Parallax VGA-PS/2 User manual

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Copyright © Parallax Inc. VGA-PS/2 Adapter Board Kit (#28075) v1.0 8/20/2009 Page 1 of 3
VGA-PS/2 Adapter Board Kit (#28075)
The VGA-PS/2 Adapter Board Kit makes it easy to add VGA, keyboard and mouse connections to any
breadboard project or prototype. PS/2 type keyboards and mice are supported by this kit as well as
standard VGA monitors. The VGA-PS/2 Adapter Board Kit was designed for use with the Propeller
microcontroller, and the I/O connections are designed to line up with P16 through P27 on the Propeller
chip. When using these I/O pins this board is directly compatible with the Keyboard, Mouse and VGA
objects that are also used with the Propeller Demo Board. These objects are available in the Propeller
Tool Library as well as on the Propeller Object Exchange.
Features
ySIP header makes breadboard connection easy
yStacked connectors take up minimal space
yKit form allows you to customize installation
yAll surface-mount parts are in place; only soldering of
through-hole components is required
Key Specifications
yPower requirements: 5 VDC
yPower consumption: Determined by connected
peripherals
yInterface (VGA): 2-bit DAC VGA signal
yCommunication (PS/2): TTL synchronous serial interface (PS/2 keyboard & mouse)
yOperating temperature: 32 to 158 °F (0 to 70 °C)
yDimensions: 1.50" L x 1.50" W x 1.65" H (38.10mm L x 38.10mm W x 41.92mm H)
Application Ideas
yBreaboard prototyping of projects requiring keyboard/mouse/VGA
yPanel mounting of VGA-PS/2 connectors
Kit Contents
yVGA-PS/2 Adapter Board PCB
yVGA-PS/2 connector assembly
y14-pin SIP male-male header

Copyright © Parallax Inc. VGA-PS/2 Adapter Board Kit (#28075) v1.0 8/20/2009 Page 2 of 3
Assembly Instructions
Step 1:
Locate the VGA-PS/2
connector assembly (left)
VGA-PS/2 Adapter Board
PCB (center) and 14-pin SIP
header (right).
Step 2:
Very carefully install the
connector assembly into the
PCB as shown, taking care to
make sure all pins are
straight. Make sure that none
of the pins were bent
underneath the connector,
but all are properly inserted
into the PCB.
Once the connector is seated
in the PCB you may solder
the connector in place.
Step 3:
Take the 14-pin SIP Header
and solder it in place so that
the pins aim downward. In
this manner the Adapter
Board can be installed easily
into a breadboard.
If you instead planned on
soldering wires, a ribbon
cable or some other
connector you can do that
here instead of using the
included 14-pin SIP Header.

Copyright © Parallax Inc. VGA-PS/2 Adapter Board Kit (#28075) v1.0 8/20/2009 Page 3 of 3
Quick-Start Circuit
Figure 1: Connection Diagram
Connecting and Testing
Connect the pins above to the specified I/O pins on your Propeller Education Kit (#32305 or #32306),
Propeller Proto Board (#32212 or #32812), Propeller Professional Development Board (#32111),
PropRPM Board (#32202) or any other Propeller system. By using the pins listed above you can use the
objects included in the Propeller Tool Library and Object Exchange to test the various peripherals on your
Propeller system.
Downloads and Resources
You can obtain the Propeller Tool software from the Downloads link at http://www.parallax.com/propeller
You can obtain additional objects by visiting the object exchange at: http://obex.parallax.com