Generally we are listening the wards PCB’s, PCB layout, PCB designing, ect. But what is PCB? Why we are using this PCB? We want to know about all these things as a electronic engineer. PCB means Printed Circuit Board. This is a circuit board with printed copper layout connections. These PCB’s are two types. One is dotted PCB and another one is layout PCB. What is the main difference between the dotted PCB and layout PCB? In dotted PCB board only dots are available. According to our requirement we can place or insert the components in those holes and attach the components with wires and soldering lid. In this dotted PCB we can make the circuit as out wish but it is very hard to design. There are so many difficulties are there. Those are connecting the proper pins, avoiding shot connections and etc. Coming to the layout PCB this is simple to design.  

For this project, except for a GPS-enabled mobile phone to record GPS NMEA sentences, no hardware is required. I used an Android phone, and several applications are available in the Play Store which will allow you to record NMEA sentences either in the “.txt” or in the “.log” format. Since not all users have access to an Android phone, I have attached two sets of GPS sentences to allow you to complete this project. Since no GPS signal could be obtained indoors, the first set of GPS sentences were recorded by walking for approximately 100 metres outdoors. The second set of GPS sentences were recorded indoors for a no GPS signal condition. The only other hardware that is needed is a Host PC. For this project, I used a HP Pavilion G6 series laptop with an Intel 2.1GHz processor and 3 GB RAM running Windows 7 Home Basic 64-bit OS.