diff --git a/avr/devices/n20/main.asm b/avr/devices/n20/main.asm
index 57bc7fd..a40ac2b 100644
--- a/avr/devices/n20/main.asm
+++ b/avr/devices/n20/main.asm
@@ -57,10 +57,10 @@
 #define MODULES_LED_SIMPLE
 #define MODULES_NETWORK
 #define MODULES_UART_BITBANG
-;#define MODULES_TWI_MASTER
+#define MODULES_TWI_MASTER
 ;#define MODULES_LCD
 ;#define LCD_MINIMAL_FONT
-;#define MODULES_SI7021
+#define MODULES_SI7021
 ;#define MODULES_STATS
 ;#define MODULES_OWI_MASTER
 ;#define MODULES_DS18B20
@@ -71,7 +71,7 @@
 #define APPS_NETWORK
 ;#define APPS_MOTION
 ;#define APPS_DOOR
-;#define APPS_REPORTSENSORS
+#define APPS_REPORTSENSORS
 #define APPS_STATS