DF机器人蓝牙模块与Arduino的接口

DF机器人蓝牙模块如何连接到Arduino以便Arduino可以与之通信。DF机器人蓝牙模块与Arduino的接口

我设法让灯闪烁在模块上，它似乎可以配对，但是当我运行串行监视器并发送一个字母（说'H'）这应该打开一个灯我得到Java错误：

java.io.IOException: Bad file descriptor in nativeDrain 
    at gnu.io.RXTXPort.nativeDrain(Native Method) 
at gnu.io.RXTXPort$SerialOutputStream.flush(RXTXPort.java:1201) 
at processing.app.Serial.write(Serial.java:470) 
at processing.app.Serial.write(Serial.java:492) 
at processing.app.SerialMonitor.send(SerialMonitor.java:128) 
at processing.app.SerialMonitor.access$100(SerialMonitor.java:29) 
at processing.app.SerialMonitor$4.actionPerformed(SerialMonitor.java:82) 
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) 
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) 
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) 
at javax.swing.DefaultButtonModel.setPressed(Unknown Source) 
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) 
at java.awt.Component.processMouseEvent(Unknown Source) 
at javax.swing.JComponent.processMouseEvent(Unknown Source) 
at java.awt.Component.processEvent(Unknown Source) 
at java.awt.Container.processEvent(Unknown Source) 
at java.awt.Component.dispatchEventImpl(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Window.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.EventQueue.dispatchEvent(Unknown Source) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.run(Unknown Source)

我检查了线路和我有RXD要去RX在董事会和TXD到TX（引脚1）（引脚0），其余有线了，但同样仍然没有运气。什么可能是这个问题？

这是我对Arduino的代码：

int ledpin = 13; 
char val; 
void setup() { 
    pinMode(ledpin, OUTPUT); // pin 48 (on-board LED) as OUTPUT 
    Serial.begin(9600); // start serial communication at 9600bps 
} 

void loop() { 
    if(Serial.available()) { // if data is available to read 
     val = Serial.read(); // read it and store it in 'val' 
    } 

    if(val == 'H') { // if 'H' was received 
     digitalWrite(ledpin, HIGH); // turn ON the LED 
    } else { 
     digitalWrite(ledpin, LOW); // otherwise turn it OFF 
    } 

    delay(100); // wait 100ms for next reading 
}

来源

2009-09-02 Matthew Deloughry

您是否能够直接将Arduino连接到串行端口并使通信正常工作（即没有混合蓝牙模块）？ – 2009-09-02 15:56:55

是的，它似乎只是蓝牙不喜欢的IDE连接库liburi – 2009-09-03 09:00:38

请你详细介绍一下组件（Arduino IDE，串口，蓝牙模块，Arduino等）以及它们之间的通信机制（串口，蓝牙，等等。）？特别是我不清楚如何将数据发送到串行端口转换为蓝牙信号并由模块接收。 – 2009-09-03 09:39:01