i am working on an unmanned naval vessel project

[rajeevkrishna]

we are using 8051 . want help in writin codes to compare the current gps location (lat & long) and the destination lat & long ,and to rotate the stepper motor accordingly after comparision

 

[ckshivaram]

put the work what you have done till now... someone would see it and help you......... put your circuit and code.. and the doubt or the problem where you are struck.........

 

[rajeevkrishna]

in the offshore model the keypad interface ,lcd interface and zigbee interface is done. its receiving the gps data from the onshore unit.
in the onshore unit the gps interface , lcd interface and zigbee interface is done. and this unit is transmitting the current gps data to the offshore unit and receiving the destination address typed from the offshore unit .
now we need to compare the current location and destination (lat and long)
and turn the stepper motor for the ruder angle to move from current location to destination location. as its a 8051 we need to use multiplexer as serial controller is not present. taking UART1 for gps ans UART 2 for zigbee in the onshore unit.