I. INTRODUCTION
Green house farmers cannot precisely detect level
of level of humidity inside the green house. They
only know the condition inside the green house
manually and by feel it by themselves. Ultimately,
experiences play a bigger part on their daily
operations. If the condition is too dry, they will give
water to the plants or soil, but if it is too humid, they
will open the rooftop of the green house, especially in
the daylight.
In designing this device, there is limitation to
problems, to see how far this system can do its tasks.
This limitation according to the situation where this
system will be used later. The limitation is the system
can detect the humidity of air in the building. When
the humidity sensor reach a certain threshold, the
humidity sensor will send a signal to microcontroller
which will then process the signal, to be sent int o
connected computer. Computer functions as a server
which connects to the android platform.
There are 3 kinds of activity that are designed in
the system. First, monitor the humidity level in the