircraft. Designed for both beginners and experienced hobbyists, this flight controller integrates a precise MPU (Motion Processing Unit), specifically the MPU6050 gyroscope and accelerometer, ensuring exceptional flight stability and accurate attitude sensing. A standout feature is its integrated Multi-Rotor LCD screen and intuitive onboard buttons, allowing for direct configuration and PID adjustments without the need for a PC. This eliminates complex software setups, making KK 2.1.5 setup incredibly straightforward. Powered by an Atmega644PA 8-bit AVR RISC-based microcontroller, the board offers robust performance and supports various multi-rotor layouts including quadcopters, tricopters, and hexacopters. It features standard 6-pin AVR interface for future firmware updates (like the popular Steveis firmware) and provides dedicated voltage sense headers for real-time battery monitoring. The KK 2.1.5 is renowned for its auto-level function and customizable mixer editor, giving you fine-tuned control over your drone's flight characteristics. From calibrating ESCs to setting up receiver inputs (1520us signal), this board simplifies the entire build process, empowering you to achieve stable and responsive flights.

The KK2.1.5 Flight Controller Board is a powerful and beginner-friendly flight control unit designed for multirotor drones including quadcopters, tricopters, and hexacopters. It features an Atmel ATmega644PA processor and an InvenSense 6050MPU MEMS accelerometer/gyroscope for precise orientation and stabilization.

Unlike other controllers, the KK2.1.5 includes an integrated 2.1" LCD screen, allowing users to configure settings, calibrate ESCs, and test sensors without needing a PC or programmer. This makes it perfect for both hobbyists and educational drone projects.

Whether you're building a DIY drone or upgrading an existing one, the KK2.1.5 board delivers responsive, reliable control and real-time tuning through its intuitive interface.

Key Features:

• Built-in 6050MPU accelerometer + gyro sensor

• Powered by Atmel ATmega644PA 8-bit MCU

• Onboard 2.1-inch LCD display for tuning without PC

• Supports Quadcopter, Tricopter, Hexacopter, and Octocopter setups

• Pre-installed firmware for plug-and-play flying

• Easy to calibrate and configure using built-in interface

Technical Specifications:

How to Use:

1. Mount the KK2.1.5 board on your drone's center using vibration dampers or foam tape.

2. Connect ESCs to motor output pins (M1–M4 or M1–M6).

3. Plug receiver channels (Throttle, Aileron, Elevator, Rudder, AUX) into input pins.

4. Power the board using ESC BEC or external 5V source.

5. Use the LCD buttons to access menu: calibrate ESCs, check sensors, set motor layout.

6. Adjust PIDs or flight modes directly from the screen.

Double-check motor order and rotation direction before flight. Always update firmware for enhanced stability and features.

Applications:

• DIY quadcopters and multirotors

• Educational drone kits and UAV learning systems

• FPV drone projects with manual tuning needs

• Hobby-level aircraft with customizable controls

Package Includes:

• 1 × KK2.1.5 Flight Controller Board

• 4 × Mounting spacers or screws