diff --git a/simpliciti/Applications/configuration/smpl_config.h b/simpliciti/Applications/configuration/smpl_config.h
index 62de01d..cc11ecd 100644
--- a/simpliciti/Applications/configuration/smpl_config.h
+++ b/simpliciti/Applications/configuration/smpl_config.h
@@ -33,6 +33,8 @@
   contact Texas Instruments Incorporated at www.TI.com.
 **************************************************************************************************/
 
+#include "config.h"
+
 #ifndef SMPL_CONFIG
 #define SMPL_CONFIG
 
@@ -70,7 +72,10 @@
  * necessary below unless the spaces are removed.
  */
 // pfs removed double quotes around {0x79, 0x56, 0x34, 0x12}
+#ifndef THIS_DEVICE_ADDRESS
 #define THIS_DEVICE_ADDRESS  {0x79, 0x56, 0x34, 0x12}
+#warning no hardware adress set
+#endif
 
 /* device type */
 #define END_DEVICE
diff --git a/tools/config.py b/tools/config.py
index 813b502..4459f66 100755
--- a/tools/config.py
+++ b/tools/config.py
@@ -2,9 +2,17 @@
 # encoding: utf-8
 
 import npyscreen
-import re, sys
+import re, sys, random
 #npyscreen.disableColor()
 
+# {0x79, 0x56, 0x34, 0x12}
+def rand_hw():
+    res = ["0xFF"]
+    for i in range(3):
+        res.append(hex(random.randint(0, 255)))
+    return "{" + ",".join(res) + "}"
+
+
 DATA = {
 "CONFIG_FREQUENCY": {
         "name": "Frequency",
@@ -19,6 +27,12 @@ DATA = {
         "default": False
 },
 
+"THIS_DEVICE_ADDRESS": {
+        "name": "Hardware address",
+        "type": "text",
+        "default": rand_hw()
+},
+
 # modules
 
 "CONFIG_ACCEL": {
@@ -68,7 +82,15 @@ DATA = {
 }
 
 
+HEADER = """
+#ifndef _CONFIG_H_
+#define _CONFIG_H_
 
+"""
+
+FOOTER = """
+#endif // _CONFIG_H_
+"""
 
 
 #load_config()
@@ -110,10 +132,15 @@ class OpenChronosApp(npyscreen.NPSApp):
                     value = field["values"].index(field["value"])
                 except ValueError:
                     value = field["values"].index(field["default"])
-                f = F.add(npyscreen.TitleSelectOne, max_height=4, value=value, name="Frequency", 
+                f = F.add(npyscreen.TitleSelectOne, max_height=4, value=value, name=field["name"], 
                         values = field["values"], scroll_exit=True)
                 f._key = key
                 self.fields[key] = f
+            elif field["type"] == "text":
+                f = F.add(npyscreen.TitleText, max_height=1, value=field["value"], name=field["name"], 
+                        values = field["value"])
+                f._key = key
+                self.fields[key] = f
 
 
         # This lets the user play with the Form.
@@ -128,6 +155,7 @@ class OpenChronosApp(npyscreen.NPSApp):
 
         fp = open("config.h", "w")
         fp.write("// !!!! DO NOT EDIT !!!, use: make config\n")
+        fp.write(HEADER)
         for key,dat in DATA.iteritems():
             if isinstance(dat["value"], bool):
                 if dat["value"]:
@@ -136,6 +164,7 @@ class OpenChronosApp(npyscreen.NPSApp):
                     fp.write("// %s is not set\n" %key)
             else:
                 fp.write("#define %s %s\n" %(key, dat["value"]))
+        fp.write(FOOTER)
 
 
     def load_config(self):