diff --git a/library.json b/library.json
index d880019..c482425 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
     "name": "SimpleSerialProtocol",
-    "version": "1.2.0",
+    "version": "1.3.0",
     "description": "Easy-to-use serial protocol system for arduino type devices.",
     "keywords": "Serial, Connectivity, USB, Simple",
     "repository":
diff --git a/src/SerialConnection.h b/src/SerialConnection.h
index 1052f46..cab9cc4 100644
--- a/src/SerialConnection.h
+++ b/src/SerialConnection.h
@@ -21,9 +21,9 @@
 class SerialConnection
 {
     private:
-        byte serialBufferSize = 300;
-        char serialBuffer[300];
-        char serialData[300] = {0};
+        int serialBufferSize = 1024;
+        char serialBuffer[1024];
+        char serialData[1024] = {0};
 
         const char packetStartMarker = '<';
         const char packetEndMarker = '>';
@@ -55,20 +55,26 @@ void SerialConnection::init(int serialIndex, unsigned long serialBaud) {
         serialRefrence = &Serial;
     } 
     
+    #ifdef Serial1
     else if (serialIndex == 1) {
         Serial1.begin(serialBaud);
         serialRefrence = &Serial1;
     }
+    #endif
 
+    #ifdef Serial2
     else if (serialIndex == 2) {
         Serial2.begin(serialBaud);
         serialRefrence = &Serial2;
     }
+    #endif
 
+    #ifdef Serial3
     else if (serialIndex == 3) {
         Serial3.begin(serialBaud);
         serialRefrence = &Serial3;
     }
+    #endif
 };
 
 char* SerialConnection::handle() {