The Joystick Shield kit contains all the parts you need to enable your Arduino with a joystick! The shield sits on top of your Arduino and turns it into a simple controller. Five momentary push buttons (4+ joystick select button) and a two-axis thumb joystick gives your Arduino functionality on the level of old Nintendo controllers.

Features

• 2-Axis joystick 
• 4 large buttons
• 2 small buttons
• Bluetooth / Serial interface
• I2C interface
• nRF24L01 interface
• Nokia 5110 LCD interface
• Interface connector
• Power switch to switch between 3.3 V and 5 V

2-Axis Joystick

The X-Axis potentiometer of the joystick is connected to A0. The Y-Axis potentiometer is connected to A1. The joystick also has a button ‘K’ which is activated by pressing the joystick down. This button is connected to D8.

Buttons:

There are a total of 6 buttons on the board (not including the one on the joystick) labeled A-F. The 4 large buttons are typically used for up/down/left/right or similar functions. The two smaller buttons are typically used for less commonly used functions such as ‘select’ or ‘start’ since they are less accessible / less likely to be pressed accidentally. All buttons have pull-up resistors and pull to ground when pressed.

• Button A – Connects to D2
• Button B – Connects to D3
• Button C – Connects to D4
• Button D – Connects to D5
• Button E – Connects to D6
• Button F – Connects to D7

Bluetooth Connector

The RX/TX lines are brought out to a separate 4-pin female header along with 3.3 V and Ground. This can be used for connecting a 4-pin 3.3 V Bluetooth device or a TTL serial device.

I2C Connector

The I2C SDA and SCL lines are brought out to a separate 4-pin male header along with 5V and Ground.  This is in addition to the normal A4/A5 location of these lines.  This allows for easy attachment of I2C devices.

nRF24L01 Connector

This connector allows an nRF24L01 RF transceiver module to be plugged in.

• GND – Ground.
• VCC – 3.3V
• CE – Connects to D9
• CSN – Connects to D10
• SCK – Connects to D13
• MOSI – Connects to D11
• MISO – Connects to D12
• IRQ – No Connection

Nokia 5110 LCD Connector

This female header connector is designed to mount the Nokia 5110 LCD that was originally designed for Nokia phones and provides a 48×84 pixel matrix.

This interface occupies the same D9-D13 pins as the nRF24L01, so you can’t use both at the same time.

Interface Connector

This dual row yellow male header connector provides another point of access to all the buttons, joystick pots, 3.3 V, 5 V and Ground.  The pin-out of this connector is labeled on the board to the left of the connector.

Schematic

Example Code