This library looked promising as something quite simple with only one single jar file to add as a library in Eclipse. The next library tried was java-simple-serial-connector or jSSC.
RXTX, 64 bit precompiled binaries for Windows, was attempted, compiled, and transferred to the RoboRio, but once there it ran into runtime failure as something about the library was not available for some reason. Not being discouraged I tried some open source USB serial libraries and met failure with both of them. I looked at the online documentation for the WPILib SerialPort implementation and saw that documentation mentions “Driver for the RS-232 serial port on the RoboRIO”. Click "Download" -The program now run for a minutes or 2.I saw this post awhile back and had come across a forum in the past that ensured that USB serial communication between the Raspberry Pi and Arduino is possible so I thought that it would be easy to setup a serial connection via USB. You see I included the 115200-10Hz and the 38400-5Hz files as well, just incase you want to go back to the High baud rate. Go into the “MT3339” map and Select one of the 3 files: (See picture 1) -Select “ MTK_AllInOne_DA_MT3339_E3”. And am not responsible for your mistakes! SO CHECK YOUR MODDEL NUMBER BEFORE FLASHING! -Start up “ PowerFlash.exe”. If not used properly, for example: selecting the wrong Agent or ROM you could brick your GPS unit. Warning!! Although this is the official Software and Firmware from the manufacturer you must pay attention to what you’re doing. Download the file attached on this page, names "MT3339-Tool-and-Firmware.zip" -Unpack the zip. Void setup() Connect the wires: (GPS) RX -> (Arduino) 0 (GPS) TXS -> (Arduino) 1 (GPS) Power -> Arduino 3.3v (GPS) GND -> (Arduino) GND.
Fist Load a Empty program on your Arduino: For the program to work you’ll need a USB-to-serial adapter, A Arduino can do this just fine, thanks to its onboard ATMEGA16U2.
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