ios iPhone与ESP32之间的快速BLE通信

我是Swift的新手，因此有一些非常基本的问题。我计划开发一个简单的iPhone应用程序，它可以与连接到eBike控制器的ESP 32（双向）对话。ESP 32设置为通过BLE传输和接收数据。它发送4个信号：mode（1，2，3），light（on/off），bat（battery;值在31.5和41.5之间）和速度（浮点），并接受命令：“um”用于更改模式，“li”用于在灯光开/关之间切换
相应的UUID如下

#define SERVICE_UUID           "19074fb4-161b-47c7-964e-9d087266d6a7" 
#define CHARACTERISTIC_UUID_RX "101880eb-a78e-4cee-b252-56e06093f4da"
#define CHARACTERISTIC_UUID_TX_MODE "5d64d30b-3e03-4e65-82a2-a85e9d568f84"
#define CHARACTERISTIC_UUID_TX_LIGHT "dfbec318-8292-4b34-87b5-f13e4efb1560"
#define CHARACTERISTIC_UUID_TX_BAT "a5b79c5d-977a-4ef0-b3f3-b8f26e166378"
#define CHARACTERISTIC_UUID_TX_SPEED "b0bfad34-c571-41a5-8bc3-7726ced1ebbe"

在Swift方面，我有UI，但我不能让按钮（模式，灯光，连接）和连接正常工作。
以下是我的swift文件，包括BLE函数：

//
//  BLEController.swift
//  Bike Controller
//
//  Created by David Melinc on 19.05.22.
//

import Foundation
import CoreBluetooth

struct Peripheral: Identifiable {
    let id: Int
    let name: String
    let rssi: Int
}

class BLEController: NSObject, ObservableObject, CBCentralManagerDelegate, CBPeripheralDelegate {
   
    var myCentral: CBCentralManager!
    var myPeripheral: CBPeripheral!
   
    @Published var isSwitchedOn = false
    @Published var peripherals = [Peripheral]()
    @Published var mode: UInt16 = 0
    @Published var light: String = " "
    @Published var bat: UInt16 = 0
    @Published var speed: UInt16 = 0
    
    let SERVICE_UUID  = CBUUID(string: "19074fb4-161b-47c7-964e-9d087266d6a7")
    let CHARACTERISTIC_UUID_RX  = CBUUID(string: "101880eb-a78e-4cee-b252-56e06093f4da")
    let CHARACTERISTIC_UUID_TX_MODE  = CBUUID(string: "5d64d30b-3e03-4e65-82a2-a85e9d568f84")
    let CHARACTERISTIC_UUID_TX_LIGHT  = CBUUID(string: "dfbec318-8292-4b34-87b5-f13e4efb1560")
    let CHARACTERISTIC_UUID_TX_BAT = CBUUID(string:  "a5b79c5d-977a-4ef0-b3f3-b8f26e166378")
    let CHARACTERISTIC_UUID_TX_SPEED  = CBUUID(string: "b0bfad34-c571-41a5-8bc3-7726ced1ebbe")

    override init() {
        super.init()
        myCentral = CBCentralManager(delegate: self, queue: nil)
    }
   
    func centralManagerDidUpdateState(_ central: CBCentralManager) {
        if central.state == .poweredOn {
            isSwitchedOn = true
        }
        else {
            isSwitchedOn = false
        }
    }    
    
       func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
        var peripheralName: String!
           
        if let name = advertisementData[CBAdvertisementDataLocalNameKey] as? String {
            peripheralName = name
        }
        else {
            peripheralName = "Unknown"
        }
           
        let newPeripheral = Peripheral(id: peripherals.count, name: peripheralName, rssi: RSSI.intValue)
        print(newPeripheral)
        peripherals.append(newPeripheral)
        
    }

     
    func connectBLE(peripheral1) {
        print("trying to connect to \(peripheral1)")
                        self.myCentral.connect(peripheral1, options: nil)
                        print(2)
                        }
            }
        }
         
    }

    
    func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
        self.myPeripheral.discoverServices(nil)
        print("Connected to "+peripheral.name!)
    }
    
    func startScanning() {
        print("startScanning")
        myCentral.scanForPeripherals(withServices: nil, options: nil)
        self.perform(#selector(stopScanning), with: self, afterDelay: 5)
    }
    @objc func stopScanning() {
        print("stopScanning")
        myCentral.stopScan()
    }
}

UI文件如下：

import SwiftUI

struct BLEdevices: View {
    
    //@StateObject var bleController = BLEController()
    @EnvironmentObject var bleController: BLEController
    
    var body: some View {
        ZStack {
            Color("Themecolor")
            .edgesIgnoringSafeArea(.all)
                VStack (spacing: 10) {
                    Text("Bluetooth Devices")
                        .font(.largeTitle)
                        .frame(maxWidth: .infinity, alignment: .center)
                    List(bleController.peripherals) { peripheral in
                        HStack {
                            Text(peripheral.name)
                            Spacer()
                            Text(String(peripheral.rssi))
                            Spacer()
                            Button(action: {
                                //bleController.connectBLE(peripheral.name)
                                    }) {
                                Text("CONNECT")
                                    .font(.system(size: 10))
                                    .fontWeight(.bold)
                                    .padding()
                                    .foregroundColor(.black)
                                    .frame(alignment: .center)
                                    .background(
                                      RoundedRectangle(cornerRadius: 10)
                                          .stroke(Color.white, lineWidth: 2)
                                          .background(Color.white.cornerRadius(10)))
                                    }
                            
                        }
                    }
                    .frame(height: 600)
                    HStack (spacing: 10) {
                        Button(action: {
                            bleController.startScanning()
                                }) {
                            Text("SCAN")
                                .font(.title)
                                .fontWeight(.bold)
                                .padding()
                                .foregroundColor(.black)
                                .frame(width: 150, alignment: .center)
                                .background(
                                  RoundedRectangle(cornerRadius: 25)
                                      .stroke(Color.white, lineWidth: 2)
                                      .background(Color.white.cornerRadius(25)))
                                }
                        Button(action: {
                            bleController.stopScanning()
                                }) {
                            Text("STOP")
                                .font(.title)
                                .fontWeight(.bold)
                                .padding()
                                .foregroundColor(.black)
                                .frame(width: 150, alignment: .center)
                                .background(
                                  RoundedRectangle(cornerRadius: 25)
                                      .stroke(Color.white, lineWidth: 2)
                                      .background(Color.white.cornerRadius(25)))
                                }
                        }
                    }
        }
    }
}

struct BLEdevices_Previews: PreviewProvider {
    static var previews: some View {
        BLEdevices()
    }
}

我想在扫描周围环境后运行connectBLE功能。
因此，我的问题如下：
1.)在我扫描了整个区域后，我如何连接到特定的设备？我有问题从“peripheral.name”返回到CBPeripheral格式，我可以使用它来放入我的myCentral.connect函数。2.）在两个设备连接后，我如何在它们之间接收和传输数据？来自ESP 32的所有信号都通过来自ESP 32的通知使用单独的UUID传输，但是我不知道我是如何在Swift端获得/处理它们的。通过按钮“mode”和“light”，我想向ESP 32发送简单的ASCII代码。
如果有人能在这里帮助我，我将非常感激，因为我被卡住了。
最佳大卫

ios iPhone与ESP32之间的快速BLE通信

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