# KN550 Workflow

## import KN550 module

```js
import {
  BP550BTModule,
  BPProfileModule
} from '@ihealth/ihealthlibrary-react-native';
```

## APIs

### add and remove listener

```js
// add
notifyListener = DeviceEventEmitter.addListener(BP550BTModule.Event_Notify,  (event) => {
    console.log(event);
});

// remove
notifyListener.remove();
```

### get battery

```js
BP550BTModule.getBattery(mac);

notifyListener = DeviceEventEmitter.addListener(BP550BTModule.Event_Notify,  (event) => {
    if (event.action === BPProfileModule.ACTION_BATTERY_BP) {
        console.log(event[BPProfileModule.BATTERY_BP]);
    }
});
```

### get KN550 function

```js
BP550BTModule.getFunctionInfo(mac);

notifyListener = DeviceEventEmitter.addListener(BP550BTModule.Event_Notify,  (event) => {
    if (event.action === BPProfileModule.ACTION_FUNCTION_INFORMATION_BP) {
        console.log(event[BPProfileModule.FUNCTION_IS_UPAIR_MEASURE]);
        console.log(event[BPProfileModule.FUNCTION_IS_ARM_MEASURE]);
        console.log(event[BPProfileModule.FUNCTION_HAVE_ANGLE_SENSOR]);
        console.log(event[BPProfileModule.FUNCTION_HAVE_OFFLINE]);
        console.log(event[BPProfileModule.FUNCTION_HAVE_HSD]);
        console.log(event[BPProfileModule.FUNCTION_HAVE_ANGLE_SETTING]);
        console.log(event[BPProfileModule.FUNCTION_IS_MULTI_UPLOAD]);
        console.log(event[BPProfileModule.FUNCTION_HAVE_SELF_UPDATE]);
    }
});
```

### get quantity of data stored in the KN550 device

```js
BP550BTModule.getOfflineNum(mac);

notifyListener = DeviceEventEmitter.addListener(BP550BTModule.Event_Notify,  (event) => {
    if (e.action === BPProfileModule.ACTION_HISTORICAL_NUM_BP) {
        console.log(event[BPProfileModule.HISTORICAL_NUM_BP]);
    }
});
```

### get data stored in the KN550 device

```js
BP550BTModule.getOfflineData(mac);

notifyListener = DeviceEventEmitter.addListener(BP550BTModule.Event_Notify,  (event) => {
    if (event.action === BPProfileModule.ACTION_HISTORICAL_DATA_BP) {
        let dataArray = event[BPProfileModule.HISTORICAL_DATA_BP];
        if (dataArray == undefined) {
            result = "There is not offline data in device"
        }else {
            for (let i = 0; i < dataArray.length; i++) {
                let offlineData = dataArray[i];

                console.log(offlineData[BPProfileModule.MEASUREMENT_DATE_BP]);
                console.log(offlineData[BPProfileModule.HIGH_BLOOD_PRESSURE_BP]);
                console.log(offlineData[BPProfileModule.LOW_BLOOD_PRESSURE_BP]);
                console.log(offlineData[BPProfileModule.PULSE_BP]);
                console.log(offlineData[BPProfileModule.MEASUREMENT_AHR_BP]);
                console.log(offlineData[BPProfileModule.MEASUREMENT_HSD_BP]);
                console.log(offlineData[BPProfileModule.DATAID]);
            }
        }
    }
});
```

### disconnect device

```js
BP550BTModule.disconnect(mac);
```

### get device information

```js
iHealthDeviceManagerModule.getDevicesIDPS(mac, (event) => {
    console.info(event);
})
```

### get all connected devices

```js
BP550BTModule.getAllConnectedDevices();
```