无法使用JSSC 2.8.0将数据写入Arduino

Question

我的Java代码如下：

import jssc.SerialPort;
import jssc.SerialPortException;
import jssc.SerialPortList;
public class SerialPort1{
 public static boolean sentBytes;
    //public SerialPort serialPort;
    public static void main(String[] args) {
      // get computer serial ports names
      String[] portNames = SerialPortList.getPortNames();
      for (String port : portNames) {
         System.out.println(port);
      }

      // inicialization with selecting port for communication
      SerialPort serialPort = new SerialPort("/dev/ttyACM0");
      try {
         // open port for communication
         serialPort.openPort();
         serialPort.setParams(SerialPort.BAUDRATE_9600,
                 SerialPort.DATABITS_8,
                 SerialPort.STOPBITS_1,
                 SerialPort.PARITY_NONE,false,true);
         serialPort.setFlowControlMode(SerialPort.FLOWCONTROL_NONE);
         // byte data transfer
         try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        serialPort.writeInt(1); 
         try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
         System.out.println(serialPort.readString());
         // close port
         serialPort.closePort();
      } catch (SerialPortException ex) {
         System.out.println(ex);
      }
   }
}

我能够从Arduino阅读。但是，我无法写任何东西给Arduino。如果有人帮助我这样做真的很棒。

我的arduino代码：

 void setup() {
    Serial.begin(9600);
    }
    void loop() {
    Serial.println("Android");
    delay(2000);
    }

我从此处下载了JSSC库

Answer 1

import jssc.SerialPort;
import jssc.SerialPortException;
import jssc.SerialPortList;
public class SerialPort1{
 public static boolean sentBytes;
    //public SerialPort serialPort;
    public static void main(String[] args) {
      // get computer serial ports names
      String[] portNames = SerialPortList.getPortNames();
      for (String port : portNames) {
         System.out.println(port);
      }

      // initialization with selecting port for communication
      SerialPort serialPort = new SerialPort("/dev/ttyACM0");
      try {
         // open port for communication
         serialPort.openPort();
         serialPort.setParams(SerialPort.BAUDRATE_9600,
                 SerialPort.DATABITS_8,
                 SerialPort.STOPBITS_1,
                 SerialPort.PARITY_NONE,false,true);
         serialPort.setFlowControlMode(SerialPort.FLOWCONTROL_NONE);
         // byte data transfer
         try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        serialPort.writeInt(1); 
         try {
            Thread.sleep(200);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
         System.out.println(serialPort.readString());
         // close port
         serialPort.closePort();
      } catch (SerialPortException ex) {
         System.out.println(ex);
      }
   }
}

我要做的就是在打开串行端口后增加2000毫秒的睡眠，然后在写入Arduino后加入200ms的睡眠。同样，Arduino代码的延迟减少到200ms。

void setup() {
    Serial.begin(9600);
 }
void loop() {
    Serial.println("Android");
    delay(200);
}