N28
===
- Role: Door sensor with temp sensor
- MCU: AtTiny84
- Frequency: 1MHz
- Connection: RJ45
- COM: COM2W
- Predecessor: N21, N16
- Periphery:
- door sensor (TCRT1000)
- TWI interface
- SI7021 temperature and humidity sensor
- 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)
