Read IT+ telegrams using CUL (www.busware.de) and decode the info
When cul is set to mode "Nf2" it starts receiving raw packets. A received packet looks like this (at least on my device):
N029385566A32EACFA72A48800A
On http://fredboboss.free.fr/articles/tx29.php is an excelent information on the 1st 5 bytes (or 10 nibbles) of the packet. This results in:
N029385566A32EACFA72A48800A
!!!!--------!!------------!
!!! + +--------- unknown to me
!!! +
!!! +--------------------- decoded using the info from fred
!!!
!!+--------------------------- ID-info from CUL
At the moment I have no idea about the last 7 bytes.
With that info decoding results in:
SensorID: 14
New battery: no
low battery: no
Temp: 15.6
humidity: NaN
sensorid:14 newbat:0 lowbat:0 temp:15.6 humidity:-1
The last line is suitable for some other tools like cacti or nagios to postprocess the info.
This is a pic of my device https://github.com/jgeinitz/cul2tfa/blob/master/doc/it%2B.jpg
