updated packet size

src/SerialConnection.h

@@ -21,9 +21,9 @@
 class SerialConnection
 {
     private:
-        int serialBufferSize = 1024;
-        char serialBuffer[1024];
-        char serialData[1024] = {0};
+        int serialBufferSize = 512;
+        char serialBuffer[512];
+        char serialData[512] = {0};
 
         const char packetStartMarker = '<';
         const char packetEndMarker = '>';