GPS CIRCUIT BOATS COMPUTER PIC18F4550 MICROCONTROLLER

EM408 PIC18F4550 GPS Boat Computer for Marine Navigation

The EM408 PIC18F4550 GPS Boat Computer is a marine electronics project designed to provide useful navigation and trip information on a compact 2×16 LCD. It combines a PIC18F4550 microcontroller with an EM408 GPS module and can display speed, heading, position, time, fuel information, and saved locations.

GPS Navigation and Boat Information

The EM408 GPS module receives satellite navigation data and sends position and movement information to the PIC18F4550 through a serial connection.

The system can display:

• Speed in knots
• Compass heading
• Latitude and longitude
• Date and time
• Fuel consumption rate
• Total fuel consumed
• Compass direction

Reliable GPS reception requires the antenna to have a reasonably clear view of the sky. Metal structures, enclosed installations, or electrical interference may reduce signal quality.

Saving Fishing and Diving Locations

One of the most practical features of the EM408 PIC18F4550 GPS Boat Computer is its ability to store up to eight favorite locations.

These saved points can be used to help navigate back to fishing spots, diving areas, or other positions that may have no visible landmarks nearby.

Saved GPS coordinates should still be treated as navigation aids rather than a replacement for appropriate marine navigation equipment.

Simple Button-Based Controls

The interface uses UP, DOWN, and SET buttons to move between screens and adjust settings.

UP and DOWN cycle through the available information screens, while SET allows editable values such as the time zone to be changed. The system also remembers the last selected screen when switched off and returns to it when power is restored.

Fuel Consumption Monitoring

The boat computer can display both current fuel consumption and the total amount used.

This function requires a compatible signal from the boat's fuel sensor or flow-measurement system. Calibration is important because different sensors may generate different signals for the same amount of fuel flow.

Marine Installation Considerations

Before installing the circuit on a boat, the LCD, buttons, GPS serial connection, and power supply should be tested on the workbench.

Marine electrical systems can experience alternator noise and voltage spikes, so regulated power and suitable input protection are important. The electronics should also be housed in a protected enclosure to reduce exposure to moisture, salt, and corrosion.

PIC18F4550 Project Resources

The project includes compiled HEX firmware, although the original source code is not available.

Even without editable firmware, the circuit provides a useful reference for studying how a PIC18F4550, GPS receiver, LCD, controls, and external sensors can be combined in a marine information system.

Final Overview

The EM408 PIC18F4550 GPS Boat Computer combines GPS navigation, waypoint storage, fuel monitoring, and basic marine trip information in a single microcontroller-based project.

Its most useful applications include displaying real-time navigation data and helping boat users return to previously saved locations while providing additional information about heading, speed, and fuel usage.

Source: GPS CIRCUIT BOATS COMPUTER PIC18F4550 MICROCONTROLLER Source 2: http://www.siliconchip.com.au/cms/A_112144/article.html Boats Computer GPS Circiut pcb, schematic, soruce code files Alternative link: gps-boats-computer-pic18f4550-microcontroller.raralternative link2 alternative link3

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Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough...