diff --git a/entry/src/main/ets/common/utils/SerialPortClient.ts b/entry/src/main/ets/common/utils/SerialPortClient.ts
new file mode 100644
index 00000000..04027989
--- /dev/null
+++ b/entry/src/main/ets/common/utils/SerialPortClient.ts
@@ -0,0 +1,62 @@
+import buffer from '@ohos.buffer';
+import testNapi from '@ohos.hiserialsdk'
+
+const TAG = '[TcpDemo.TcpClient]'
+import prompt from '@ohos.prompt'
+/**
+ * devPath
+ *j36--ttyS5
+ * j37--ttyS7
+ * j38--ttyS9
+ */
+
+export default class SerialPortClient {
+  private devPath: string = ''
+  private len: any = ''
+  private fd: number = -1
+  private speed: number = 115200 //波特率
+  private databits: number = 8 //数据位
+  private flow_ctrl:number=0 //流控制
+  private stopbits:number=1 //停止位
+  private parity:number=0x4e //停止位
+
+  constructor(devPath?:string) {
+    this.devPath = devPath || '/dev/ttyS5'
+
+  }
+
+  openSerial() {
+    this.fd = testNapi.SerialOpen(this.devPath);
+  }
+
+  SerialSet(param?) {
+    this.speed = param?.speed || 115200
+    this.flow_ctrl=param?.flow_ctrl||0
+    this.databits = param?.databits||8
+    this.stopbits=param?.stopbits||1
+    this.parity=param?.parity || 0x4e
+    testNapi.SerialSet(this.fd, this.speed , this.flow_ctrl, this.databits, this.stopbits,this.parity);
+  }
+
+  SerialSend(data?) {
+    const sendArr = data || [0x61, 0xAA, 0x0A, 0X15, 0X00] //档位查询
+    testNapi.SerialSend(this.fd, sendArr);
+  }
+
+  SerialRecv(timeout?: number) {
+    let revTestInfo = testNapi.SerialRecv(this.fd, timeout);
+
+    //let revTestInfo = testNapi.SerialRecv(this.fd, timeout, 6);
+    const message = revTestInfo?.recevedBuf?.toString()
+    console.log('revTestInfo.recevedBuf.toString()',revTestInfo.recevedBuf)
+    console.log('revTestInfo.recevedBuf.toString()',revTestInfo.recevedBuf.toString())
+    this.len = revTestInfo.recevedLen
+    return {
+      msg: message, recevedLen: this.len
+    }
+  }
+
+  SerialClose(callback) {
+    testNapi.SerialClose(this.fd);
+  }
+}
\ No newline at end of file
diff --git a/entry/src/main/ets/common/utils/http.ets b/entry/src/main/ets/common/utils/http.ets
new file mode 100644
index 00000000..12c5f178
--- /dev/null
+++ b/entry/src/main/ets/common/utils/http.ets
@@ -0,0 +1,96 @@
+import Prompt from '@system.prompt';
+import http from '@ohos.net.http';
+
+enum RequestMethod {
+  OPTIONS = "OPTIONS",
+  GET = "GET",
+  HEAD = "HEAD",
+  POST = "POST",
+  PUT = "PUT",
+  DELETE = "DELETE",
+  TRACE = "TRACE",
+  CONNECT = "CONNECT"
+}
+
+const BaseUrl = ""
+
+interface Response {
+  code: number,
+  data: any,
+  msg: string
+}
+
+export async function request<T>(
+  url: string,
+  config: {
+    method: string;
+    params?: any;
+    data?: any
+
+    [key: string]: any
+  }
+): Promise<T> {
+  const httpRequest = http.createHttp();
+  return new Promise((resolve, reject) => {
+    console.info("start request url:  ", url, "request params: ", JSON.stringify(config.params || config.data || {}))
+    httpRequest.request(BaseUrl + url,
+      {
+        method: config.method as RequestMethod,
+        header: {
+          ...config.header,
+        },
+        extraData: {
+          ...(config.params || {}),
+          ...(config.data || {})
+        },
+        expectDataType: http.HttpDataType.OBJECT,
+        connectTimeout: 60000, //超时时间
+      }).then(async (data) => {
+      let result = data.result as Response
+      if (result.code === 1) {
+        console.info("success request url: ", url)
+        console.info(JSON.stringify(result))
+        resolve(data.result as T)
+      } else if (result.code === 401) {
+        // console.error("401 request", url)
+        // let user = await PreferenceUtils.getUserModel()
+        // if (user?.isLogin) {
+        //   userLoginUsingPost({
+        //     account: user.account,
+        //     psd: user.password,
+        //   }).then(res => {
+        //     let newUser: UserModel = new UserModel(res.data)
+        //     newUser.account = user.account
+        //     newUser.password = user.password
+        //     newUser.isLogin = true
+        //     PreferenceUtils.writeUserData(newUser)
+        //     request(url, config)
+        //   }).catch(() => {
+        //     PreferenceUtils.writeUserData(new UserModel())
+        //     if (router.getState().name !== "Login") {
+        //       router.pushUrl({ url: "pages/Login" })
+        //     }
+        //   })
+        // } else {
+        //   PreferenceUtils.writeUserData(new UserModel())
+        //   if (router.getState().name !== "Login") {
+        //     router.pushUrl({ url: "pages/Login" })
+        //   }
+        // }
+      } else {
+        console.error("error request url: ", url)
+        console.error(result.msg)
+        reject(result.msg)
+        Prompt.showToast({
+          message: result.msg,
+          duration: 2000,
+        })
+      }
+    }).catch((err) => {
+      console.error("error request url: ", BaseUrl + url)
+      console.error(err)
+      reject(err)
+    })
+
+  });
+}
\ No newline at end of file