I am trying to connect to my arduino with Java and OSx yosemite, but am getting the following error:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no usbJava in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at ch.ntb.usb.LibusbJava.<clinit>(LibusbJava.java:366)
at ch.ntb.usb.USB.init(USB.java:315)
at org.zu.ardulink.connection.usb.DigisparkUSBConnection.getPortList(DigisparkUSBConnection.java:116)
at org.zu.ardulink.Link.getPortList(Link.java:217)
at BlinkLED.main(BlinkLED.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
This is the code I'm executing:
public static void main(String[] args) {
try {
Link link = Link.getDefaultInstance();
link = getDigisparkConnection(); // Comment this row if you use just the default connection
List<String> portList = link.getPortList();
if(portList != null && portList.size() > 0) {
String port = portList.get(0);
System.out.println("Connecting on port: " + port);
boolean connected = link.connect(port);
System.out.println("Connected:" + connected);
Thread.sleep(2000);
int power = IProtocol.HIGH;
while(true) {
System.out.println("Send power:" + power);
link.sendPowerPinSwitch(2, power);
if(power == IProtocol.HIGH) {
power = IProtocol.LOW;
} else {
power = IProtocol.HIGH;
}
Thread.sleep(2000);
}
} else {
System.out.println("No port found!");
}
}
catch(Exception e) {
e.printStackTrace();
}
}
private static Link getDigisparkConnection() {
Set<String> protocolNames = ProtocolHandler.getInstalledProtocolImplementationNames();
SimpleBinaryProtocol protocol = new SimpleBinaryProtocol();
if(!protocolNames.contains(SimpleBinaryProtocol.NAME)) {
ProtocolHandler.installProtocolImplementation(protocol);
}
return Link.createInstance("digisparkConnection", SimpleBinaryProtocol.NAME, new DigisparkUSBConnection("digisparkConnection", protocol.getIncomingMessageDivider()));
}
When I comment the 4th line (link = getDigisparkConnection();), I get the following error:
java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path thrown while loading gnu.io.RXTXCommDriver
Exception in thread "main" java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:83)
at org.zu.ardulink.connection.serial.SerialConnection.connect(SerialConnection.java:161)
at org.zu.ardulink.connection.serial.SerialConnection.connect(SerialConnection.java:139)
at org.zu.ardulink.connection.serial.SerialConnection.connect(SerialConnection.java:227)
at org.zu.ardulink.Link.connect(Link.java:187)
at BlinkLED.main(BlinkLED.java:37)
That has something to do with the native rxtx lib but I am not being able to solve it. I am using IntelliJ IDEA as IDE. Looking for this error, I've only found linux answers, but nothing regarding OSX. Thanks
