diff --git a/avr/devices/e03/README b/avr/devices/e03/README
index 53fa35b..725147d 100644
--- a/avr/devices/e03/README
+++ b/avr/devices/e03/README
@@ -9,3 +9,5 @@ E03
 - Periphery:
   - TWI interface
     - clock
+  - SPI interface
+    - RAM
diff --git a/avr/devices/e03/defs.asm b/avr/devices/e03/defs.asm
index 46741bb..b6dba86 100644
--- a/avr/devices/e03/defs.asm
+++ b/avr/devices/e03/defs.asm
@@ -48,16 +48,6 @@
 
 
 
-; ---------------------------------------------------------------------------
-; LED Activity module
-
-.equ LED_ACTIVITY_DDR     = DDRA
-.equ LED_ACTIVITY_PORT    = PORTA
-.equ LED_ACTIVITY_PORTIN  = PINA
-.equ LED_ACTIVITY_PINNUM  = PORTA3
-
-
-
 ; ---------------------------------------------------------------------------
 ; COM module
 
diff --git a/avr/devices/e03/main/0BUILD b/avr/devices/e03/main/0BUILD
index aea2676..9904735 100644
--- a/avr/devices/e03/main/0BUILD
+++ b/avr/devices/e03/main/0BUILD
@@ -25,7 +25,7 @@
   </subdirs>
 
   <extradist>
-    data.asm
+    screen.asm
   </extradist>
   
 
diff --git a/avr/devices/e03/main/data.asm b/avr/devices/e03/main/data.asm
deleted file mode 100644
index 31ccc2f..0000000
--- a/avr/devices/e03/main/data.asm
+++ /dev/null
@@ -1,14 +0,0 @@
-; ***************************************************************************
-; copyright   : (C) 2025 by Martin Preuss
-; email       : martin@libchipcard.de
-;
-; ***************************************************************************
-; * This file is part of the project "AqHome".                              *
-; * Please see toplevel file COPYING of that project for license details.   *
-; ***************************************************************************
-
-
-
-.dseg
-
-
diff --git a/avr/devices/e03/main/main.asm b/avr/devices/e03/main/main.asm
index 8ed8884..529ed7a 100644
--- a/avr/devices/e03/main/main.asm
+++ b/avr/devices/e03/main/main.asm
@@ -31,7 +31,6 @@
 .list
 
 .include "../defs.asm"
-.include "./data.asm"
 
 .include "version.asm"
 .include "devices/all/defs.asm"
@@ -76,7 +75,6 @@
 ; ---------------------------------------------------------------------------
 ; defines for values
 
-.equ VALUE_ID_LEDSIMPLE_TIMING = 0x88
 
 
 
@@ -190,7 +188,7 @@ onEveryLoop:
 .include "devices/all/hw_tn84.asm"
 .include "devices/all/includes.asm"
 
-.include "common/debug.asm"
+;.include "common/debug.asm"
 ;.include "modules/network/msg/debug-w.asm"
 
 .include "screen.asm"