Multi Function Expansion Board for UNIHIKER K10 and micro:bit (Power & Motion)

SKU: DFR1216 Brand: DFRobot

Power up UNIHIKER or micro:bit projects with this all-in-one expansion board. Drive 4 DC motors & 6 servos, and add portable power with its 18650 battery...

$29.10 AUD, inc GST

$26.45 AUD, exc GST

Available with a lead time
Expect dispatch between Oct 20 and Oct 22

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 Management

The 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 issues

Integrated 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.

Expansion board with UNIHIKER

Figure: Expansion board with UNIHIKER

Rich I/O & Peripheral Expansion

To 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.

UNIHIKER expansion board with various connected modules

Figure: UNIHIKER expansion board with various connected modules

Compatible with LEGO

Engineered 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.

UNIHIKER board mounted on LEGO bricks

Figure: UNIHIKER board mounted on LEGO bricks

User-Friendly & Protective Design

The 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 DC
GPIO 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) x1
Motor Driver: DC Motor Terminal Block x4
HY2.0 4-pin interface x1 (power for UNIHIKER M10)
Battery Holder: 3.7V 18650
On-board components:
RGB LED (WS2812) x2
IR emitter x1
IR receiver x1
Size: 65*88mm
Weight: 200g

Documents

Product wiki

This product is listed in:

Micro:bit>Accessories

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Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

40 Aruma Place
Cardiff
NSW, 2285
Australia

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