DEVELOPING APPLICATION WITH GPS MODULE
See following block diagram that help you how you can develop a GPS based application. Suppose we are using GPS module EM-406A it is a small GPS module having in built microwave antenna and module size is only 3cm X 3cm. It has Rs-232 interface. with very low power consumption. operate on 1575.42 MHz. It has serial interface with bound rate 4800. Link for its datasheet go with Data_sheet EM-406A Basic interface with the micro-controller is as follow.
For getting navigation data from GPS module. We program micro-controller that gives NMEA command to GPS receiver. And GPS receiver gives NMEA output message to micro-controller containing navigational information as I explained in last post positional information in the form of latitude, longitude and altitude. Micro-controller may have other element like memory for storing result, display or some communication media to transmit the result that is obtained from GPS module to other device that data will be useful for navigation purpose. You can search for NMEA input command that is to be given to the GPS receiver which replay with the NAME output message which contain navigational data or Click here for getting. NMEA command works same as the AT- command for GSM module.
In the next block I will be with the GSM module and the combination of both GSM and GPS for car security system. If want some more information about interfacing GPS module with PC or micro-controller or any suggestion about any informative blog related to electronics that I can publish please post comment.
