diff --git a/avr/devices/n28/README b/avr/devices/n28/README
index c6733c4..168aed4 100644
--- a/avr/devices/n28/README
+++ b/avr/devices/n28/README
@@ -10,4 +10,13 @@ N28
   - door sensor (TCRT1000)
   - TWI interface
     - SI7021 temperature and humidity sensor
-    
\ No newline at end of file
+- Apps:
+  - NETWORK      : Basic network functionality (address setup etc.)
+  - REPORTSENSORS: report sensor data from temperature sensor etc.
+  - STATS        : periodically send stats data
+  - DOOR         : watch door/window sensor and notify about state changes
+
+- Values:
+  - SI7021_TEMP  : temperature
+  - SI7021_HUM   : humidity
+  - DOOR         : state of door/window (0=closed, >0=open)