...
Add "opendevice-connection-stream" dependency to pom.xml (see this, and change the artifactId)
Hardware
For this sample you need only a PC and Arduino (or compatible like one of EnergiaIDE).
Set up the Arduino
If you have already used Arduino before this then you can skip this step. This will setup the Arduino development environment on your computer which will allow you to upload code to your Arduino. Go to the Arduino website and choose your platform (Windows, Mac, or Linux) and follow their guide to installing the IDE.
Sources
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import br.com.criativasoft.opendevice.connection.DeviceConnection;
import br.com.criativasoft.opendevice.connection.StreamConnectionFactory;
import br.com.criativasoft.opendevice.connection.message.Message;
public class Blink {
public static DeviceConnection connection;
public static void main(String[] args) throws Exception {
connection = StreamConnectionFactory.createUsb("/dev/ttyACM0"); // OBS.1
connection.connect();
while(true){
connection.send(SimpleMessage.ON);
Thread.sleep(500);
connection.send(SimpleMessage.OFF);
Thread.sleep(500);
}
}
} |
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OBS.1 Change USB Port. |
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#define LED 13
void setup(){
Serial.begin(9600);
pinMode(LED, OUTPUT);
}
void loop(){
if (Serial.available() > 0) {
int value = Serial.read(); // read value
Serial.print("READ:");
Serial.println(value);
if(value == HIGH || value == LOW ){
digitalWrite(LED,value);
}
}
} |
Other options of the library
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StreamConnectionFactory.createBluetooth("20:13:01:24:01:93");
StreamConnectionFactory.createTcp("http://192.168.0.101:8282");
// You can customize the default message format or the way it is read.
// The default implementation expects a line terminator (println).
connection.setStreamReader(new FixedStreamReader(5)); |
| Info |
|---|
These examples are for understanding how the communication process occurs at the lowest level. The API OpenDevice provide a number of features that facilitate further integration. |
Troubleshooting
If you have a problem, check this guide: Troubleshooting