User`s manual

ROBOT . HEAD to TOE

Product User’s Manual – SD02B

1. INTRODUCTION AND OVERVIEW

1.0 Introduction of SD02B

SD02B is the enhanced version from SD02A. SD02B is designed to drive unipolar or bipolar

stepper motor. The board incorporates most of the components of the typical applications.

With minimum interface, the board is ready to Plug and Play. Simply add in power and a few

push buttons, this driver is ready to drive unipolar or bipolar stepper motor. SD02B will

actually drive stepper motor in bipolar method. However, since unipolar stepper motor can

also be used as bi-polar stepper motor, thus this driver can be used to drive both unipolar and

bipolar stepper motor. This stepper motor driver has been designed with capabilities and

features of:

• New! Now comes with UART interface for easier communication between the user’s

circuit (or PC) and SD02B. By using the new UART control, 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

9 Not familiar with UART communication? Fear not! Sample source code for

UART control is provided in both VB.net and PIC C language.

• Support up to 2A per phase

• Smoother stepper motor rotation with 2/5/10 micro-stepping feature

• Able to drive stepper motor from 3V to 40V.

• 8V to 24V compatible for driver circuit supply voltage

• 5V logic level compatible inputs.

• Maximum speed up to 1000 steps per second or 1KHz pulses

• Enable/Disable pin for low power consumption mode.

• Heat sink with fan for fast thermal release