Initial commit.

src/buttons.cpp

@@ -0,0 +1,46 @@
+#include <Arduino.h>
+#include "buttons.h"
+#include "config.h"
+
+void Buttons::setup() {
+	pinMode(PIN_BTN_VOL_UP, INPUT);
+	pinMode(PIN_BTN_VOL_DOWN, INPUT);
+	pinMode(PIN_BTN_TRACK_NEXT, INPUT);
+	pinMode(PIN_BTN_TRACK_PREV, INPUT);
+}
+
+void Buttons::_debounce() {
+	unsigned long now = millis();
+	_debounce_until = now + DEBOUNCE_MILLIS;
+	if (_debounce_until < now) _debounce_until = now;
+}
+
+void Buttons::loop() {
+	bool vol_up = digitalRead(PIN_BTN_VOL_UP);
+	bool vol_down = digitalRead(PIN_BTN_VOL_DOWN);
+	bool track_next = digitalRead(PIN_BTN_TRACK_NEXT);
+	bool track_prev = digitalRead(PIN_BTN_TRACK_PREV);
+	
+	if (_debounce_until > millis()) {
+		if (vol_up || vol_down || track_next || track_prev) {
+			_debounce();
+		}
+		return;
+	}
+	
+	if (vol_up) {
+		_controller->vol_up();
+	} else if (vol_down) {
+		_controller->vol_down();
+	} else if (track_next) {
+		_controller->track_next();
+	} else if (track_prev) {
+		_controller->track_prev();
+	} else {
+		// If we reach this, no button was pressed and we are not debouncing -> do nothing.
+		return;
+	}
+	
+	// If we reach this, some button was pressed. So enable debouncing.
+	_debounce();
+}

src/controller.cpp

@@ -0,0 +1,17 @@
+#include "controller.h"
+
+void Controller::vol_up() {
+	_player->vol_up();
+}
+
+void Controller::vol_down() {
+	_player->vol_down();
+}
+
+void Controller::track_next() {
+	_player->track_next();
+}
+
+void Controller::track_prev() {
+	_player->track_prev();
+}

src/main.cpp

@@ -0,0 +1,19 @@
+#include <Arduino.h>
+#include "config.h"
+#include "buttons.h"
+#include "controller.h"
+#include "player.h"
+
+Buttons* buttons;
+Controller* controller;
+Player* player;
+
+void setup() {
+	player = new Player();
+	controller = new Controller(player);
+	buttons = new Buttons(controller);
+}
+
+void loop() {
+
+}