DFRobot
Multi Function Expansion Board for UNIHIKER K10 and micro:bit (Power and Motion)
· MPN: DFR1216
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micro:bit
Micro:bit Expansion Boards
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Robotics & Motion
Motor Drivers and Controllers
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$34.78
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##Introduction The Multi-function Expansion Board for UNIHIKER is an all-in-one solution designed to unlock the full potential of UNIHIKER K10 projects. It d...
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##Introduction The Multi-function Expansion Board for UNIHIKER is an all-in-one solution designed to unlock the full potential of UNIHIKER K10 projects. It directly addresses common hurdles by integrating a powerful motor driver, a portable power supply system, and extensive I/O expansion onto a single, compact platform. It empowers your creations with a 4-channel DC motor driver, 6 dedicated servo ports, an onboard 18650 battery holder, and LEGO-compatible mounting for ultimate versatility. This expansion board is engineered for building mobile robots, interactive prototypes, and other complex projects that require advanced control and complete mobility. Integrated Robotics Driver & Power ManagementThe expansion board serves as the central hub for robotics projects. It integrates a 4-channel DC motor driver and six servo ports, enabling the simultaneous control of complex mechanical systems. The servo interface utilizes an independent power supply from the battery, ensuring stable performance even under high load. The onboard 18650 battery holder, complete with a charging and discharging circuit and a multi-level power indicator, transforms any project into a portable, untethered device, significantly improving mobility and real-world application potential.Solve power supply issuesIntegrated 18650 battery holder and charging/discharging circuit, eliminating the need for cables and external batteries, while the on-board battery indicator light ensures safe power supply, convenient charging, and long battery life, greatly improving project mobility.Figure: Expansion board with UNIHIKER Rich I/O & Peripheral ExpansionTo overcome the pin limitations of mainboards, this expansion board provides a wealth of additional interfaces while passing through the UNIHIKER's native edge connector. It adds six multi-function I/O pins (supporting Digital, Analog, and 1-Wire), multiple I2C ports (including one 5V port for logic-level compatibility with devices like HUSKYLENS), and a dedicated 5V port for ultrasonic sensors. Furthermore, integrated peripherals such as two programmable RGB LEDs and an IR transmitter/receiver add built-in functionality for status indication and remote control without requiring extra modules.Figure: UNIHIKER expansion board with various connected modulesCompatible with LEGOEngineered for creativity and rapid prototyping, the expansion shield features M3 mounting holes spaced to be perfectly compatible with LEGO® Technic dimensions. This design allows for seamless and sturdy integration into custom mechanical structures, robotics chassis, and educational models. It bridges the gap between electronics and mechanical construction, enabling the creation of sophisticated, custom-built robots and devices.Figure: UNIHIKER board mounted on LEGO bricksUser-Friendly & Protective DesignThe expansion board is designed for clarity and durability. A comprehensive set of status indicators provides real-time feedback on system power, charging status, battery level, and motor direction, simplifying debugging and operation. All interfaces are clearly labeled and color-coded for intuitive connections. For safety, an acrylic base plate is included to prevent short circuits, and all I/O pins are equipped with ESD protection to enhance reliability during development. ##Specification Operating voltage: 3.3V DC USB-C interface input voltage: 5V DCGPIO extension: 3.3V GPIO from main board edge connector x8 3.3V Digital/Analog/OneWire GPIO x6 Servo interface (powered by battery) x6 3.3V I2C x3 5V I2C x1 5V Ultrasonic Sensor (Trig-Echo) x1Motor Driver: DC Motor Terminal Block x4HY2.0 4-pin interface x1 (power for UNIHIKER M10)Battery Holder: 3.7V 18650On-board components: RGB LED (WS2812) x2 IR emitter x1 IR receiver x1Size: 65*88mmWeight: 200g ##Documents Product wiki ##ShippingList UNIHIKER Multi-function Expansion Boardx1
Jargon buster
Plain-language definitions for the technical terms used above.
- 1-Wire
- 1-Wire is a communication method where devices share a single data line, often with each device having its own address. It matters because several temperature modules can be connected to one microcontroller pin instead of needing a separate pin for each probe.
- ESD protection
- ESD protection helps protect electronics from damage caused by static electricity discharges. It is useful on development boards because cables, sensors and modules are often plugged and unplugged during prototyping.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- RGB
- Short for red, green and blue, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
- servo
- A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
- Shield
- An add-on board that plugs into a main controller board to give it extra features such as sensing, motor control or communication. Knowing a product supports shields helps you judge whether it can connect neatly into an existing maker-board setup.
- Terminal block
- A connector used to join wires together in a neat, removable, or serviceable way. For this product, it helps split one power input into several outputs without soldering.
- UNIHIKER
- UNIHIKER is a small programmable computer board used in education and maker projects, often connected to external sensors and modules. Compatibility matters because the cable must match the board’s connector type and pin layout.
- USB-C
- A modern reversible USB connector used for power and data connections. On this product it matters because it can connect directly to a computer as well as to a microcontroller project.
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