diff --git a/avr/devices/n12/n12_main.asm b/avr/devices/n12/n12_main.asm
index 1413ab3..0c32e7b 100644
--- a/avr/devices/n12/n12_main.asm
+++ b/avr/devices/n12/n12_main.asm
@@ -51,6 +51,8 @@
 #define MODULES_STATS
 ;#define MODULES_CNY70
 #define MODULES_REED
+#define MODULES_OWI_MASTER
+#define MODULES_DS18B20
 
 
 ; ---------------------------------------------------------------------------
@@ -161,6 +163,12 @@ firmwareStart:   rjmp main
 #ifdef MODULES_REED
   .include "modules/reed/main.asm"
 #endif
+#ifdef MODULES_OWI_MASTER
+  .include "modules/owimaster/main.asm"
+#endif
+#ifdef MODULES_DS18B20
+  .include "modules/ds18b20/main.asm"
+#endif
 
 
 
@@ -185,6 +193,9 @@ sramTimerEnqueueValues:      .byte 2
 #ifdef MODULES_LCD
   sramPeriodicalLcdMark:       .byte 2
 #endif
+#ifdef MODULES_DS18B20
+  sramDs18b20Timer:            .byte 2
+#endif
 
 
 ; ***************************************************************************
@@ -223,6 +234,9 @@ timerList:
 #endif
 #ifdef MODULES_CNY70
   .dw sramTimerCny70SendAdc,       CNY70_OnTimer,              TIMER_FLAGS_IF_ADDR, 50     ; every 5s
+#endif
+#ifdef MODULES_DS18B20
+  .dw sramDs18b20Timer,            Ds18b20_OnTimer,            0,                   300    ; every 30s
 #endif
   .dw 0 ; end of list