User`s guide

2. Power input

There are two parallel connection points provided for the 6–13.5V power input. You can install a 3.5mm terminal

block on the large holes to accommodate large wires. You can also install a 1×2 male header on the smaller holes

and plug a battery pack [http://www.pololu.com/catalog/category/54] directly in to it.

3. Motor outputs

You can install two 3.5mm terminal blocks to accommodate your motor leads.

4. User I/O blocks

The AVR user I/O pins are divided in to four blocks. The kit comes with enough 3×4 headers so that you can

choose for each block whether to make its pins female or male. You can also mix the genders together within one

block using the other included headers.

5. Backlight and AREF header

If you want to be able to turn your LCD’s backlight off or use an external voltage reference source, you may want

to solder a 1×2 header on to this location.

6. LCD connector

The pins in the LCD connector area are arranged so that the AVR can control an LCD using the standard 4-bit

HD44780 protocol and optionally power an LCD backlight. On the assembled (non-kit) version of the Orangutan

SVP, we solder a 2×8 shrouded header in to the 16 pins highlighted in the diagram. Then the 16×2 character

LCD with backlight [http://www.pololu.com/catalog/product/772] (included with the assembled version, but not the

kit version) plugs in to the lower 7 rows of the connector, as well as the A and K lines on the other side

of the board. If you have a different kind of LCD, consult its datasheet and the Orangutan SVP Reference

Diagram [http://www.pololu.com/file/download/orangutan_svp_reference_diagram.pdf?file_id=0J244] (82k pdf) to determine

the correct way to connect it.

7. User pushbuttons

The three user pushbuttons can be soldered in at this location.

8. Buzzer

The buzzer can be soldered in at this location.

9. Reset buttons.

A reset pushbutton can be soldered in at this location.

10. SPI/Programming connector

The assembled version comes with a 2×3 shrouded box header soldered in to this location (with the notch pointing

away from the USB connector). This allows you to use an external AVR ISP programmer to program the AVR if

you don’t want to use the integrated programmer for whatever reason. It also provides access to the AVR’s SPI

pins, so you could use this location to connect an SPI device to your Orangutan. A 2×3 female header is provided

for this location.

11. VCC-VUSB jumper

To power the board from USB, install a 1×2 male header at this location and use a blue shorting block to connect

VUSB to VCC. See Section 11 for more information and caveats about using this jumper.

5. Getting Started Page 25 of 41