Multi Expansion Board for UNIHIKER M10/K10 and micro:bit

The Multi Expansion Board is a versatile expansion module for UNIHIKER K10, UNIHIKER M10, and micro:bit development boards. The board addresses three typical limitations of these platforms: limited I/O pins, lack of mobile power supply, and insufficient motor control. The extensive I/O expansion offers six ports for digital, analog, or OneWire devices, as well as a dedicated ultrasonic sensor interface. An integrated 18650 battery holder with charge and discharge management enables wireless mobile operation.

Recommended Accessories:

• BOSON Sensors
• 5V 2000mA 10W USB Power Supply White
• MicroSD Card
• UNIHIKER K10 AI Single-Board Computer with Touchscreen and Camera
• Li-Ion Battery 3.7V 3200mA NCR18650B 18650 with Flat Pole

Features:

• Extensive I/O expansion with six multifunctional GPIO ports and ultrasonic interface
• Integrated 18650 battery holder with full charge and discharge management
• Four-channel DC motor driver and six battery-powered servo ports
• Separate 5 V I2C connection for power-hungry peripherals like HUSKYLENS
• Brick-compatible M3 mounting holes for easy mechanical integration
• Onboard RGB LEDs and infrared transmitter/receiver for immediate additional functions

Application Examples:

• Mobile robots with UNIHIKER control and autonomous power supply
• Brick vehicles with integrated motor control
• Remote-controlled projects with infrared communication
• AI robots with HUSKYLENS object recognition and servo gripper
• Portable interactive installations with battery operation

Documentation:

• DFRobot Wiki – UNIHIKER Expansion Board

Specifications:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR1216-1
• Operating Voltage: 3.3 V DC
• USB-C Input Voltage: 5 V DC
• Battery Holder: 3.7 V 18650
• GPIO Expansion (3.3 V from Mainboard): 8
• Digital/Analog/OneWire GPIO (3.3 V): 6
• Servo Ports (battery-powered): 6
• I2C Ports (3.3 V): 3
• I2C Port (5 V): 1
• Ultrasonic Port (5 V, Trig-Echo): 1
• DC Motor Terminals: 4
• HY2.0 4-Pin Port: 1 (Power Supply for UNIHIKER M10)
• Onboard RGB LEDs: 2× WS2812
• Onboard IR Transmitter: 1
• Onboard IR Receiver: 1
• Compatibility: UNIHIKER K10, UNIHIKER M10, micro:bit
• Product Dimensions: 65 × 88 mm
• Package Dimensions: 220 × 160 × 45 mm
• Gross Weight: 130 g

Scope of Delivery:

• 1× Multi Expansion Board for UNIHIKER M10/K10 and micro:bit
• 1× Type-C to HY2.0-4P Cable