Changed static .data strings to PSTR(), removed oom situation

serial.h

@@ -2,27 +2,28 @@
 #define SERIAL_H
 
 #define BAUD 38400
-#define BUFFER_SIZE 1024
+#define BUFFER_SIZE 128
 
 #include <util/setbaud.h>
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <string.h>
 #include <stdlib.h>
+#include <avr/pgmspace.h>
 
-const bool serialFlowControl = false;
 
 class Serial
 {
 private:
     char _terminator = '\n';
-    
+    uint16_t _rxIndex=0;
     
 public:
     Serial();
     void putChar(const char c);
     void write(const char* in, const unsigned int length);
     void write(const char in[]);
+    void write_p(const char in[]);
     void write(const int32_t in);
     bool dataIsWaiting();
     char getChar();