Create SimpleJoystickMouse_HID.ino

Add example code from hookup guide

Author: bboyho

Firmware/SimpleJoystickMouse_HID/SimpleJoystickMouse_HID.ino

@@ -0,0 +1,55 @@
+/* HID Joystick Mouse Example
+   by: Jim Lindblom
+   date: 1/12/2012
+   license: MIT License - Feel free to use this code for any purpose.
+   No restrictions. Just keep this license if you go on to use this
+   code in your future endeavors! Reuse and share.
+
+   This is very simplistic code that allows you to turn the 
+   SparkFun Thumb Joystick (http://www.sparkfun.com/products/9032)
+   into an HID Mouse. The select button on the joystick is set up
+   as the mouse left click. 
+ */
+#include <Mouse.h>
+int horzPin = A0;  // Analog output of horizontal joystick pin
+int vertPin = A1;  // Analog output of vertical joystick pin
+int selPin = 9;  // select button pin of joystick
+
+int vertZero, horzZero;  // Stores the initial value of each axis, usually around 512
+int vertValue, horzValue;  // Stores current analog output of each axis
+const int sensitivity = 200;  // Higher sensitivity value = slower mouse, should be <= about 500
+int mouseClickFlag = 0;
+
+void setup()
+{
+  pinMode(horzPin, INPUT);  // Set both analog pins as inputs
+  pinMode(vertPin, INPUT);
+  pinMode(selPin, INPUT);  // set button select pin as input
+  digitalWrite(selPin, HIGH);  // Pull button select pin high
+  delay(1000);  // short delay to let outputs settle
+  vertZero = analogRead(vertPin);  // get the initial values
+  horzZero = analogRead(horzPin);  // Joystick should be in neutral position when reading these
+
+}
+
+void loop()
+{
+  vertValue = analogRead(vertPin) - vertZero;  // read vertical offset
+  horzValue = analogRead(horzPin) - horzZero;  // read horizontal offset
+
+  if (vertValue != 0)
+    Mouse.move(0, vertValue/sensitivity, 0);  // move mouse on y axis
+  if (horzValue != 0)
+    Mouse.move(horzValue/sensitivity, 0, 0);  // move mouse on x axis
+
+  if ((digitalRead(selPin) == 0) && (!mouseClickFlag))  // if the joystick button is pressed
+  {
+    mouseClickFlag = 1;
+    Mouse.press(MOUSE_LEFT);  // click the left button down
+  }
+  else if ((digitalRead(selPin))&&(mouseClickFlag)) // if the joystick button is not pressed
+  {
+    mouseClickFlag = 0;
+    Mouse.release(MOUSE_LEFT);  // release the left button
+  }
+}