Motoron M3S256 Triple Motor Controller Shield Kit for Arduino
With Connectors, not soldered
Manages up to three motors independently
Offers wide motor supply voltage range: 4.5 to 48 V
Features reverse-voltage protection on motor power supply
Includes command timeout safety feature
The Motoron M3S256 Triple Motor Controller Shield Kit for Arduino (w/ Connectors) is a sophisticated device designed to facilitate the control of DC motors via an Arduino or a compatible board through an I²C interface. This kit is capable of independently managing up to three motors. For projects requiring control over a larger number of motors, multiple shields can be conveniently stacked on the same Arduino.
The Motoron M3S256 shield simplifies the process of controlling up to three bidirectional, brushed DC motors with an Arduino or a compatible board. It is designed to support motor supply voltages ranging from 4.5 V to 48 V and can deliver continuous output currents up to 2 A per motor. The unique feature of this shield is that it does not require any PWM outputs or timers on the Arduino. Instead, it communicates with the Arduino using I²C, requiring only two I/O lines, irrespective of the number of Motorons connected.
This particular version of the Motoron comes as a kit with various connectors included but not soldered in. These connectors include a 1x10 stackable female header, a 1x8 stackable female header, four 2-pin 3, four 2-pin 5mm screw terminal blocks, and a 1x25 breakaway male header.
The Motoron M3S256 boasts a wide range of features and specifications. It offers three motor control channels for independent control of up to three bidirectional brushed DC motors. It has a wide motor supply voltage range and a maximum output current per motor. It also features reverse-voltage protection on the motor power supply, a logic voltage range, and a control interface. Other notable features include optional cyclic redundancy checking (CRC), configurable motion parameters, a command timeout feature, configurable automatic error response, motor power supply (VIN) voltage measurement, and optional pins for powering the Arduino from reverse-protected motor power. The kit also includes two status LEDs, motor direction indicator LEDs, and a comprehensive user’s guide.
Important Note: The command timeout feature is designed to stop motors if the Arduino stops functioning. This is a crucial safety feature to prevent any potential damage or accidents.
1x Motoron M3S256 Triple Motor Controller Shield
1x 1x8 Stackable Female Header
4x 2-pin 3.5 mm Terminal Blocks
4x 2-pin 5 mm Screw Terminal Blocks
1x 1x25 Breakaway Male Header (can be cut or broken into smaller header strips as needed)
The kit contains more parts than can be soldered to the board, offering various assembly options for different applications. Additional connector options can be purchased separately. Wires can also be soldered directly to the board for more compact installations.
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
