code init

libraries/Button/Button.cpp

@@ -0,0 +1,33 @@
+#include <Arduino.h>
+
+#include <Wire.h>
+
+#include "Button.h"
+
+Button::Button(uint8_t _pin, uint8_t _mode)
+{
+  pin = _pin;
+  mode = _mode;
+}
+
+void Button::begin()
+{
+  if (mode == LOW)
+  {
+    pinMode(pin, INPUT_PULLUP);
+  }
+  else if (mode == HIGH)
+  {
+    pinMode(pin, INPUT);
+  }
+}
+
+void Button::loop(ButtonCallbackFunction callback)
+{
+  if (digitalRead(pin) == mode)
+  {
+    (*callback)();
+    // debounce
+    delay(250);
+  }
+}

libraries/Button/Button.h

@@ -0,0 +1,20 @@
+#ifndef Button_h
+#define Button_h
+
+#include <Arduino.h>
+
+typedef void (*ButtonCallbackFunction)();
+
+class Button
+{
+public:
+  Button(uint8_t _pin, uint8_t _mode);
+  void begin();
+  void loop(ButtonCallbackFunction callback);
+
+private:
+  uint8_t mode;
+  uint8_t pin;
+};
+
+#endif