Ionic BLE 制造商特定数据

Question

使用 @ionic-native/ble 我能够扫描并发现具有制造商特定数据的 BLE 设备。

根据库(https://github.com/don/cordova-plugin-ble-central#ios-1)，这里是获取这些数据的方法

const mfgData = new Uint8Array(device.advertising.kCBAdvDataManufacturerData);
console.log('Manufacturer Data: ', mfgData);

const hex = Buffer.from(mfgData).toString('hex');
console.log(hex);

十六进制编码结果为2604 0504 386 55c0b

我不明白的是使用这个结果解码制造商（公司）id 的正确方法，它应该是“0x0426”

Answer 1

您可以尝试以下方法：

const toHexString = bytes =>
  bytes.reduce((str, byte) => str + byte.toString(16).padStart(2, '0'), '');

console.log(toHexString(new Uint8Array([0, 1, 2, 42, 100, 101, 102, 255])))

Ionic BLE 制造商特定数据

Ionic BLE Manufacturer specific Data

bluetooth-lowenergy

ionic-framework