Adding debounce button thingy and dice + button version

arduino/DebounceButton/DebounceButton.ino

@@ -0,0 +1,28 @@
+const unsigned int BUTTON_PIN = 7;
+const unsigned int LED_PIN = 13;
+
+int oldButtonState = LOW;
+int ledState = LOW;
+
+void setup() {
+    pinMode(LED_PIN, OUTPUT);
+    pinMode(BUTTON_PIN, INPUT);
+}
+
+void loop() {
+    const int CURRENT_BUTTON_STATE = digitalRead(BUTTON_PIN);
+
+    if (CURRENT_BUTTON_STATE != oldButtonState &&
+        CURRENT_BUTTON_STATE == HIGH) {
+        if (ledState == LOW) {
+            ledState = HIGH;
+        } else {
+            ledState = LOW;
+        }
+
+        digitalWrite(LED_PIN, ledState);
+        delay(50);
+    }
+
+    oldButtonState = CURRENT_BUTTON_STATE;
+}

arduino/DebounceButton/Makefile

@@ -0,0 +1 @@
+../arduino.mk