Rework example code, fix bugs and get to compiling state. Also introduce missing logic for the Matrix code to keep track of what column is active.

example/obsolete/basic/Makefile

@@ -0,0 +1,8 @@
+TARGET_BOARD=arduino:avr:uno
+COM_PORT=/dev/ttyACM0
+
+build:
+	arduino-cli compile -b ${TARGET_BOARD}
+
+upload:
+	arduino-cli upload -b ${TARGET_BOARD} -p ${COM_PORT}

example/obsolete/basic/basic.ino

@@ -0,0 +1,34 @@
+// An example sketch using the joystick library.
+// In this example, we have 3 toggle switches and 2 momentary pushbuttons.
+// Each button is configured in a different one of the available behaviors.
+
+#include <Joystick.h>
+
+bool debug = false;
+Joystick joystick(debug);
+
+void setup() {
+  // momentary pushbutton #1
+  joystick.AddButton(9, BUTTON_PASSTHRU);
+
+  // momentary pushbutton #2 - this one will toggle on or off each time it is pushed
+  joystick.AddButton(10, BUTTON_LATCHED_MOMENTARY);
+
+  // a toggle switch that acts like a momentary button - every time it's toggled 'on' it briefly sends
+  // a keypresss
+  joystick.AddButton(11, BUTTON_PULSED);
+
+  // like the above, but it sends its button press when toggled on *and* when toggled off
+  joystick.AddButton(12, BUTTON_PULSED_DOUBLE_ACTION);
+
+  // again, similar to the above, but it sends two *different* button presses - 'on' will be one button, 'off' another.
+  joystick.AddButton(13, BUTTON_PULSED_DOUBLE_ACTION_SPLIT);
+
+  // start up serial communication
+  joystick.Init();
+}
+
+void loop() {
+  // check all the button states and send any changes
+  joystick.Update();
+}