Data Sheet

Tic T825 USB Multi-Interface Stepper

Motor Controller (bottom view).

• Open-loop speed or position control of one bipolar

stepper motor

• A variety of control interfaces:

◦ USB for direct connection to a computer

◦ TTL serial operating at 5 V for use with a

microcontroller

◦ I²C for use with a microcontroller

◦ RC hobby servo pulses for use in an RC

system

◦ Analog voltage for use with a

potentiometer or analog joystick

◦ Quadrature encoder input for use with a rotary encoder dial, allowing full rotation

without limits (not for position feedback)

◦ STEP/DIR inputs for compatibility with existing stepper motor control firmware

• Acceleration and deceleration limiting

• Maximum stepper speed: 50,000 steps per second

• Very slow speeds down to 1 step every 200 seconds (or 1 step every 1428 seconds with

reduced resolution).

• Six different microstep resolutions: full step, half step, 1/4 step, 1/8 step, 1/16 step, and 1/

32 step

• Digitally adjustable current limit

• Optional safety controls to avoid unexpectedly powering the motor

• Input calibration (learning) and adjustable scaling degree for analog and RC signals

• 5 V regulator (no external logic voltage supply needed)

• Optional kill switch inputs

• Connects to a computer through USB via a USB A to Micro-B cable [https://www.pololu.com/

product/2072] (not included)

• Free configuration software available for Windows, Linux, and macOS

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