可以使用Arduino Portenta H7板内置的蓝牙模块通过蓝牙连接到Windows系统。以下是一个简单的示例代码，演示了如何在Arduino Portenta H7板和Windows系统之间建立蓝牙连接并进行数据交换：

Arduino代码：

#include 

BLEService dataService("19b10010-e8f2-537e-4f6c-d104768a1214");
BLEUnsignedCharCharacteristic dataChar("19b10011-e8f2-537e-4f6c-d104768a1214", BLERead | BLEWrite);

void setup() {
  Serial.begin(9600);

  if (!BLE.begin()) {
    Serial.println("Failed to start Bluetooth");
    while (1);
  }

  BLE.setLocalName("Arduino Portenta H7");
  BLE.setAdvertisedService(dataService);

  dataService.addCharacteristic(dataChar);
  BLE.addService(dataService);

  dataChar.writeValue(0);

  BLE.advertise();
}

void loop() {
  BLEDevice central = BLE.central();

  if (central) {
    Serial.print("Connected to central: ");
    Serial.println(central.address());

    while (1) {
      if (dataChar.written()) {
        Serial.println("Data received");
        Serial.println(dataChar.value());

        // Handle the received data here

        dataChar.writeValue(0);
      }
    }
  }
}

Windows代码：

import bluetooth

server_address = '00:00:00:00:00:00' # Replace with the MAC address of the Arduino Portenta H7 board
port = 1

sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
sock.connect((server_address, port))

print('Connected to Arduino Portenta H7 board')

while True:
    data = input('Enter data to send: ')
    sock.send(data)

    data = sock.recv(1024)
    print('Received data: ', data)

sock.close()

在Windows系统上运行上述Python代码后，将提示输入要发送到Arduino Portenta H7板的数据。将任何数据输入到控制台中，然后按Enter键，数据将通过蓝牙发送到Arduino Portenta H7板。Arduino Portenta H7板将收到该数据并将其打印到串口监视器中。接下来，Arduino Portenta H7板将向Windows系统发送值0，并将其打印到Python控制台中。您可以在循环中添加代码来处理从Windows系统接