View difference between Paste ID: aXKY2FjV and vpgkBVFY

 /* Basic USB Joystick Example
    Teensy becomes a USB joystick
 
    You must select Joystick from the "Tools > USB Type" menu
 
    Pushbuttons should be connected to digital pins 0 and 1.
    Wire each button between the digital pin and ground.
    Potentiometers should be connected to analog inputs 0 to 1.
 
    This example code is in the public domain.
 */
 
 void setup() {
   pinMode(0, INPUT_PULLUP);
   pinMode(1, INPUT_PULLUP);
   pinMode(2, INPUT_PULLUP);
   pinMode(3, INPUT_PULLUP);
   pinMode(4, INPUT_PULLUP);
   pinMode(5, INPUT_PULLUP);
   pinMode(6, INPUT_PULLUP);
   pinMode(7, INPUT_PULLUP);
   pinMode(8, INPUT_PULLUP);
   pinMode(9, INPUT_PULLUP);
   pinMode(10, INPUT_PULLUP);
 }
 
 void loop() {
   // read the digital inputs and set the buttons
-  Joystick.button(1, digitalRead(0));
+  Joystick.button(1, !digitalRead(0));
-  Joystick.button(2, digitalRead(1));
+  Joystick.button(2, !digitalRead(1));
-  Joystick.button(3, digitalRead(2));
+  Joystick.button(3, !digitalRead(2));
-  Joystick.button(4, digitalRead(3));
+  Joystick.button(4, !digitalRead(3));
-  Joystick.button(5, digitalRead(4));
+  Joystick.button(5, !digitalRead(4));
-  Joystick.button(6, digitalRead(5));
+  Joystick.button(6, !digitalRead(5));
-  Joystick.button(7, digitalRead(6));
+  Joystick.button(7, !digitalRead(6));
-  Joystick.button(8, digitalRead(7));
+  Joystick.button(8, !digitalRead(7));
-  Joystick.button(9, digitalRead(8));
+  Joystick.button(9, !digitalRead(8));
-  Joystick.button(10, digitalRead(9));
+  Joystick.button(10, !digitalRead(9));
-  Joystick.button(11, digitalRead(10));
+  Joystick.button(11, !digitalRead(10));
 
   delay(20);
 }