Fabrication of GPS Robot

In the older days, army people use carrier pigeons in order to send messages. In the present says, people use telephones, but these often breakdown. In order to pass message from one point to the other, the messages should be transferred manually. For this you have the solution with the self-navigational, multi terrain, unmanned robot.

Not only vehicles, you can fabricate different robots for various applications with the help of GPS technology. In the current review, you can find the info regarding the two wheel GPS robot. Initially we discuss about the equipments used for fabrication.

Equipments used

The equipments used to manufacture the GPS driven vehicle are GPS module- Garmin GPS-15L, Garmin GA25 Antenna, serial cables, solder and soldering iron, 3-AA-4.5V-battery mount, copper wire with standard coating, Standard Breadboard with Radio Shack, Pentium III- 1 1Ghz laptop with Windows 2000 for reliable test.

For the robotic beginners

One of the better way to start with the robotics is with building robotics platform with K-Team Hemisson or a Roomba vacuum. Both the platforms are very much affordable and are issued with drive controls with serial port input or USB.

Software Used
Software used for the fabrication purpose is Java JDK- version 5 with Netbeans IDE, RXTX Serial Driver for the JAVA, and Mini-com in Linux and Hyper terminal in Windows

Hardware Preparation
Before starting the process with the software programming, it is very much essential to integrate the hardware. It is much more important to select a suitable GPS unit that is integrated with the pre-built robotics platform. The Garmin GPS-15L is selected for low power consumption, accuracy, better output format and is also very much affordable.

Electrical connections with GPS

The wiring for GPS is pretty simple. You have to take care of hooking the power and also connecting the GPS input and output connections to the serial connector. It is suggested to test the circuit once before soldering. You can find a better wiring diagram from the manual of GPS15-L- GSM system. You can download manual from Garmin website.

Software Preparation
The Java platform doesn’t support for the serial driver communication. The serial communication works both on Windows and in Linux. RXTX serial driver is one of the better compatible drivers for this particular application. Instructions regarding getting the RXTX library can be found from DevX Forum posting.as you install the RXTX, you can start working with the driver.
Writing data
Writing data into the serial port is almost similar to writing data into the file. After connecting the serial port, writing data into the serial port is much easier than reading data. Note:
The application for fabricating the robot using GPS should be written keeping in mind for adding more sensors for future enhancement.

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