User`s manual

ROBOT . HEAD to TOE

Product User’s Manual – SD02B

5.4.2 Connecting SD02B to Computer

Another concern in controlling stepper motor using a computer is the hard work needed to get

started. However, with SD02B, interfacing with a computer is as easy as 1 2 3. Normally,

user will need to develop a RS232 level shifter for communication to serial port. This

generates extra work. Furthermore, laptop and computer nowadays have phase-out the serial

port and replaced it with USB. With these reasons, an USB to UART converter, UC00A,

have been developed by Cytron Technologies. Simply plug SD02B to UC00A and USB port

of computer (PC or Laptop), install the driver (for the first time only) and it will create a

virtual COM port in your computer and is ready to communicate with SD02B.

User may refer to UC00A User’s Manual for hardware and software installation. So, no extra

work is needed to control SD02B using a computer. And, of cause, you may connect more

than one UC00A to your computer and control more than one SD02B at the same time.

A Graphical User’s Interface (GUI) comes together with the source code is provided for user

to implement stepper motor control using a computer.

a. To begin, users have to choose either *Vin or Vmotor power supply at voltage

selector. Then connect Vmotor and/or *Vin and Gnd to power source. Please refer to

chapter 3, Product Specification and Limitations, for details. Figure below shows that

SD02B is connected to a 12V Sealed Lead-Acid battery and Vmotor is choosen as the

power source.