Refactor SerialCommand to support Stream interface and improve command handling

- Added readSerial(Stream &stream) method to allow reading from any Stream-compatible transport.
- Introduced readChar(char inChar) method for processing individual characters.
- Updated command matching logic to enhance debugging output.
- Improved buffer handling and command execution flow.

Enhance platformio.ini for better compatibility and added libraries

- Added NimBLE-Arduino and WebSockets libraries for BLE and WiFi support.
- Updated upload and monitor ports for better compatibility with macOS.

Integrate WiFi and BLE protocol interfaces

- Implemented startWebInterface() to initialize WiFi protocol alongside existing web server.
- Added BLE support with a new EggBot BLE Serial Protocol for command handling over BLE.
- Created WebSocket server for WiFi communication, maintaining compatibility with existing command protocols.

Refactor command handling in Functions.cpp

- Replaced direct Serial.print calls with protocolWrite for consistent output handling.
- Updated command registration to use a lambda function for better readability and maintainability.

Add documentation for EggBot protocols

- Created separate markdown files for BLE, WiFi, and Serial protocols detailing command structures and usage.
- Provided examples of command transactions for better developer guidance.

Implement BLE and WiFi protocol handling in respective source files

- Developed BLE_Interface.cpp for managing BLE connections and data transmission.
- Created WiFi_Protocol.cpp for handling WebSocket communication and data reception.

src/main.cpp

@@ -36,6 +36,16 @@ FastAccelStepper *g_pStepperPen = NULL;
 // make Objects
 Servo penServo;
 SerialCommand SCmd;
+#ifdef ESP32
+SerialCommand g_BLECmd;
+SerialCommand g_WifiCmd;
+#endif
+
+namespace
+{
+SerialCommand *g_pActiveParser = &SCmd;
+ProtocolTransport g_activeTransport = PROTOCOL_TRANSPORT_SERIAL;
+}
 
 // create Buttons
 #ifdef prgButton
@@ -63,6 +73,52 @@ float fROT_STEP_CORRECTION = 16.0 / rotMicrostep; // devide EBB-Coordinates by t
 float fPEN_STEP_CORRECTION = 16.0 / penMicrostep; // devide EBB-Coordinates by this factor to get EGGduino-Steps
 boolean g_bMotorsEnabled = 0;
 
+void setActiveProtocolContext(SerialCommand *parser, ProtocolTransport transport)
+{
+	if (parser != NULL)
+	{
+		g_pActiveParser = parser;
+	}
+	g_activeTransport = transport;
+}
+
+char *nextCommandArg()
+{
+	return g_pActiveParser->next();
+}
+
+void protocolWrite(const char *message)
+{
+	if (message == NULL)
+	{
+		return;
+	}
+
+#ifdef ESP32
+	if (g_activeTransport == PROTOCOL_TRANSPORT_BLE)
+	{
+		if (bleProtocolWrite(message))
+		{
+			return;
+		}
+	}
+	if (g_activeTransport == PROTOCOL_TRANSPORT_WIFI)
+	{
+		if (wifiProtocolWrite(message))
+		{
+			return;
+		}
+	}
+#endif
+
+	Serial.print(message);
+}
+
+void protocolWrite(const String &message)
+{
+	protocolWrite(message.c_str());
+}
+
 // Stepper Test
 #ifdef TEST
 // #define dirPinStepper 16
@@ -77,6 +133,7 @@ void setup()
 	Log("Starting...");
 	makeComInterface();
 	initHardware();
+	startBleInterface();
 	startWebInterface();
 }
 
@@ -134,8 +191,11 @@ void loop()
 	}
 #else
 	// moveOneStep();
+	setActiveProtocolContext(&SCmd, PROTOCOL_TRANSPORT_SERIAL);
 	SCmd.readSerial();
+	handleBleInterface();
 	handleWebInterface();
+	handleWifiProtocolInterface();
 #endif
 
 #ifdef penToggleButton