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Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-1
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-2
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-3
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-4
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-5
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-1
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-2
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-3
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-4
Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-5

DFRobot micro:Driver: Motor Driver Expansion Board for micro:bit

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SKU: DF-DFR0548
Regular price 15,85 € Sale price 11,10 €
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Guarantee & Return Policy

Effective Date: December 10, 2025

At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.

1. Warranty Policy

A. Standard Limited Warranty (Global & US)

For customers in the United States, Asia, and other non-EU regions:

  • Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.

  • Coverage: This warranty covers defects in material and workmanship under normal use.

  • Resolution: We will repair or replace defective units at no charge.

B. Statutory Rights for EU/UK Customers (EU Compliance)

If you are a consumer residing in the European Union or the UK purchasing from our global site:

  • Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.

  • Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.

C. Warranty Exclusions (Applies to ALL Regions)

Warranty coverage is VOID if the damage is caused by:

  1. Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.

  2. Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.

  3. Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).

  4. Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.

Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.

2. Return & Refund Policy

A. Return Window

  • Standard: You may request a return within 31 days of receiving your order.

B. Refund Conditions & Restocking Fees

To protect against policy abuse, the refund amount is strictly determined by the condition of the returned item.

1. Full Refund (100%)

  • The item is Brand New, Unopened, and Unused.

  • The original packaging is intact and sealed.

  • All accessories are present.

2. Partial Refund (Restocking Fee / Value Depreciation)
If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (for US/Global) or Compensation for Loss of Value (for EU) from the refund amount.
Deductions apply if:

  • Signs of Use: Visible scratches, mounting marks on screw holes, or fingerprints.

  • Damaged Packaging: Original box is torn, written on, or missing.

  • Technical Modification: The device has been soldered, permanently installed, or flashed with unauthorized firmware.

  • Broken Seals: Anti-static bags or security seals have been opened.

Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.

C. Shipping Costs

  • Defective / Wrong Item: OpenELAB covers the return shipping cost.

  • Customer Remorse (Changed Mind / Ordered Wrong Item): The customer is responsible for all return shipping costs to our designated return center (located in the US, Germany, or China, depending on your region). Original shipping fees are non-refundable unless required by local law.

3. Return Process (RMA)

To ensure a smooth return process, please follow these steps:

  1. Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.

  2. RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.

  3. Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).

  4. Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
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Micro:Driver Expansion Board for micro:bit UNIHIKER M10 K10-1

DFRobot micro:Driver: Motor Driver Expansion Board for micro:bit

11,10 €

The Micro:Driver Expansion Board is a versatile motor and servo driver board designed for micro:bit, UNIHIKER M10, and K10. As a comprehensive Micro:Driver Expansion Board solution, it is ideal for educational robotics and DIY smart projects. This motor and servo driver provides 9 GPIO ports from the micro:bit plus 4 motor ports and 8 servo ports, allowing up to 2 stepper motors using multiplexing. The Micro:Driver Expansion Board ensures that your micro:bit projects have all the power they need.

The board uses an I2C-based HR8833 motor driver, supporting a max current of 1.5A, powerful enough to drive N20 and small DC motors. This Micro:Driver Expansion Board minimizes GPIO usage by requiring only 2 I2C pins, leaving other resources available for sensors and modules. The extended GPIO and servo headers on this motor and servo driver follow the Gravity interface, ensuring compatibility with a wide range of DFRobot modules and sensors for your micro:bit applications.

 

Features

  • Micro:Driver Expansion Board is compatible with micro:bit, UNIHIKER M10, K10, and similar controllers

  • Supports 4 DC motors / 2 stepper motors (shared with motor interface) via the motor and servo driver circuitry

  • 8 servo interfaces with 5V power supply on the Micro:Driver Expansion Board

  • Uses I2C communication – saves GPIO resources for the micro:bit

  • Built-in HR8833 motor driver, 1.5A continuous current

  • Compatible with DFRobot Gravity sensors and the Micro:Driver Expansion Board ecosystem

  • Works with educational programming tools (MakeCode, Mind+) for micro:bit

  • USB to DC 2.1 power adapter included with the motor and servo driver

  • Supports 3.5V to 5.5V input via batteries or USB to power the Micro:Driver Expansion Board

 

Technical Specifications

  • Power Input: 3.5V–5.5V (Micro:Driver Expansion Board supply)

  • Motor Driver Chip: HR8833 motor and servo driver

  • Max Continuous Current: 1.5A

  • Digital I/O Ports: 9 (from micro:bit)

  • Servo Ports: 8 × 3-pin (standard) on the Micro:Driver Expansion Board

  • Motor Ports: 4 DC / 2 stepper (multiplexed) for motor and servo driver applications

  • Communication: I2C (saves micro:bit pins)

  • Dimensions: 63 × 58 mm (2.48 × 2.28 in) Micro:Driver Expansion Board

  • Output Voltage: Digital 0V/3.3V, Analog 0–3.3V

 

Application Scenarios

  • STEM and robotics classrooms using the Micro:Driver Expansion Board

  • Mini AI robots with UNIHIKER or micro:bit driven by motor and servo driver

  • Multi-motor controlled vehicles or arms with Micro:Driver Expansion Board

  • Interactive smart devices using Gravity sensors and micro:bit controllers

 

Example Project

Ping Pong Ball Picker – HuskyLens AI Robotic Ball Picker
Build an autonomous robot to collect table tennis balls using the Micro:Driver Expansion Board, servo motors, and vision modules for micro:bit. This motor and servo driver setup is perfect for robotics challenges or AI education demos.

 

Shipping List

  • 1 × Micro:Driver Expansion Board

  • 1 × USB to DC2.1 Converter Cable for motor and servo driver power

 

Reference

Product wiki for Micro:Driver Expansion Board

More Documents for micro:bit motor and servo driver

1. General Shipping Information

  • We provide reliable shipping services with a tracking number for each order.
  • Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
  • Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
  • In-stock orders are usually dispatched within 1 business day after order confirmation.
  • Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
  • If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.

🚀 Need Faster Shipping?

If you require expedited shipping, please contact our customer support team at info@openelab.io for a customized quote based on your destination.

2. Shipping Rates & Options

Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.

2.1 Germany Domestic Shipping

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0.00 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)		 €0.00 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)		 €50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)		 Over €100.00 Free 1-3 Business Days

2.2 Selected EU Countries / Regions

Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.

Shipping Method Order Value Cost Est. Delivery
FedEx Regional Economy €0.00 - €100.00 €7.95 3-5 Business Days
FedEx Regional Economy Over €100.00 Free 3-5 Business Days

EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)		 USPS Ground Advantage €0.00 - €45.00 €4.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0.00 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)		 USPS Ground Advantage €0.00 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.

2.4 International Destinations Outside the EU

For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:

Order Amount Shipping Cost
€0.00 - €300.00 €19.95
Over €300.00 Free

For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.

3. Warehouses & Fulfillment

Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.

3.1 Munich Warehouse

For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.

3.2 Arlington Warehouse

For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.

3.3 Shenzhen Warehouse

For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

4. Inventory, Pre-orders & Split Shipments

  • Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
  • Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
  • Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.

5. Customs, Taxes & Delivery Issues

5.1 Customs and Taxes

For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.

Important Notice for Non-EU Countries:
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.

5.2 Damaged, Delayed, or Lost Parcels

Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.

If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@openelab.io. We will assist you in checking the shipment status with the courier.

5.3 Incorrect Address or Failed Delivery

If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.

6. VAT

For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.