Moved to ESP32 and added webinterface for PenConfiguration.

Not working and removed:
- AccelStepper: Move to FastAccelStepper for ESP32
- Servo: Changed to ESP32 - check if that is ok
- Serial Comm Interface now at 115200 -> change back to 9600 later

include/EggDuino.h

@@ -2,10 +2,16 @@
 #define EGGDUINO_H
 
 #include <Arduino.h>
+#ifdef ESP32
+#include <ESP32Servo.h>
+#include <WiFi.h>
+#include <WebServer.h>
+#include <SPIFFS.h>
+#else
 #include <Servo.h>
-#include <avr/eeprom.h>
+#endif
 
-#include "AccelStepper.h"
+#include <AccelStepper.h>
 #include "SerialCommand.h"
 #include "button.h"
 
@@ -26,8 +32,12 @@
 
 #define servoPin 4
 
-#define penUpPosEEAddress ((uint16_t *)0)
-#define penDownPosEEAddress ((uint16_t *)2)
+struct ConfigParameter {
+	const char *key;
+	int *value;
+	String description;
+	int defaultValue;
+};
 
 extern AccelStepper rotMotor;
 extern AccelStepper penMotor;
@@ -52,6 +62,9 @@ extern float rotSpeed;
 extern float penSpeed;
 extern boolean motorsEnabled;
 
+extern ConfigParameter configParameters[];
+extern const size_t configParameterCount;
+
 void makeComInterface();
 void initHardware();
 void moveOneStep();
@@ -68,4 +81,12 @@ void prepareMove(uint16_t duration, int penStepsEBB, int rotStepsEBB);
 void storePenUpPosInEE();
 void storePenDownPosInEE();
 
+bool initConfigStore();
+bool loadConfigFromFile();
+bool saveConfigToFile();
+String buildConfigJson();
+bool applyConfigJson(const String &payload, String &errorMessage);
+void startWebInterface();
+void handleWebInterface();
+
 #endif