# Motoron M2S24v16 Dual High-Power Motor Controller Shield for Arduino (Connectors Soldered)

**Type:** Product page · **SKU:** POLOLU-5045 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html ([markdown](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html.md))

The Motoron M2S24v16 Dual High-Power Motor Controller Shield for Arduino makes it easy to control two high-power DC motors from an Arduino or...

## Pricing

- **Price:** $149.95 (inc GST) — $136.32 AUD, exc GST
- **Quantity discounts:** 5+ $130.86 (exc GST) · 10+ $126.77 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 24 and Aug 26.

## Description

The Motoron M2S family of dual high-power motor controller shields makes it easy to independently control two bidirectional, brushed DC [motors](https://core-electronics.com.au/components/motors/metal-gearmotors.html) with an [Arduino](https://core-electronics.com.au/arduino-uno-r3-10900.html) or compatible board, such as the [A-Star 32U4 Prime](https://core-electronics.com.au/search/?q=a-star+32u4+prime). Unlike most of Pololu's [motor drivers](https://core-electronics.com.au/breakout-boards-and-modules/motor-drivers-controllers/brushed-dc-motor-drivers.html) and motor driver [shields](https://core-electronics.com.au/category/113/shields-for-arduino), the Motoron does not require any PWM outputs or timers on your Arduino. Instead, the Arduino communicates with the Motoron using I²C, so only two I/O lines are needed. Four types are available so you can pick the one with the appropriate operating voltage range and output current capabilities for your project:

|  | [![](https://core-electronics.com.au/attachments/localcontent/0J11723_513556771e.jpg) Motoron M2S18v20 Dual High-Power Motor Controller Shield for Arduino](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11708_5157f41dc0.jpg) Motoron M2S18v18 Dual High-Power Motor Controller Shield for Arduino](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11724_5067aba0d8.jpg) Motoron M2S24v16 Dual High-Power Motor Controller Shield for Arduino](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11709_53087bff09.jpg) Motoron M2S24v14 Dual High-Power Motor Controller Shield for Arduino](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) |
|---|---|---|---|---|
| Absolute max input voltage: | 30 V | 40 V |
| Max nominal battery voltage: | 18 V | 28 V |
| Max continuous current per channel: | 20 A | 18 A | 16 A | 14 A |
| Available versions: | - [assembled](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) | - [assembled](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) | - [assembled](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) | - [assembled](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) |

Each of the four types above is available in three versions to provide different options for the through-hole connectors: they can be purchased as an assembled product with stackable headers and terminal blocks soldered in, as a kit with connectors included but not soldered in, or as a standalone board without connectors.

| [![](https://core-electronics.com.au/attachments/localcontent/0J11710_4190469e880.jpg)](https://core-electronics.com.au/attachments/localcontent/0J11710_98377e81ce1.png) |
|---|

For a lower-power, lower-cost alternative Arduino shield, please consider the [Motoron M3S256 Triple Motor Controller Shield for Arduino](https://core-electronics.com.au/motoron-m3s256-triple-motor-controller-shield-for-arduino-connectors-soldered.html).

**Details for item #5045**

| \| [![](https://core-electronics.com.au/attachments/localcontent/0J11722_32066289fcf.jpg)](https://core-electronics.com.au/attachments/localcontent/0J11722_67147fcaf2b.jpg) \| \|---\| \| Motoron M2S24v16 Dual High-Power Motor Controller Shield for Arduino (Connectors Soldered). \| | \| [![](https://core-electronics.com.au/attachments/localcontent/0J11717_345218c0b5e.jpg)](https://core-electronics.com.au/attachments/localcontent/0J11717_40853577760.jpg) \| \|---\|---\| \| Motoron M2S shield being controlled by an Arduino Leonardo. \| |
|---|

The **M2S24v16** shield operates from **6.5 V to 40 V** (absolute maximum, not intended for use with 36 V batteries) and can deliver continuous output currents up to **16 A** per motor. The M2S24v16 can be distinguished from other types of M2S shields by its **larger** discrete MOSFETs and the number **100** on top of the tall silver electrolytic capacitors.

This version ships with **soldered stackable headers and terminal blocks**. It is also available as a [kit with connectors included but not soldered in](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-kit-for-arduino.html), or as a [standalone board](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) without connectors.

| [![](https://core-electronics.com.au/attachments/localcontent/0J11726_22486f3aadb.jpg)](https://core-electronics.com.au/attachments/localcontent/0J11726_287260d78a6.jpg) |
|---|
| The terminal blocks on the Motoron M2S high-power motor drivers are taller than the headers, so Pololu should only be installed on the top Motoron in the stack. |

**Terminal block warnings:**
1\) The 5mm blue terminal blocks are rated for up to 16 A, so for higher-current applications Pololu recommend getting an unsoldered version and then soldering thick wires directly to the board.
2\) The included terminal blocks are taller than the headers, so a Motoron M2S shield assembled with 5mm terminal blocks is meant to be used as a standalone board or at the **top** of a shield stack. (Trying to stack multiple shields with terminal blocks can result in short circuits between the stacked terminal blocks.)

| [![](https://core-electronics.com.au/attachments/localcontent/0J11711_4065908346c.jpg)](https://core-electronics.com.au/attachments/localcontent/0J11711_1820974eb51.png) |
|---|
| Motoron M2S Dual High-Power Motor Controller Shield pinout. |

**Features and specifications**

- Two motor control channels allow for independent control of up to two bidirectional brushed DC motors
- Reverse-voltage protection on motor power supply
- Logic voltage range: 3.0 V to 5.5 V
- Control interface: I²C
- I²C clock speed: up to 400 kHz
- Optional cyclic redundancy checking (CRC)
- Configurable motion parameters: 
    - Max acceleration/deceleration forward/reverse
    - Starting speed forward/reverse
    - Direction change delay forward/reverse
- PWM frequency: eight options available from 1 kHz to 80 kHz
- Current sensing
- Configurable hardware current limiting
- Command timeout feature stops motors if the Arduino stops functioning
- Configurable automatic error response
- Motor power supply (VIN) voltage measurement
- Optional pins make it easy to power the Arduino from reverse-protected motor power, either directly or through an [external regulator](https://core-electronics.com.au/components/voltage-regulators.html) (not included)
- Two status LEDs
- Motor direction indicator LEDs
- [Motoron Arduino library](https://github.com/pololu/motoron-arduino) simplifies getting started using the Motoron with an Arduino or compatible controller
- Comprehensive user’s guide

**Real-world power dissipation consideration**

The MOSFETs can handle large current spikes for short durations (e.g. 100 A for a few milliseconds), and the driver’s current chopping will keep the average current under the set limit. The peak ratings are for quick transients (e.g. when a motor is first turned on), and the continuous rating is dependent on various conditions, such as the ambient temperature. PWMing the motor will introduce additional heating proportional to the frequency. The actual current you can deliver will depend on how well you can keep the motor driver cool. The driver’s printed circuit board is designed to draw heat out of the MOSFETs, but performance can be improved by adding a heat sink or air flow. For high-current installations, the motor and power supply wires should also be soldered directly instead of going through the 5mm blue terminal blocks, which are rated for up to 16 A.

**Warning:** This motor driver has no over-temperature shut-off. An over-temperature or over-current condition can cause **permanent damage** to the motor driver. You might consider using either the shield’s current sense or an [external current sensor](https://core-electronics.com.au/acs711ex-current-sensor-carrier-31a-to-31a.html) to monitor your current draw.

This product can get **hot** enough to burn under normal operating conditions. Take care when handling this product and other components connected to it.

**The Motoron family**

The table below lists the members of the Motoron family and shows the key differences among them. Each type is available in three versions to provide different options for the through-hole connectors: they can be purchased as an assembled product with stackable headers and terminal blocks soldered in, as a kit with connectors included but not soldered in, or as a standalone board without connectors.

| Motoron Motor Controllers |
|---|
|  |
|  | [![](https://core-electronics.com.au/attachments/localcontent/0J11626_2962be2656.jpg) M3S256](https://core-electronics.com.au/motoron-m3s256-triple-motor-controller-shield-for-arduino-connectors-soldered.html)  [![](https://core-electronics.com.au/attachments/localcontent/0J11674_3209e6efee.jpg) M3H256](https://core-electronics.com.au/motoron-m3h256-triple-motor-controller-for-raspberry-pi-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11709_53087bff09.jpg) M2S24v14](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html)  [![](https://core-electronics.com.au/attachments/localcontent/0J11749_5640c9f7f0.jpg) M2H24v14](https://core-electronics.com.au/motoron-m2h18v20-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11724_5067aba0d8.jpg) M2S24v16](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html)  [![](https://core-electronics.com.au/attachments/localcontent/0J11751_5485f2f3d2.jpg) M2H24v16](https://core-electronics.com.au/motoron-m2h24v16-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11708_5157f41dc0.jpg) M2S18v18](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html)  [![](https://core-electronics.com.au/attachments/localcontent/0J11748_5610a25f07.jpg) M2H18v18](https://core-electronics.com.au/motoron-m2h18v18-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) | [![](https://core-electronics.com.au/attachments/localcontent/0J11723_513556771e.jpg) M2S18v20](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html)  [![](https://core-electronics.com.au/attachments/localcontent/0J11750_53354ff59d.jpg) M2H18v20](https://core-electronics.com.au/motoron-m2h18v20-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) |
| Motor channels: | triple (3) | dual (2) |
| Max input voltage: | 48 V | 40 V**1** | 30 V**1** |
| Max nominal battery voltage: | 36 V | 28 V | 18 V |
| Max continuous current per channel: | 2 A | 14 A | 16 A | 18 A | 20 A |
| Available versions for Arduino: | **M3S256**- [assembled](https://core-electronics.com.au/motoron-m3s256-triple-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m3s256-triple-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/catalog/product/view/sku/POLOLU-5032) | **M2S24v14**- [assembled](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s24v14-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) | **M2S24v16**- [assembled](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s24v16-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) | **M2S18v18**- [assembled](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s18v18-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) | **M2S18v20**- [assembled](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-for-arduino-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-kit-for-arduino.html) - [board only](https://core-electronics.com.au/motoron-m2s18v20-dual-high-power-motor-controller-shield-for-arduino-no-connectors.html) |
| Available versions for Raspberry Pi: | **M3H256**- [assembled](https://core-electronics.com.au/motoron-m3h256-triple-motor-controller-for-raspberry-pi-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m3h256-triple-motor-controller-kit-for-raspberry-pi.html) - [board only](https://core-electronics.com.au/motoron-m3h256-triple-motor-controller-for-raspberry-pi-no-connectors-or-standoffs.html) | **M2H24v14**- [assembled](https://core-electronics.com.au/motoron-m2h24v14-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2h24v14-dual-high-power-motor-controller-kit-for-raspberry-pi.html) - [board only](https://core-electronics.com.au/motoron-m2h24v14-dual-high-power-motor-controller-for-raspberry-pi-no-connectors-or-standoffs.html) | **M2H24v16**- [assembled](https://core-electronics.com.au/motoron-m2h24v16-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2h24v16-dual-high-power-motor-controller-kit-for-raspberry-pi.html) - [board only](https://core-electronics.com.au/motoron-m2h24v16-dual-high-power-motor-controller-for-raspberry-pi-no-connectors-or-standoffs.html) | **M2H18v18**- [assembled](https://core-electronics.com.au/motoron-m2h18v18-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2h18v18-dual-high-power-motor-controller-kit-for-raspberry-pi.html) - [board only](https://core-electronics.com.au/motoron-m2h18v18-dual-high-power-motor-controller-for-raspberry-pi-no-connectors-or-standoffs.html) | **M2H18v20**- [assembled](https://core-electronics.com.au/motoron-m2h18v20-dual-high-power-motor-controller-for-raspberry-pi-connectors-soldered.html) - [kit](https://core-electronics.com.au/motoron-m2h18v20-dual-high-power-motor-controller-kit-for-raspberry-pi.html) - [board only](https://core-electronics.com.au/motoron-m2h18v20-dual-high-power-motor-controller-for-raspberry-pi-no-connectors-or-standoffs.html) |
|  |
| **1** Absolute maximum. |

**Dimensions**

 | Size: | 2.56" × 2.02" |
|---|---|
| Weight: | 25 g |

**General specifications**

 | Channels: | 2 |
|---|---|
| Model: | Motoron M2S24v16 |
| Control interface: | I²C |
| Minimum operating voltage: | 6.5 V |
| Maximum operating voltage: | 40 V[1](https://core-electronics.com.au/#note1) |
| Continuous output current per channel: | 16 A[2](https://core-electronics.com.au/#note2) |
| Reverse voltage protection?: | Y |
| Connectors soldered?: | Y |

**Identifying markings**

 | PCB dev codes: | mc2s31b |
|---|---|
| Other PCB markings: | 0J13655 |

**Notes:**

1Absolute maximum; higher voltages can permanently destroy the motor drivers. Recommended maximum is approximately 34 V, which leaves a safety margin for ripple voltage on the supply line.2Typical results at room temperature with both channels running at 90% duty cycle. **Documentation and other information**

- ![](https://core-electronics.com.au/attachments/localcontent/0J11628_582262abc3.jpg)**Pololu Motoron Motor Controller User’s Guide ([Printable PDF](https://core-electronics.com.au/attachments/localcontent/motoron_10225fc9a94.pdf))**
    
    User’s manual for the Pololu Motoron Motor Controllers.
 
**File downloads**

- **[Dimension diagram of the Motoron M2S Dual High-Power Motor Controller Shield for Arduino](https://core-electronics.com.au/attachments/localcontent/motoron-m2s-dual-hpmc-shield-for-arduino-dimensions_54505936884.pdf) (545k pdf)**
- **[3D models (STEP) of the Motoron M2S Dual High-Power Motor Controllers for Arduino](https://core-electronics.com.au/attachments/localcontent/motoron-m2s-dual-hpmc-shield-models_58221d2093d.zip) (6MB zip)**
    
    This file contains 3D models (in the step file format) of the Motoron M2S Dual High-Power Motor Controllers for Arduino.
- **Drill guide for the M2S Motoron Dual High-Power Motor Controllers for Arduino (48k dxf)**
    
    This DXF drawing shows the locations of all of the board’s holes.
 
**Recommended links**

- **[Motoron Motor Controller library for Arduino](https://github.com/pololu/motoron-arduino)**

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/P/O/POLOLU-5045-1.jpg)