diff --git a/slave/slave/lib/serial.h b/slave/slave/lib/serial.h
--- a/slave/slave/lib/serial.h
+++ b/slave/slave/lib/serial.h
@@ -1,9 +1,14 @@
-/*
- * serial.h
- *
- * Created: 10/25/2012 3:19:42 PM
- *  Author: ethanzonca
- */ 
+/*
+ * Master Firmware: USART Send/Recieve
+ *
+ * Wireless Observational Modular Aerial Network
+ * 
+ * Ethan Zonca
+ * Matthew Kanning
+ * Kyle Ripperger
+ * Matthew Kroening
+ *
+ */
 
 
 #ifndef SERIAL_H_
@@ -20,11 +25,17 @@ void serial1_sendChar( unsigned char byt
 void serial0_setup();
 void serial1_setup();
 
-void serial0_sendString(char* stringPtr);
-void serial1_sendString(char* stringPtr);
+void serial0_sendString(const char* stringPtr);
+void serial1_sendString(const char* stringPtr);
 
-void serial_sendCommand( char moduleID, char sensorID, uint8_t dataLength, char* data );
+unsigned char serial0_readChar();
+uint8_t serial0_hasChar();
+char* serial0_readLine();
+
+void serial_sendCommand( char* data );
 void serial_sendResponseData();
 
+void serial1_ion();
+void serial1_ioff();
 
 #endif /* SERIAL_H_ */
\ No newline at end of file