Tic T825 USB Multi-Interface Stepper Motor Controller

  • үнэ: 240,000 төг

Tic T825 USB Multi-Interface Stepper Motor Controller (Connectors Soldered)

Pololu item #: 3130

The Tic T825 USB Multi-Interface Stepper Motor Controller makes basic control of a stepper motor easy, with quick configuration over USB using our free software. The controller supports six control interfaces: USB, TTL serial, I²C, analog voltage (potentiometer), quadrature encoder, and hobby radio control (RC). This version incorporates a TI DRV8825 driver and ships with soldered header pins and terminal blocks. It can operate from 8.5 V to 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (or 2.5 A max with sufficient additional cooling).


Size: 1.50″ × 1.05″ × 0.47″
Weight: 8.5 g

General specifications

Model: Tic T825
Motor driver: DRV8825
Control interface: USB; non-inverted TTL serial; I²C;
RC servo pulses; analog voltage; quadrature encoder
Minimum operating voltage: 8.5 V
Maximum operating voltage: 45 V1
Continuous current per phase: 1.5 A2
Maximum current per phase: 2.5 A3
Maximum step rate: 50000 PPS
Microstep resolutions: full, 1/2, 1/4, 1/8, 1/16, and 1/32
Reverse voltage protection?: Y4
Connectors soldered?: Y

Identifying markings

PCB dev codes: tic01a
Other PCB markings: 0J10475


  • 1 – Reverse voltage protection only works up to 40 V.
  • – Without a heat sink or forced air flow.
  • – With sufficient additional cooling.
  • – To -40 V. Connecting supplies over 40 V in reverse can damage the device.


The Tic family of stepper motor controllers makes it easy to add basic control of a bipolar stepper motor to a variety of projects. These versatile, general-purpose modules support six different control 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. They also offer many settings that can be configured using our free configuration utility (for Windows, Linux, and macOS). This software simplifies initial setup of the device and allows for in-system testing and monitoring of the controller via USB (a micro-B USB cable is required to connect the Tic to a computer).

Features and specifications

  • – 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).
  • – Up to six different microstep resolutions:
    • – The Tic T825, Tic T834, and T249 support full step, half step, 1/4 step, 1/8 step, 1/16 step, and 1/32 step
    • – The Tic T500 supports full step, half step, 1/4 step, 1/8 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 limit switch inputs with homing capabilities
  • – Optional kill switch inputs
  • – STEP/DIR outputs for controlling external stepper motor drivers
  • – Connects to a computer through USB via a USB A to Micro-B cable (not included)
  • – Free configuration software available for Windows, Linux, and macOS
  • – Comprehensive user’s guide

Details for item #3130

The Tic T825 is based on the DRV8825 IC from Texas Instruments. It can operate from 8.5 V to 45 V and 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). It has reverse protection for motor power supplies up to 40 V. This version is sold with connectors soldered so no soldering is necessary to use it.

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