用Java控制Arduino [英] Control an Arduino with Java

问题描述

我希望通过Java程序打开和关闭 LED 。我在大概5分钟内在C＃中完成了这个项目，但Java似乎更具挑战性。我有Arduino等待1或0写入 COM端口并将基于此更改LED。我用于Arduino的代码如下。

I am looking to turn an LED on and off with a Java program. I did the project in C# in roughly 5 minutes, but it seems to be somewhat more challenging in Java. I had the Arduino wait for a 1 or 0 to be written to the COM port and would change the LED based on that. The code I am using for the Arduino is as follows.

int LedPin = 13;
char data;

void setup()
{
    Serial.begin(9600);
    pinMode( LedPin , OUTPUT );
}

void loop()
{
    data = Serial.read();
    if (Serial.available() > 0)
    {
        if(data == '1' )
        {
            digitalWrite(LedPin,HIGH);
        }
        else if(data == '0' )
        {
            digitalWrite(LedPin,LOW);
        }
    }
    else
        if (Serial.available()<0)
        {
            digitalWrite(LedPin,HIGH);
            delay(500);
            digitalWrite(LedPin,LOW);
            delay(500);
        }
}

我如何使用Java应用程序？ / p>

How would I do this with a Java application?

推荐答案

您可以使用JArduino（Java-Arduino）库，它提供了一个Java API来使用串行端口来控制Arduino USB电缆或从软件角度看作串行端口的无线设备），UDP（通过以太网屏蔽）。所有与Java和Arduino之间的通信相关的代码都由库内部进行管理。

You can use the JArduino (Java-Arduino) library, which provides a Java API to control your Arduino using serial port (using a USB cable, or wireless devices behaving as serial ports from a software point of view), UDP (via an ethernet shield). All the code related to communication between Java and Arduino is managed internally by the library.

这是一个用于闪烁LED的Java示例：

public class Blink extends JArduino {

public Blink(String port) {
    super(port);
}

@Override
protected void setup() {
    // initialize the digital pin as an output.
    // Pin 13 has an LED connected on most Arduino boards:
    pinMode(DigitalPin.PIN_12, PinMode.OUTPUT);
}

@Override
protected void loop() {
    // set the LED on
    digitalWrite(DigitalPin.PIN_12, DigitalState.HIGH);
    delay(1000); // wait for a second
    // set the LED off
    digitalWrite(DigitalPin.PIN_12, DigitalState.LOW);
    delay(1000); // wait for a second
}

public static void main(String[] args) {
    String serialPort;
    if (args.length == 1) {
        serialPort = args[0];
    } else {
        serialPort = Serial4JArduino.selectSerialPort();
    }
    JArduino arduino = new Blink(serialPort);
    arduino.runArduinoProcess();
}
}

JArduino可从以下网址获取： JArduino

JArduino is available at: JArduino

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