Added .ino file

nunchuck_mouse.ino

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+/*
+ * AUTHOR: Thomas Ballantine
+ * Website: thomasballantine.com
+ * Licence: GNU Lesser General Public License v3.0
+ * Created: 19/05/2023
+ * 
+ * A program to enable usage of a Nintendo Wii Nunchuk as a computer mouse
+ * All design and test carried out using an MKR1000 and 2 nunchuks, one genuine, 
+ * one fake, on Arduino IDE 1.8.19
+ * For SAMD usage, roll back to Arduino SAMD boards 1.6.21 in board manager as per 
+ * https://github.com/arduino/ArduinoCore-samd/issues/423
+ * 
+ * Inspiration:
+ * https://www.raphnet.net/electronique/wusbmote/index_en.php
+ * 
+ * Please get in touch if you make this spaghetti work better
+ * At present all values are hard coded, adjust as necessary for your needs
+ * 
+ * TODO: Implement proper scrolling. Perhaps use accelerometer?
+ */
+
+
+
+#include <WiiChuck.h> //Can be found in Library manager
+#include <Mouse.h> //Arduino builtin library
+int mouse_x_axis = 0;
+int mouse_y_axis = 0;
+int flag_1 = 0;
+int flag_z = 0;
+int flag_c = 0;
+//https://github.com/arduino/ArduinoCore-samd/issues/423 Must use Arduino SAMD boards 1.6.21 to compile
+Accessory nunchuck;
+
+void setup() {
+  Mouse.begin();
+  nunchuck.begin();
+  if (nunchuck.type == Unknown) {
+    nunchuck.type = NUNCHUCK;
+  }
+  
+}
+
+void loop() {
+  nunchuck.readData();    // Read inputs
+
+// Determining mouse movement amounts from joystick values
+//Only 2 levels of speed here, nunchuk doesn't have great sensitivity
+  if (nunchuck.getJoyX() > 140) mouse_x_axis = 1;
+  if (nunchuck.getJoyX() > 170) mouse_x_axis = 3;
+  if (nunchuck.getJoyX() < 116) mouse_x_axis = -3;
+  if (nunchuck.getJoyX() < 88) mouse_x_axis = -1;
+  if (nunchuck.getJoyY() > 140) mouse_y_axis = -1;
+  if (nunchuck.getJoyY() > 170) mouse_y_axis = -3;
+  if (nunchuck.getJoyX() < 116) mouse_y_axis = 1;
+  if (nunchuck.getJoyY() < 88) mouse_y_axis = 3;
+
+
+
+
+//Lots of ifs here, to set and unset the press/release flags
+//Works much smoother than when it was using the mouse.click() method
+  if (nunchuck.getButtonZ() == 1 && nunchuck.getButtonC() == 0){
+    Mouse.press(MOUSE_RIGHT);
+    flag_z = 1;
+    if (flag_1 == 1){
+      Mouse.release(MOUSE_MIDDLE);
+      flag_1 = 0;
+    }
+    if (flag_c == 1){
+      Mouse.release();
+      flag_c = 0;
+    }
+  }
+
+  
+  if (nunchuck.getButtonC() == 1 && nunchuck.getButtonZ() == 0){
+    Mouse.press();
+    flag_c = 1;
+    if (flag_1 == 1){
+      Mouse.release(MOUSE_MIDDLE);
+      flag_1 = 0;
+    }
+    if (flag_z == 1){
+      Mouse.release(MOUSE_RIGHT);
+      flag_z = 0;
+    }
+  }
+
+  
+  if (nunchuck.getButtonC() == 1 && nunchuck.getButtonZ() == 1){
+    Mouse.press(MOUSE_MIDDLE);
+    flag_1 = 1;
+    if (flag_z == 1){
+      Mouse.release(MOUSE_RIGHT);
+      flag_z = 0;
+    }
+    if (flag_c == 1){
+      Mouse.release();
+      flag_c = 0;
+    }
+
+  }
+
+  if (nunchuck.getButtonC() == 0 && nunchuck.getButtonZ() == 0){
+    if (flag_1 == 1){
+      Mouse.release(MOUSE_MIDDLE);
+      flag_1 = 0;
+    }
+    if (flag_c == 1){
+      Mouse.release();
+      flag_c = 0;
+    }
+    if (flag_z == 1){
+      Mouse.release(MOUSE_RIGHT);
+      flag_z = 0;
+    }
+  }
+
+
+  
+  Mouse.move(mouse_x_axis, mouse_y_axis,0); //sending mouse movement data
+  mouse_x_axis = 0; //resetting the mouse movements
+  mouse_y_axis = 0;
+  delay(5); // polling at about 200Hz, plenty fast enough for anyone
+}