Added Updater to automatically perform OTA updates without user interaction.

include/config.sample.h

@@ -1,13 +1,21 @@
 #pragma once
 #include <Arduino.h>
 
+// This is a simple number indicating the version for the HTTP Updater.
+#define OTA_VERSION 1
+// Comment out to prevent automatic updates.
+#define OTA_UPDATE_URL "https://files.schle.nz/esmp3/update.manifest"
+#define OTA_CHECK_INTERVAL 12*60*60*1000 // 12 hours
+
 #define SHOW_DEBUG
 //#define SHOW_TRACE
 #define FTP_DEBUG
 #define DELAY_AFTER_DEBUG_AND_TRACE 0
 
-#define WIFI_SSID "---CHANGEME---"
-#define WIFI_PASS "---CHANGEME---"
+// Here you can define WiFi data to use. But actually, the better way to do
+// this is by using /_wifi.txt on the sd card.
+//#define WIFI_SSID "---CHANGEME---"
+//#define WIFI_PASS "---CHANGEME---"
 
 #define VS1053_SLEEP_DELAY 5000
 #define POSITION_SEND_INTERVAL 5000

include/controller.h

@@ -32,6 +32,7 @@ private:
 	
 	unsigned long _last_rfid_scan_at = 0;
 	unsigned long _last_position_info_at = 0;
+	unsigned long _last_update_check_at = 0;
 	String _serial_buffer = String();
 	String _cmd_queue = "";
 	void _execute_command_ls(String path);

include/updater.h

@@ -0,0 +1,8 @@
+#pragma once
+
+class Updater {
+public:
+	static void run();
+	static bool do_update(int cmd, String url);
+	static void update_spiffs();
+};