vsTerminus · May 18, 2021 06:53 · May 18, 2021
diff --git a/MegaShifter.ino b/MegaShifter.ino
@@ -0,0 +1,51 @@
+// Ground digital pins 2 and 3 to press joystick buttons 0 and 1
+//
+// Based on the "Simple example application that shows how to 
+// read four Arduino digital pins and map them to the USB Joystick library"
+// by Matthew Heironimus
+// 2015-11-20
+//
+// Modified to replace a broken "Mega Shifter" 18-speed shift knob controller
+// by vsTerminus
+// 2021-05-18
+//--------------------------------------------------------------------
+
+#include <Joystick.h>
+
+Joystick_ Joystick(JOYSTICK_DEFAULT_REPORT_ID,JOYSTICK_TYPE_GAMEPAD,
+  2, 0,                 // Button count, Hat switch count
+  false, false, false,  // No X, Y, or Z
+  false, false, false,  // No Rx, Ry, or Rz
+  false, false,         // No rudder or throttle
+  false, false, false); // No accelerator, brake, or steering
+
+void setup() {
+  // Initialize Button Pins
+  pinMode(2, INPUT_PULLUP);
+  pinMode(3, INPUT_PULLUP);
+
+  // Initialize Joystick Library
+  Joystick.begin();
+}
+
+// Last state of the button
+int lastButtonState[2] = {0,0};
+int currentButtonState[2] = {0,0};
+
+void loop() {
+
+  // Read pin values
+  currentButtonState[0] = digitalRead(2);  // Range Select Up presses Button 0
+  currentButtonState[1] = !digitalRead(3); // Splitter Forward presses Button 1
+
+  for (int i = 0; i <= 1; i++)
+  {
+    if (currentButtonState[i] != lastButtonState[i])
+    {
+      Joystick.setButton(i, currentButtonState[i]);
+      lastButtonState[i] = currentButtonState[i];
+    }
+  }
+
+  delay(50);
+}
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