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+# BP7S Workflow
+
+## Import BP7S Module
+
+```js
+import {
+  BP7SModule,
+  BPProfileModule
+} from '@ihealth/ihealthlibrary-react-native';
+```
+
+## APIs
+
+### add and remove listener
+
+```js
+// add
+notifyListener = DeviceEventEmitter.addListener(BP7SModule.Event_Notify,  (event) => {
+    console.log(event);
+});
+
+// remove
+notifyListener.remove();
+```
+
+### get battery
+
+```js
+BP7SModule.getBattery(mac);
+
+notifyListener = DeviceEventEmitter.addListener(BP7SModule.Event_Notify,  (event) => {
+    if (event.action === BPProfileModule.ACTION_BATTERY_BP) {
+        console.log(event[BPProfileModule.BATTERY_BP]);
+    }
+});
+```
+
+### set unit
+
+The API can change the unit of the bg5 display.
+
+```js
+// unit :0 mmHg;1 kPa
+BP7SModule.setUnit(mac, 1);
+
+// response
+notifyListener = DeviceEventEmitter.addListener(BP7SModule.Event_Notify,  (event) => {
+    if (event.action === BPProfileModule.ACTION_SET_UNIT_SUCCESS_BP) {
+        console.log("set Unit");
+    }
+});
+```
+
+### get quantity of data stored in the bp5 device
+
+```js
+BP7SModule.getOfflineNum(mac);
+
+// response
+notifyListener = DeviceEventEmitter.addListener(BP7SModule.Event_Notify,  (event) => {
+    if (e.action === BPProfileModule.ACTION_HISTORICAL_NUM_BP) {
+        console.log(event[BPProfileModule.HISTORICAL_NUM_BP]);
+    }
+});
+```
+
+### get data stored in the bp5 device
+
+```js
+BP7SModule.getOfflineData(mac);
+
+notifyListener = DeviceEventEmitter.addListener(BP7SModule.Event_Notify,  (event) => {
+    if (e.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
+BP7SModule.disConnect(mac);
+```
+
+### set angle range
+
+```js
+/**
+ * leftHigh  the maximum measure angle of left hand, the maximum value must less than 90
+ * leftLow   the minimum measure angle of left hand, the minimum value must more than 0, and less than leftUpper
+ * rightHigh the maximum measure angle of right hand, the maximum value must less than 90
+ * leftLow   the minimum measure angle of right hand, the minimum value must more than 0, and less than rightUpper
+ */
+BP7SModule.angleSet(mac, 80, 30, 80, 30);
+
+// response
+notifyListener = DeviceEventEmitter.addListener(BP7SModule.Event_Notify,  (event) => {
+    if (e.action === BPProfileModule.ACTION_SET_ANGLE_SUCCESS_BP) {
+        console.log("set angle");
+    }
+});
+```
+
+### get bp7s device information
+
+```js
+BP7SModule.getFunctionInfo(mac);
+```
+
+### get all connected devices
+
+```js
+BP7SModule.getAllConnectedDevices();
+```
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