2. GPS Connector

The GPS connector on-board is a 6-pin, JST SH compatible connector. The

board is designed to interface with either the EM-506 GPS Receiver, or the

connector.

3. LCD Connector

The LCD footprint on the shield is compatible with a male 3-pin JST

connector and can interface with any of our serial LCD screens. The

connection is designed for 5V LCDs, so don’t accidentally plug in a 3.3V

option! The pin order is 5V, GND, and RX/D6 when looking at the shield

straight on.

4. JoyStick

The joystick included on the shield provides a basic user interface for

controlling screen displays or selecting CAN scan settings. The connector

gives 5 basic user options:

•Up

•Down

• Left

• Right

• Click selection

5. microSD Slot

This slot provides the user with the option of storing collected data onto a

microSD card. Data collected can include user input on the joystick, CAN-

Bus information collected, LCD outputs, or general I/O data.

6. Jumpers

There are six jumpers present on the CAN-Bus Shield.

• 6a. SJ1 and SJ2 - These two jumpers allow the user to select

between UART and Software Serial for the GPS unit to communicate

with the Arduino.

• 6b. SJ3 - This allows the user to separate pin 5 on the GPS

• 6c. SJ4, SJ5, and SJ6 - These three jumpers allow the user to select

the DB9 pin configuration between OBD-II and CAN. The jumpers

are defaulted to the OBD-II configuration that matches SparkFun’s

OBD-II to DB9 cable.

Note: Though the pin configuration is labeled as OBD-II, this is

still a CAN-specific device. The jumpers are simply for

configuring the shield to work with other OBD-II/CAN-Bus

cables if necessary.

For reference, here are the configuration options showing which pins are

selected on the DB9 connector for each setting.

Jumper Configurations for DB9 Pins

Bus Lines

CAN Pins

OBD-II Pins

Solder Jumper

CAN-H

Pin 7

Pin 3

SJ4

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