diff --git a/Control/firmware/uart_echo/machine.h b/Control/firmware/uart_echo/machine.h
new file mode 100644
index 0000000..ff8bfa5
--- /dev/null
+++ b/Control/firmware/uart_echo/machine.h
@@ -0,0 +1,21 @@
+/*
+ * machine.h
+ *
+ * Created: 03.03.2019 09:21:56
+ *  Author: Jens
+ */ 
+
+
+#ifndef MACHINE_H_
+#define MACHINE_H_
+
+#if ARDUINO_NANO
+#define F_CPU			(16000000UL)	// MHz
+#else
+#define F_CPU			(18432000UL)	// MHz
+#endif
+
+
+
+
+#endif /* MACHINE_H_ */
\ No newline at end of file
diff --git a/Control/firmware/uart_echo/message.h b/Control/firmware/uart_echo/message.h
new file mode 100644
index 0000000..5c300db
--- /dev/null
+++ b/Control/firmware/uart_echo/message.h
@@ -0,0 +1,27 @@
+/*
+ * message.h
+ *
+ * Created: 02.03.2019 09:30:53
+ *  Author: Jens
+ */ 
+
+
+#ifndef MESSAGE_H_
+#define MESSAGE_H_
+
+typedef enum _eMsgCode
+{
+	NOP = 0,
+	Uart,
+	AdcComplete,
+	Timer,
+
+} MsgCode;
+
+typedef struct _sMsg_t
+{
+	MsgCode code;
+	uint8_t data;		
+} Msg_t;
+
+#endif /* MESSAGE_H_ */
\ No newline at end of file