hello … first project ever!
Hardware: Arduino Leonardo + a few components (buttons, resistors, LED’s, ect)
Description: press one of (lets say 4) buttons and have the board emulate a combination key press such “Ctrl F1”
Want to augment gameplay in much the way a Razer Tartarus but on a platform over the mouse hand
(used for less used functions in an online RPG) (Win 8.1 PC w/ Genaric keyboard, Logitech wireless
mouse, Razer Tartarus)
Problem: When I connect board via USB, and it interferes with real keyboard
Question: Can the Leonardo do this?
Does the implemtation of the Leonardo’s USB override the other keyboard and make it not work right?
is there a better board for this? Adafruit blueboard, teezy, ect?
Any help, Sugestions, Info, ect ? (Thankyou!)
Arduino C program:
The setup is mostly for show … blinking of lights (Works well enough)… Keyboard begin/end are how they are
because I read somewhere that leaving keyboard.begin “on” could cause interference on USB.
did not find a lot on sending non-printing keys like “F1” (wanted to try something like ascii(121) )
/*
Project Mousehole
By: Douglas A. Buck
Hardware: Arduino Leonardo
This program will detect if a button has been pressed and send a
keyboard.press() signal back to host computer to emulate a
predetermined value (HID keyboard emulation).
*/
// Functions declarations
void blink_LED_all();
void led1On();
void led2On();
void led3On();
void led4On();
void all_led_off();
void cycle_led();
void razelDazle();
// Global Constants
const int buttonPin1 = 13; // assign Buttton1 to pin 13 GPIO
const int buttonPin2 = 12; // assign Buttton2 to pin 12 GPIO
const int buttonPin3 = 11; // assign Buttton3 to pin 11 GPIO
const int buttonPin4 = 10; // assign Buttton4 to pin 10 GPIO
const int ledPin1 = 9; // assign LED 1 to pin 9 GPIO
const int ledPin2 = 8; // assign LED 2 to pin 8 GPIO
const int ledPin3 = 7; // assign LED 3 to pin 7 GPIO
const int ledPin4 = 6; // assign LED 4 to pin 6 GPIO
const int fourSecond = 4000; // = 4 seconds
const int oneSecond = 1000; // = 1 second
const int halfSecond = 500; // = 1/2 second
// Global Integers
int button1state = 0; // variable to detect if Button 1 has been pressed
int button2state = 0; // variable to detect if Button 2 has been pressed
int button3state = 0; // variable to detect if Button 3 has been pressed
int button4state = 0; // variable to detect if Button 4 has been pressed
// ------------------------------------------------------------------------------------
void blink_LED_all() // loop to blink all LEDs 4 times
{
int n = 1;
for (n=1; n<5; n++)
{
digitalWrite (ledPin1, HIGH); // turn on led1
digitalWrite (ledPin2, HIGH); // turn on led2
digitalWrite (ledPin3, HIGH); // turn on led3
digitalWrite (ledPin4, HIGH); // turn on led4
delay(oneSecond); // delay 1 sec (1000ms)
digitalWrite (ledPin1, LOW); // turn off led1
digitalWrite (ledPin2, LOW); // turn off led2
digitalWrite (ledPin3, LOW); // turn off led3
digitalWrite (ledPin4, LOW); // turn off led4
delay(oneSecond); // delay 1 sec (1000ms)
}
}
void led1On()
{
digitalWrite (ledPin1, HIGH); // turn on led1
}
void led2On()
{
digitalWrite (ledPin2, HIGH); // turn on led2
}
void led3On()
{
digitalWrite (ledPin3, HIGH); // turn on led3
}
void led4On()
{
digitalWrite (ledPin4, HIGH); // turn on led4
}
void all_led_off() // turn all led's off
{
digitalWrite(ledPin1, LOW); // turn off led1
digitalWrite(ledPin2, LOW); // turn off led2
digitalWrite(ledPin3, LOW); // turn off led3
digitalWrite(ledPin4, LOW); // turn off led4
}
void cycle_led()
{
led1On(); // turn 1 on
delay( halfSecond ); // delay 1/2 sec (250ms)
all_led_off(); // turn 1 off
delay(500);
led2On(); // turn 2 on
delay( halfSecond ); // delay 1/2 sec (250ms)
all_led_off(); // turn 2 off
delay( halfSecond );
led3On(); // turn 3 on
delay( halfSecond ); // delay 1/2 sec (250ms)
all_led_off(); // turn 3 off
delay( halfSecond );
led4On(); // turn 4 on
delay(500); // delay 1/2 sec (250ms)
all_led_off(); // turn 4 off
delay(500);
}
void read_buttons() // poll each button to determined if pressed
{
button1state = digitalRead(buttonPin1);
button2state = digitalRead(buttonPin2);
button3state = digitalRead(buttonPin3);
button4state = digitalRead(buttonPin4);
}
void razelDazle()
{
blink_LED_all();
cycle_led();
cycle_led();
}
// -------------------------------------------------------------------------------------------
void setup()
{
// Setting up LED GPIO Pins for output
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
pinMode(ledPin3, OUTPUT);
pinMode(ledPin4, OUTPUT);
// Setting up Button GPIO Pins for input
pinMode(buttonPin1, INPUT);
pinMode(buttonPin2, INPUT);
pinMode(buttonPin3, INPUT);
pinMode(buttonPin4, INPUT);
// allow Host Computer to Boot
razelDazle(); // Create a LED light show
delay(fourSecond); // delay to allow computer to boot
}
// -------------------------------------------------------------------------------------------
void loop() // put your main code here, to run repeatedly:
{
read_buttons();
if (button1state == HIGH)
{
Keyboard.begin(); // commented out till get Leonardo
all_led_off();
digitalWrite(ledPin1, HIGH); // turns on 1st LED if 1st button pressed
Keyboard.press(KEY_LEFT_CTRL); // this section emulates pressing
Keyboard.press('F1'); // 'Control F1' key combination,
Keyboard.releaseAll(); // when the 1st button is pressed
Keyboard.end(); // commented out till get Leonardo
}
else if (button2state == HIGH)
{
Keyboard.begin();
all_led_off();
digitalWrite(ledPin2, HIGH); // turns on 2nd LED if 2nd button pressed
Keyboard.press(KEY_LEFT_CTRL); // this section emulates pressing
Keyboard.press('F1'); // 'Control F2' key combination,
Keyboard.releaseAll(); // when the 2nd button is pressed
Keyboard.end();
}
else if (button3state == HIGH)
{
Keyboard.begin();
all_led_off();
digitalWrite(ledPin3, HIGH); // turns on 3rd LED if 3rd button pressed
Keyboard.press(KEY_LEFT_CTRL); // this section emulates pressing
Keyboard.press('F1'); // 'Control F3' key combination,
Keyboard.releaseAll(); // when the 3rd button is pressed
Keyboard.end();
}
else if (button4state == HIGH)
{
Keyboard.begin();
all_led_off();
digitalWrite(ledPin4, HIGH); // turns on 4th LED if 4th button pressed
Keyboard.press(KEY_LEFT_CTRL); // this section emulates pressing
Keyboard.press('F1'); // 'Control F4' key combination,
Keyboard.releaseAll(); // when the 4th button is pressed
Keyboard.end();
}
else;
}
Tiyak 