diff --git a/UART/circular_buf.h b/UART/circular_buf.h
index 33d820c..22dc139 100644
--- a/UART/circular_buf.h
+++ b/UART/circular_buf.h
@@ -1,18 +1,18 @@
-#ifndef CIRCULAR_BUFFER_H
-#define CIRCULAR_BUFFER_H
-
-#define BUFFER_SIZE 10
-
-typedef struct {
-	int buffer[BUFFER_SIZE];
-	int BufHead;
-	int BufTail;
-} CircularBuffer;
-
-void initializeBuffer(CircularBuffer* cb);
-int BufferEmpty(const CircularBuffer* cb);
-int BufferFull(const CircularBuffer* cb);
-void writeBuffer(CircularBuffer* cb, int value);
-int readBuffer(CircularBuffer* cb);
-
-#endif /* CIRCULAR_BUFFER_H */
+#ifndef CIRCULAR_BUFFER_H
+#define CIRCULAR_BUFFER_H
+
+#define BUFFER_SIZE 32
+
+struct circular_buffer{
+	unsigned char buffer[BUFFER_SIZE];
+	unsigned char buf_head;
+	unsigned char buf_tail;
+};
+
+void initialize_buffer(struct circular_buffer* cb);
+int buffer_empty(const struct circular_buffer* cb);
+int buffer_full(const struct circular_buffer* cb);
+void write_buffer(struct circular_buffer* cb, int value);
+int read_buffer(struct circular_buffer* cb);
+
+#endif /* CIRCULAR_BUFFER_H */