The Simple Motor Controllers are versatile, general-purpose single-channel motor controllers for brushed, DC motors. Wide operating voltage ranges and the ability to deliver up to several hundred watts in a small form factor make these controllers suitable for many motor control applications. With a variety of supported interfaces—USB for direct connection to a computer, TTL serial and I²C for use with embedded systems, RC hobby servo pulses for use as an RC-controlled electronic speed control (ESC), and analog voltages for use with a potentiometer or analog joystick—and a wide array of configurable settings, these motor controllers make it easy to add basic control of brushed DC motors to a variety of projects. A free configuration utility for Windows simplifies initial setup of the device and allows for in-system testing and monitoring of the controller via USB. The SMC G2 24v12 operates from 6.5 V to 40 V and can deliver a continuous output current of 12 A without a heat sink. Note that 40 V is the absolute maximum for this controller; the maximum recommended operating voltage is 34 V, and the maximum recommended nominal battery voltage is 28 V.

Features:

Simple bidirectional control of one brushed DC motor
Five communication or control options:
- USB interface for direct connection to a PC
- Logic-level (TTL) serial interface for use with a microcontroller
- I²C interface for use with a microcontroller
- Hobby radio control (RC) pulse width interface for direct connection to an RC receiver or RC servo controller
- 0 V to 3.3 V analog voltage interface for direct connection to potentiometers and analog joysticks
Simple configuration and calibration over USB with a free configuration program for Windows
Reverse-voltage protection
Hardware current limiting with a configurable threshold
Additional features:
- Adjustable maximum acceleration and deceleration to limit electrical and mechanical stress on the system
- Adjustable starting speed and maximum speed
- Option to brake or coast when speed is zero
- Optional safety controls to avoid unexpectedly powering the motor
- Input calibration (learning) and adjustable scaling degree for analog and RC signals
- Under-voltage shutoff with hysteresis for use with batteries vulnerable to over-discharging (e.g. LiPo cells)
- Adjustable over-temperature threshold and response
- Adjustable PWM frequency from 1.13 kHz to 22.5 kHz (maximum frequency is ultrasonic, eliminating switching-induced audible motor shaft vibration)
- Error LED linked to a digital ERR output, and connecting the error outputs of multiple controllers together optionally causes all connected controllers to shut down when any one of them experiences an error
- Field-upgradeable firmware
Serial features:
- Controllable from a computer via serial commands sent to the device’s USB virtual serial (COM) port, or via TTL serial through the device’s RX/TX pins
- TTL serial uses 0 V and 3.3 V on TX, accepts 0 V to 5 V on RX
- Supports automatic baud rate detection from 1200 bps to 500 kbps, or can be configured to run at a fixed baud rate
- Supports standard compact and Pololu protocols as well as the Scott Edwards Mini SSC protocol and an ASCII protocol for simple serial control from a terminal program
- Optional serial response delay for communicating with half-duplex controllers such as the Basic Stamp
- Controllers can be easily chained together and to other Pololu serial motor and servo controllers to control hundreds of motors using a single serial line
I²C features:
- Compatible with I²C bus voltage levels from 1.8 V to 5 V
- USB features:
- Full-speed USB interface (12 Mbps)
- Example code in C#, Visual Basic .NET, and Visual C++ is available in the Pololu USB Software Development Kit
RC features:
- 1/4 µs pulse measurement resolution
- Works with RC pulse frequencies from 10 to 333 Hz
- Configurable parameters for determining what constitutes an acceptable RC signal
- Two RC channels allow for single-stick (mixed) motor control, making it easy to use two simple motor controllers in tandem on an RC-controlled differential-drive robot
- RC channels can be used in any mode as limit or kill switches (e.g. use an RC receiver to trigger a kill switch on your autonomous robot)
- Battery elimination circuit (BEC) jumper can power the RC receiver with 5 V or 3.3 V
- Analog features:
- 0.8 mV (12-bit) measurement resolution
- Works with 0 to 3.3 V inputs
- Optional potentiometer/joystick disconnect detection
- Two analog channels allow for single-stick (mixed) motor control, making it easy to use two simple motor controllers in tandem on a joystick-controlled differential-drive robot
- Analog channels can be used in any mode as limit or kill switches

Specifications:

Motor channels: 1
Control interface:
- USB; non-inverted TTL serial; I²C;
- RC servo pulses; analog voltage
Minimum operating voltage: 6.5 V
Maximum operating voltage: 40 V
Continuous output current per channel: 12 A
Maximum PWM frequency: 22.5 kHz
Maximum logic voltage: 3.3 V
Reverse voltage protection?: Y
Version: G2 18v15 (30 V max, 15 A max continuous)

Documents:

Package Includes:

1 x Pololu 1365 / 1364 High-Power Simple Motor Controller G2 24v12

Electrical Specifications
Minimum Operating Voltage	6.5 V
Maximum Operating Voltage	40V
Physical Attributes
Weight	1364-12.5g, 1365-7.5g
Dimensions	1364-2.1″ × 1.1″ × 0.5″, 1365-2.1″ × 1.1″ × 0.42″
Additional Information
Warranty