Ionic/Cordova 和 Arduino 蓝牙

Question

我正在使用 Ionic 构建一个应用程序，并且我正在尝试使用 bluetoothLE 将一个简单的字符串从 arduino 发送到我的应用程序。

我正在使用带有 HM-10 蓝牙适配器的 Arduino，我设法连接和断开设备，但不知道如何发送或接收数据。

只是为了测试它，我一直在尝试 write 方法，并在 arduino 上有一个简单的脚本，通过串行通信寻找任何类型的数据，但没有成功。

这是我正在使用的方法：

$rootScope.writeH =function(address, serviceUuid, characteristicUuid, value) {
    var string = "H";
    var bytes = bluetoothle.stringToBytes(string);
    var encodedString = bluetoothle.bytesToEncodedString(encodedString);

    var params = {address:address, serviceUuid:serviceUuid, characteristicUuid:characteristicUuid, value:encodedString};

    console.log("Write : " + JSON.stringify(params));

    $cordovaBluetoothLE.write(params).then(writeSuccess, writeError);
}

这就是我调用函数的方式：

<div class="col">
  <a class="button button-balanced button-small" ng-click="writeH(selectedDevice.address, selectedService.uuid, selectedCharacteristic.uuid)">Write H</a>
</div>

我使用的是运行 iOS 9 的 iPhone 6。

这是我的 Arduino 草图，此时我只是想获取任何数据：

char val; // variable to receive data from the serial port
int ledpin = 8; // LED connected to pin 48 (on-board LED)

void setup() {

  pinMode(ledpin, OUTPUT);  // pin 8 (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 == NULL )               // if any NO data was received
  {
    digitalWrite(ledpin, LOW);  //  LED is OFF
  } else { 
    digitalWrite(ledpin, HIGH);   // otherwise turn it ON
    delay(2000);
  }
  delay(100);                    // wait 100ms for next reading
} 

编辑：

我正在使用 HM10 芯片，我刚刚尝试了这个应用程序：http://itunes.apple.com/us/app/hm10-bluetooth-serial/id1030454675?mt=8，它运行良好，只需将设置更改为“无响应写入” - 我不确定我是哪种写入方式在我的 javascript 中使用，这可能是问题所在，因为“写响应”不起作用。

编辑2：

刚刚从蓝牙cordova插件中检查了iOS的源文件，写入类型设置为无响应，所以不是那个...

//Write Type
NSString *const writeTypeNoResponse = @"noResponse";

控制台日志：

[Log] Initialize : {"request":true} (index.js, line 58)
[Log] Initialize Success : {"status":"enabled"} (index.js, line 64)
[Log] Enabled (index.js, line 68)
[Log] Start Scan : {"serviceUuids":[],"allowDuplicates":false} (index.js, line 129)
[Log] Start Scan Success : {"status":"scanStarted"} (index.js, line 135)
[Log] Scan Started (index.js, line 145)
[Log] Start Scan Success : {"status":"scanResult","advertisement":"zgAG1R1JwPI=","rssi":-54,"name":"Avea_6C73","address":"4BED6ECD-A5A9-6625-61A6-D693B02EAC78"} (index.js, line 135)
[Log] Scan Result (index.js, line 139)
[Log] Start Scan Success : {"status":"scanResult","advertisement":"SE30uF7wPYo=","rssi":-82,"name":"HMSoft","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 135)
[Log] Scan Result (index.js, line 139)
[Log] Connect : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 302)
[Log] Connect Success : {"name":"HMSoft","address":"07929248-D56A-1FDB-9036-D012FBC4F10B","status":"connecting"} (index.js, line 308)
[Log] Connecting (index.js, line 316)
[Log] Connect Success : {"name":"HMSoft","address":"07929248-D56A-1FDB-9036-D012FBC4F10B","status":"connected"} (index.js, line 308)
[Log] Connected (index.js, line 312)
[Log] Discover : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 417)
[Log] Discover Success : {"status":"discovered","services":[{"characteristics":[{"descriptors":[{"descriptorUuid":"2902"},{"descriptorUuid":"2901"}],"properties":{"writeWithoutResponse":true,"read":true,"notify":true},"characteristicUuid":"ffe1"}],"serviceUuid":"ffe0"}],"name":"HMSoft","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 423)
[Log] Discovered (index.js, line 427)
[Log] Write Descriptor : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B","characteristicUuid":"ffe1","descriptorUuid":"2901","value":""} (index.js, line 879)
[Log] Read Descriptor Error : {"message":"Service not found","name":"HMSoft","error":"service","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 868)
[Log] Write Descriptor : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B","characteristicUuid":"ffe1","descriptorUuid":"2902","value":""} (index.js, line 879)
[Log] Read Descriptor Error : {"message":"Service not found","name":"HMSoft","error":"service","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 868)
[Log] Subscribe : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B","serviceUuid":"ffe0","characteristicUuid":"ffe1"} (index.js, line 757)
[Log] Subscribe Success : {"status":"subscribed","characteristicUuid":"ffe1","name":"HMSoft","serviceUuid":"ffe0","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 763)
[Log] Subscribed (index.js, line 771)
[Log] Write Descriptor : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B","characteristicUuid":"ffe1","descriptorUuid":"2901","value":""} (index.js, line 879)
[Log] Read Descriptor Error : {"message":"Service not found","name":"HMSoft","error":"service","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 868)
[Log] Write : {"address":"07929248-D56A-1FDB-9036-D012FBC4F10B","serviceUuid":"ffe0","characteristicUuid":"ffe1","value":""} (index.js, line 823)
[Log] Write Error : {"message":"Write value not found","name":"HMSoft","error":"write","address":"07929248-D56A-1FDB-9036-D012FBC4F10B"} (index.js, line 843)

Answer 1

您必须在发送和读取数据之前发现服务和特征。使用 bluetoothle.discover