THE FIRST TRYING AND EARLIER RESULT

The first and earlier result that can be showed by this security alarm and GPS coordinate using Arduino is shown below.

The result of Arduino GPS and GPS data longger showed there is no signal detection at current location. This case may be happened caused of GPS antenna cannot received a signal from satellite.

The principle of GPS state that the GPS typically will not works indoor, underwater or underground. There is no signal if the GPS was located in a building and so on.

This case absolutely relate with GPS standard. To make sure a measurement of GPS, the open areas are needed in order to get an accurate of GPS data.