Connects to the PC serial port and provides an easy to use interface for connecting and controlling stepper motors by your PC.
You can connect up to four Leadshine Micro-stepping drives, QK187 Bipolar Chopper Drive, or QK179 Unipolar Stepper Motor Drivers to the card using their step and direction signals.
You can multi-drop up to 4 interface cards off the 1 RS232 serial line so you can control up to a total of 16 stepper motors.

You simply write ascii commands through the PC's serial port to the card to control each of the stepper motors.
A free PC program (source code in VB is included) is provided so that you can execute a number of commands and repeat the process

Examples of the commands are

@01 AMOV 1000 2000 n 4000 do an absolute move of stepper 1,2 and 4 to positions 1000, 2000 and 4000 @01 AMOV 2000 do an absolute move of stepper 1 to position 2000 @02 RMOV -400 do a relative move of stepper 2 400 steps backwards @03 POSN 10000 indicate stepper 3 is at position 1000 @04 STOP stop stepper 4 @01 STAT card sends the status of motors 1 to 4 whether they are moving or not and status of limit switches.

Please note these are not G-Code commands and it will not accept G-Code

Positions can be between -99999999 and 99999999 steps.
The user can also set the acceleration and deceleration rates when starting and ending a sequence of steps.
Limit switch inputs are available for each of the motors to prevent motors moving out of range.
Jan 06 - Two new commands can turn on and off a direction signal on the board for a specified time. For example the user could control two stepper motors for a telescope and using the commands switch on and off a relay for a specified time to operate a camera shutter.
Nov 06 - Faster Stepping rates, Alternate Acceleration Curve, Saving of parameters to EEPROM, Serial Response on completion of Move and XOR Checksum Options Added
Sep 07 - Simultaneous Motor Control Added - Control all four motors simultaneously, no more frustration of having one motor start moving before the other.
Sep 08 - Added 2 Relays to allow you to switch on and off lights, DC motors, valves etc
Dec 08 - Faster Stepping rates up to 29000 Steps/sec

Finished Dimensions (mm): 78Wx92Lx25H

Free PC program vbSerialStepper (source code in VB is included) is now provided on CD so that you can execute a number of commands and repeat the process