This is my first IOT Internet of Things attempt, based on a Arduino YUN.
Is located in my Shack and connected to a 10 Watts solar panel, with two 7Ah PBgel Batteries in parallel.
Update of 2017:
Now the system is based on a Raspberry PI B+ connected to internet that sends tu Things Speak and the Hamradio APRS Network
Data of my attic updated in real time!!