Additional features – Pololu Simple User Manual
Page 4
Note: A
(not included) is required to connect this
controller to a computer.
Additional Features
• Adjustable maximum acceleration and deceleration to limit electrical and mechanical stress on the system.
• Adjustable starting speed, maximum speed, and amount of braking 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 kHz to 22 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.
• USB/Serial features:
◦ Controllable from a computer with native USB, via serial commands sent to the device’s virtual serial
(COM) port, or via TTL serial through the device’s RX/TX pins.
◦ Example code in C#, Visual Basic .NET, and Visual C++ is available in the
◦ Optional CRC error detection to eliminate communication errors caused by noise or software faults.
◦ Optional command timeout (shut off motors if communication ceases).
◦ 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.
Pololu Simple Motor Controller User's Guide
© 2001–2014 Pololu Corporation
1. Overview
Page 4 of 101