Cytron Stepper Motor Driver 2 Amp

SD02C is designed to drive unipolar or bipolar stepper motor, up to 1.8 Amp peak.


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SD02C is designed to drive unipolar or bipolar stepper motor, up to 1.8 Amp peak. The board incorporates most of the components for typical stepper motor applications.

Stepper motors are popular with machine builders. Most of CNC, 3D printer and servo uses stepper motor due to its stepping and torque properties. But the control is not as easy as DC brush motor where you can simply apply power to it. The stepper motor will require a correct sequence of the drive to rotate it.
With SD02C, you just need a minimum interface, the board is ready to be Plug and Use. Simply add in power and a stepper motor, this driver is ready to drive the motor. The on board test button will help to verify the connection. Pressing the button will drive the stepper motor in a direction with medium speed.
Besides accepting the stepper driver conventional control signal (EN, DIR, and Pulse), there is an additional control option, UART or serial. With the UART interface, it can be controlled from computer via USB to Serial bridge such as UC00A. We have even had a GUI in VB for you to test it.
SD02C is actually driving stepper motor in the bipolar method. However, since the unipolar (6-lead type) stepper motor can also be used as the bi-polar stepper motor, thus this driver can be used to drive both unipolar and bipolar stepper motor.
  • Support up to 1.8A (peak) per phase, 1A (continuous) per phase.
  • Microstepping:
    • Selectable via on-board DIP switch
    • 1, 2, 4 and 8 micro stepping
  • Able to drive stepper motor from 6V to 20V
  • Single power source operation
  • 5V logic level compatible inputs
  • Control input: Conventional: EN, DIR, PULSES; UART; Test button.
  • Maximum speed up to 1kHz of pulses (also depends on stepper motor’s performance)
  • Bi-directional control
  • Enable/Disable pin for low power consumption mode.
  • No heatsink or fan required.
  • Comes with UART (serial) interface, control from computer is possible
  • UART baud rate is saved in the non-volatile flash memory (Factory default is baud rate = 9600)
  • By using the UART interface, user can:
    • On/Off, Run/Brake, and change motor’s rotation direction
    • Set motor speed
    • Request for encoder value
    • Track an encoder value and brake the motor
    • Set new baud rate for the driver
    • Sample source code for UART control is provided!
Dimension: 7.4 cm x 6.6 cm

Additional information

Weight 50 kg