Arduino talks to Java over Serial Interface
Running the default code from http://www.arduino.cc/playground/Interfacing/Java
Need to change port number in java code to reflect the arduino
- Install arduino as per normal
- Check that the *.dll exist in this path
Drive:\folder\arduino-00VER\rxtxSerial.dll
Check that the *.jar file exisit in this path
Drive:\folder\arduino-0022\arduino-0022\lib\ RXTXcomm.jar - Create run.bat with the following data in this format, modify the parameters to suit your computer’s path.
This will use javac to compile java and execute from CMD.
@set path=%path%;C:\Program Files\Java\jdk1.6.0_25\bin
@D:\Users\s41764\Desktop\Documents\Downloads\arduino-0022\arduino-0022
setlocal
set PATH=%PATH%;D:\Users\s41764\Desktop\Documents\Downloads\arduino-0022\arduino-0022\
"C:\Program Files\Java\jdk1.6.0_25\bin\javac" -cp "D:\Users\s41764\Desktop\Documents\Downloads\arduino-0022\arduino-0022\lib\RXTXcomm.jar" SerialTest.java
"C:\Program Files\Java\jdk1.6.0_25\bin\java" -cp "D:\Users\s41764\Desktop\Documents\Downloads\arduino-0022\arduino-0022\lib\RXTXcomm.jar;." SerialTest
- Upon successful compilation by javac, the program will run and display the string send by arduino.
- To detect the specific character sequence and associated code handling in java, use api call String.compareTo(). Note that the serial receive is not fix number of bytes. Hence, a buffer is required to store the intended message from arduino, and then to do a string comparison.
Running the default code from http://www.arduino.cc/playground/Interfacing/Java
Need to change port number in java code to reflect the arduino
check out the modified code here
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