Summary of How to interface GPS with PIC18F4550 Microcontroller
This project demonstrates interfacing a GPS module with a PIC18F4550 microcontroller to extract and display location data. The GPS provides geographical information in NMEA string format, including latitude, longitude, and GMT time. The GPS output in RS232 logic level is converted to TTL via a MAX232 line converter before being processed by the PIC microcontroller. The extracted latitude and longitude data are then shown on a 16x2 LCD display, enabling accurate real-time position tracking.
Parts used in the GPS with PIC18F4550 Microcontroller project:
- PIC18F4550 Microcontroller
- GPS Module
- MAX232 Line Converter
- 16x2 LCD Display
GPS provides a lot of geographical information for a particular object like its latitude, longitude, direction of travel, GMT etc. This information are assembled in a particular string format which are to be decoded by GPS modems. A GPS modem gives the output data in a following string format called as NMEA Format. A common GPS sentence ($GPGGA) has been explained below.
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