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This library can be used with Arduino IDE 1.6.6 (or above) to add one or more joysticks (or gamepads) to the list of HID devices an Arduino Leonardo or Arduino Micro (or any Arduino clone that is based on the ATmega32u4) can support. This library will also work with the Arduino Due, thanks to @Palakis. A complete list of supported boards can be found in the Wiki. This will not work with Arduino IDE 1.6.5 (or below) or with non-32u4 based Arduino devices (e.g. Arduino UNO, Arduino MEGA, etc.).
The joystick or gamepad can have the following features:
Copy the Joystick folder to the Arduino libraries folder. Once the folder has been copied, the Joystick library should appear in the Arduino IDE list of libraries. The examples should also appear in the examples menu in the Arduino IDE.
On Microsoft Windows machines, this is typically %userprofile%\Documents\Arduino\libraries. The deploy.bat file can be executed to install the Joystick folder on Microsoft Windows machines (assuming a default Arduino installation).
On Linux machines, this is typically $HOME/Arduino/libraries. The deploy.sh file can be executed to install the Joystick folder on Linux machines (assuming a default Arduino installation). [Thanks to @Nihlus (Jarl Gullberg) for his help with this.]
The following example Arduino sketch files are included in this library:
JoystickTest - Simple test of the Joystick library. It exercises many of the Joystick library’s functions when pin A0 is grounded.MultipleJoystickTest - Creates 4 Joysticks using the library and exercises the first 16 buttons, the X axis, and the Y axis of each joystick when pin A0 is grounded.JoystickButton - Creates a Joystick and maps pin 9 to button 0 of the joystick, pin 10 to button 1, pin 11 to button 2, and pin 12 to button 3.JoystickKeyboard - Creates a Joystick and a Keyboard. Maps pin 9 to Joystick Button 0, pin 10 to Joystick Button 1, pin 11 to Keyboard key 1, and pin 12 to Keyboard key 2.GamepadExample - Creates a simple Gamepad with an Up, Down, Left, Right, and Fire button.DrivingControllerTest - Creates a Driving Controller and tests 4 buttons, the Steering, Brake, and Accelerator when pin A0 is grounded.FlightControllerTest - Creates a Flight Controller and tests 32 buttons, the X and Y axis, the Throttle, and the Rudder when pin A0 is grounded.HatSwitchTest - Creates a joystick with two hat switches. Grounding pins 4 - 11 cause the hat switches to change position.#include <Joystick.h>
// Create the Joystick
Joystick_ Joystick;
// Constant that maps the phyical pin to the joystick button.
const int pinToButtonMap = 9;
void setup() {
// Initialize Button Pins
pinMode(pinToButtonMap, INPUT_PULLUP);
// Initialize Joystick Library
Joystick.begin();
}
// Last state of the button
int lastButtonState = 0;
void loop() {
// Read pin values
int currentButtonState = !digitalRead(pinToButtonMap);
if (currentButtonState != lastButtonState)
{
Joystick.setButton(0, currentButtonState);
lastButtonState = currentButtonState;
}
delay(50);
}
The following API is available if the Joystick library in included in a sketch file.
Constructor used to initialize and setup the Joystick. The following optional parameters are available:
uint8_t hidReportId - Default: 0x03 - Indicates the joystick's HID report ID. This value must be unique if you are creating multiple instances of Joystick. Do not use 0x01 or 0x02 as they are used by the built-in Arduino Keyboard and Mouse libraries.uint8_t joystickType - Default: JOYSTICK_TYPE_JOYSTICK or 0x04 - Indicates the HID input device type. Supported values:
JOYSTICK_TYPE_JOYSTICK or 0x04 - JoystickJOYSTICK_TYPE_GAMEPAD or 0x05 - GamepadJOYSTICK_TYPE_MULTI_AXIS or 0x08 - Multi-axis Controlleruint8_t buttonCount - Default: 32 - Indicates how many buttons will be available on the joystick.uint8_t hatSwitchCount - Default: 2 - Indicates how many hat switches will be available on the joystick. Range: 0 - 2bool includeXAxis - Default: true - Indicates if the X Axis is available on the joystick.bool includeYAxis - Default: true - Indicates if the Y Axis is available on the joystick.bool includeZAxis - Default: true - Indicates if the Z Axis (in some situations this is the right X Axis) is available on the joystick.bool includeRxAxis - Default: true - Indicates if the X Axis Rotation (in some situations this is the right Y Axis) is available on the joystick.bool includeRyAxis - Default: true - Indicates if the Y Axis Rotation is available on the joystick.bool includeRzAxis - Default: true - Indicates if the Z Axis Rotation is available on the joystick.bool includeRudder - Default: true - Indicates if the Rudder is available on the joystick.bool includeThrottle - Default: true - Indicates if the Throttle is available on the joystick.bool includeAccelerator - Default: true - Indicates if the Accelerator is available on the joystick.bool includeBrake - Default: true - Indicates if the Brake is available on the joystick.bool includeSteering - Default: true - Indicates if the Steering is available on the joystick.The following constants define the default values for the constructor parameters listed above:
JOYSTICK_DEFAULT_REPORT_ID is set to 0x03JOYSTICK_DEFAULT_BUTTON_COUNT is set to 32JOYSTICK_DEFAULT_HATSWITCH_COUNT is set to 2Starts emulating a game controller connected to a computer. By default, all methods update the game controller state immediately. If initAutoSendState is set to false, the Joystick.sendState method must be called to update the game controller state.
Stops the game controller emulation to a connected computer.
Sets the range of values that will be used for the X axis. Default: 0 to 1023
Sets the X axis value. See setXAxisRange for the range.
Sets the range of values that will be used for the Y axis. Default: 0 to 1023
Sets the Y axis value. See setYAxisRange for the range.
Sets the range of values that will be used for the Z axis. Default: 0 to 1023
Sets the Z axis value. See setZAxisRange for the range.
Sets the range of values that will be used for the X axis rotation. Default: 0 to 1023
Sets the X axis rotation value. See setRxAxisRange for the range.
Sets the range of values that will be used for the Y axis rotation. Default: 0 to 1023
Sets the Y axis rotation value. See setRyAxisRange for the range.
Sets the range of values that will be used for the Z axis rotation. Default: 0 to 1023
Sets the Z axis rotation value. See setRzAxisRange for the range.
Sets the range of values that will be used for the Rudder. Default: 0 to 1023
Sets the Rudder value. See setRudderRange for the range.
Sets the range of values that will be used for the Throttle. Default: 0 to 1023
Sets the Throttle value. See setThrottleRange for the range.
Sets the range of values that will be used for the Accelerator. Default: 0 to 1023
Sets the Accelerator value. See setAcceleratorRange for the range.
Sets the range of values that will be used for the Brake. Default: 0 to 1023
Sets the Brake value. See setBrakeRange for the range.
Sets the range of values that will be used for the Steering. Default: 0 to 1023
Sets the Steering value. See setSteeringRange for the range.
Sets the state (0 or 1) of the specified button (range: 0 - (buttonCount - 1)). The button is the 0-based button number (i.e. button #1 is 0, button #2 is 1, etc.). The value is 1 if the button is pressed and 0 if the button is released.
Press the indicated button (range: 0 - (buttonCount - 1)). The button is the 0-based button number (i.e. button #1 is 0, button #2 is 1, etc.).
Release the indicated button (range: 0 - (buttonCount - 1)). The button is the 0-based button number (i.e. button #1 is 0, button #2 is 1, etc.).
Sets the value of the specified hat switch. The hatSwitch is 0-based (i.e. hat switch #1 is 0 and hat switch #2 is 1). The value is from 0° to 360°, but in 45° increments. Any value less than 45° will be rounded down (i.e. 44° is rounded down to 0°, 89° is rounded down to 45°, etc.). Set the value to JOYSTICK_HATSWITCH_RELEASE or -1 to release the hat switch.
Sends the updated joystick state to the host computer. Only needs to be called if AutoSendState is false (see Joystick.begin for more details).
See the Wiki for more details on things like FAQ, supported boards, testing, etc.
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