Button presses made reletive to joystick position
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+182
-38
@@ -1,57 +1,201 @@
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/*************************************
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* arduino-joystick
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* Author: Michel Bats
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* Website: www.batssoft.nl
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*************************************/
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// Libraries
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#include <Arduino.h>
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#include <Keyboard.h>
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// Defines
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#define MAX_WAIT_CYCLES 100 // Maximum loop cycles for nex key press (time in ms = MAX_WAIT_CYCLES * (DELAY_BETWEEN_KEYS *2))
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#define DELAY_BETWEEN_KEYS 5 // Milliseconds between key press/release
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#define X_AXIS_PIN A0 // PIN with the X axis of the joystick
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#define Y_AXIS_PIN A1 // PIN with the Y axis of the joystick
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// Initialize variables
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// Offset values to save the actual 0,0 position of the joystick
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int sensorOffsetX;
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int sensorOffsetY;
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// Position of the joystick when in use
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int sensorValueX;
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int sensorValueY;
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// Variables to set when one of the keys is currently pressed to later on release
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bool pressedKeyLeftArrow = false;
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bool pressedKeyRightArrow = false;
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bool pressedKeyUpArrow = false;
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bool pressedKeyDownArrow = false;
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// Cycle count to wait before next key press
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int waitValueX = 0;
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int waitValueY = 0;
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// Variable to save the new cycle count value to evaluate against the current one
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int waitValueXNew = 0;
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int waitValueYNew = 0;
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long sensorValueX;
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long sensorValueY;
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int pressedKeyLeftArrow = 0;
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int pressedKeyRightArrow = 0;
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int pressedKeyUpArrow = 0;
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int pressedKeyDownArrow = 0;
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void setup() {
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sensorOffsetX = analogRead(A0);
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sensorOffsetY = analogRead(A1);
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// the setup function runs once when you press reset or power the board
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void setup()
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{
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// Read the current position of the joystick to use this as position 0,0
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sensorOffsetX = analogRead(X_AXIS_PIN);
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sensorOffsetY = analogRead(Y_AXIS_PIN);
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// Start the keyboard library
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Keyboard.begin();
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}
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void loop() {
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sensorValueX = analogRead(A0) - sensorOffsetX;
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sensorValueY = analogRead(A1) - sensorOffsetY;
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// the loop function runs over and over again forever
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void loop()
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{
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// Read the current position of the joystick
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sensorValueX = analogRead(X_AXIS_PIN) - sensorOffsetX;
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sensorValueY = analogRead(Y_AXIS_PIN) - sensorOffsetY;
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if (sensorValueX < -100 && pressedKeyLeftArrow == 0) {
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Keyboard.press(0xD8); //KEY_LEFT_ARROW
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pressedKeyLeftArrow = 1;
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} else if (sensorValueX > 100 && pressedKeyRightArrow == 0) {
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Keyboard.press(0xD7); //KEY_RIGHT_ARROW
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pressedKeyRightArrow = 1;
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// Check for movement on the X axis
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// Check if the joystick is moved to the left
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if (sensorValueX < -10)
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{
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// Create a value for the number of cycles to wait before next key press
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waitValueXNew = map(sensorValueX, 0, -sensorOffsetX, MAX_WAIT_CYCLES, 0);
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// If the current cycle wait value is equal to 0 run this if.
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// The contents of this if will immediately run when the joystick is comming from the 0 position on the X axis.
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if (waitValueX == 0)
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{
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// Press the left arrow key
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Keyboard.press(0xD8);
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// Set a variable that the left arrow key is currently pressed
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pressedKeyLeftArrow = true;
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// Update the cycls wait count with the new value
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waitValueX = waitValueXNew;
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}
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// If the current cycle wait count is larger than the new one (happens when the joystick is pushed further outside) run this if
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else if (waitValueX > waitValueXNew)
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{
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// Lower the value to the new value
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waitValueX = waitValueXNew;
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}
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}
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// Check if the joystick is moved to the right
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else if (sensorValueX > 10)
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{
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// Create a value for the number of cycles to wait before next key press
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waitValueXNew = map(sensorValueX, 0, 1023 - sensorOffsetX, MAX_WAIT_CYCLES, 0);
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// If the current cycle wait value is equal to 0 run this if.
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// The contents of this if will immediately run when the joystick is comming from the 0 position on the X axis.
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if (waitValueX == 0)
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{
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// Press the right arrow key
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Keyboard.press(0xD7);
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// Set a variable that the right arrow key is currently pressed
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pressedKeyRightArrow = true;
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// Update the cycls wait count with the new value
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waitValueX = waitValueXNew;
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}
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// If the current cycle wait count is larger than the new one (happens when the joystick is pushed further outside) run this if
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else if (waitValueX > waitValueXNew)
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{
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// Lower the value to the new value
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waitValueX = waitValueXNew;
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}
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}
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else
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{
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// If the joystick is in the center, set th cycle wait count back to 0
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waitValueX = 0;
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}
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if (sensorValueY < -100 && pressedKeyUpArrow == 0) {
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Keyboard.press(0xDA); //KEY_UP_ARROW
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pressedKeyUpArrow = 1;
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} else if (sensorValueY > 100 && pressedKeyDownArrow == 0) {
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Keyboard.press(0xD9); //KEY_DOWN_ARROW
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pressedKeyDownArrow = 1;
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// Check for movement on the Y axis
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// Check if the joystick is moved to the front
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if (sensorValueY < -10)
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{
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// Create a value for the number of cycles to wait before next key press
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waitValueYNew = map(sensorValueY, 0, -sensorOffsetY, MAX_WAIT_CYCLES, 0);
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// If the current cycle wait value is equal to 0 run this if.
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// The contents of this if will immediately run when the joystick is comming from the 0 position on the X axis.
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if (waitValueY == 0)
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{
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// Press the up arrow key
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Keyboard.press(0xDA);
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// Set a variable that the up arrow key is currently pressed
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pressedKeyUpArrow = true;
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// Update the cycls wait count with the new value
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waitValueY = waitValueYNew;
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}
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// If the current cycle wait count is larger than the new one (happens when the joystick is pushed further outside) run this if
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else if (waitValueY > waitValueYNew)
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{
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// Lower the value to the new value
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waitValueY = waitValueYNew;
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}
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}
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// Check if the joystick is moved to the back
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else if (sensorValueY > 10)
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{
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// Create a value for the number of cycles to wait before next key press
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waitValueYNew = map(sensorValueY, 0, 1023 - sensorOffsetY, MAX_WAIT_CYCLES, 0);
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// If the current cycle wait value is equal to 0 run this if.
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// The contents of this if will immediately run when the joystick is comming from the 0 position on the X axis.
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if (waitValueY == 0)
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{
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// Press the down arrow key
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Keyboard.press(0xD9);
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// Set a variable that the down arrow key is currently pressed
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pressedKeyDownArrow = true;
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// Update the cycls wait count with the new value
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waitValueY = waitValueYNew;
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}
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// If the current cycle wait count is larger than the new one (happens when the joystick is pushed further outside) run this if
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else if (waitValueY > waitValueYNew)
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{
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// Lower the value to the new value
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waitValueY = waitValueYNew;
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}
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}
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else
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{
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// If the joystick is in the center, set th cycle wait count back to 0
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waitValueY = 0;
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}
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if (sensorValueX > -100 && pressedKeyLeftArrow == 1) {
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Keyboard.release(0xD8); //KEY_LEFT_ARROW
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pressedKeyLeftArrow = 0;
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} else if (sensorValueX < 100 && pressedKeyRightArrow == 1) {
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Keyboard.release(0xD7); //KEY_RIGHT_ARROW
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pressedKeyRightArrow = 0;
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// Time to wait before keys will be released (if needed)
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delay(DELAY_BETWEEN_KEYS);
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// Release left arrow key if pressed
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if (pressedKeyLeftArrow == true)
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{
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Keyboard.release(0xD8);
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pressedKeyLeftArrow = false;
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}
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// Release right arrow key if pressed
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if (pressedKeyRightArrow == true)
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{
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Keyboard.release(0xD7);
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pressedKeyRightArrow = false;
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}
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// Release up arrow key if pressed
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if (pressedKeyUpArrow == true)
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{
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Keyboard.release(0xDA);
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pressedKeyUpArrow = false;
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}
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// Release down arrow key if pressed
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if (pressedKeyDownArrow == true)
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{
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Keyboard.release(0xD9);
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pressedKeyDownArrow = false;
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}
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if (sensorValueY > -100 && pressedKeyUpArrow == 1) {
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Keyboard.release(0xDA); //KEY_UP_ARROW
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pressedKeyUpArrow = 0;
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} else if (sensorValueY < 100 && pressedKeyDownArrow == 1) {
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Keyboard.release(0xD9); //KEY_DOWN_ARROW
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pressedKeyDownArrow = 0;
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// Lower the wait cycles for the X axis if not lower than 0
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if (waitValueX > 0)
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{
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waitValueX--;
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}
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// Lower the wait cycles for the Y axis if not lower than 0
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if (waitValueY > 0)
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{
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waitValueY--;
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}
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// Time to wait for the nex cycle and next possible key press
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delay(DELAY_BETWEEN_KEYS);
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}
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