echo befehl funktioniert

drv/b15f.h

@@ -2,6 +2,20 @@
 #define B15F_h
 
 #include <iostream>
+#include <bits/stdc++.h>
+#include <string>
+#include <fstream>
+#include <cstdlib>
+#include <cstdint>
+
+/*#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <termios.h>*/
+
+#include "driverexception.h"
+
 
 class B15F
 {
@@ -9,10 +23,21 @@ private:
 	B15F(void); // privater Konstruktor
 public:
 	void init(void);
+	bool testConnection(void);
+	void writeByte(uint8_t);
+	uint8_t readByte(void);
+	
 	static B15F& getInstance(void);
 
 private:
+	std::fstream usart; 
+
 	static B15F* instance;
+
+// CONSTANTS
+	const std::string SERIAL_DEVICE = "/dev/ttyUSB0";
+	constexpr static uint8_t MSG_OK = 0xFF;
+	constexpr static uint8_t MSG_FAIL = 0xFE;
 };
 
 #endif // B15F_h