Data Sheet

1. Overview
The Tic stepper motor controllers are a family of versatile, general-purpose modules designed to
control one bipolar stepper motor [https://www.pololu.com/category/87/stepper-motors]. With a variety of
supported interfaces–USB for direct connection to a computer, TTL serial and I²C for use with a
microcontroller, RC hobby servo pulses for use in an RC system, analog voltages for use with a
potentiometer or analog joystick, and quadrature encoder for use with a rotary encoder dial–and a
wide array of configurable settings, the Tic controllers make it easy to add basic control of a bipolar
stepper motor to a variety of projects. A free configuration utility (for Windows, Linux, and macOS)
simplifies initial setup of the device and allows for in-system testing and monitoring of the controller via
USB.
The Tic T825, shown above, is based on the DRV8825 IC from Texas Instruments. It can operate from
8.5 V to 45 V and features reverse-voltage protection up to 40 V. It can deliver up to approximately
1.5 A per phase without a heat sink or forced air flow (absolute maximum is 2.5 A per phase). The Tic
T825’s circuit board is blue with white labels.
Tic Stepper Motor Controller User’s Guide © 2001–2018 Pololu Corporation
1. Overview Page 3 of 150