Hardware Components

There are 6 key components to the hardware setup:

A) Portable Skin Stretch Device

Design details about the portable skin stretch device found here: PortableSkinStretchDesign

B) Portable Skin Stretch Motor Driver

C) Power Supply

D) Connector Board

E) Phidgets I/O Board

F) Phidgets Encoder

Connecting Hardware Components Together

Follow these steps to connect all of the hardware components together:

Use the power cable to connect the Connector Board to the Power Supply. On the Power Supply, the positive adjustable voltage should be set to +12v and the negative adjustable voltage should be set to -5v.

Use the motor driver cable to connect the Connector Board to the Skin Stretch Motor Driver

Connect the Phidgets I/O Board to the Connector Board

Use the USB cable to connect the Phidgets I/O Board to a PC

Connect the Phidgets Encoder to the Portable Skin Stretch Device and to a PC

Connect the Portable Skin Stretch Device and to the Portable Skin Stretch Motor Driver

Final Connector Board Schematic and Picture

The schematic file of type [Cadence Allegro Design Entry CIS Orcad] is attached with the name: Cadence_connector_board.opj

Software Setup

We utilize Phidgets hardware and software to control the Portable Skin Stretch Device in this case.

1) Download the Phidgets 21 Installer for the phidgets21.dll and all other necessary API files: http://www.phidgets.com/drivers.php

2) There are programming examples in several languages for using phidgets here: http://www.phidgets.com/programming_resources.php

3) C++ files for controlling the Portable Skin Stretch Device

C++ control file: skin_stretch_control.cpp

Other necessary files:

phidget21.h

stdafx.h

Windows.h

phidget21.lib

stdafx.cpp

4) Matlab files for controlling the Portable Skin Stretch Device

Matlab control file: skin_stretch_control.m

Other necessary files:

phidget21Matlab.h

setMotorSpd.m

plots.m