两个Raspberry Pi 4之间的BLE通信

# Raspberry Pi 1
import bluetooth

server_socket = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
server_socket.bind(("", bluetooth.PORT_ANY))
server_socket.listen(1)

port = server_socket.getsockname()[1]

uuid = "00001101-0000-1000-8000-00805F9B34FB"  # UUID for SPP service

bluetooth.advertise_service(server_socket, "Raspberry Pi 1", service_id=uuid,
                            service_classes=[uuid, bluetooth.SERIAL_PORT_CLASS],
                            profiles=[bluetooth.SERIAL_PORT_PROFILE])

print("Waiting for connection on RFCOMM channel %d" % port)

client_socket, client_info = server_socket.accept()
print("Accepted connection from", client_info)

# Receive data from the client
data = client_socket.recv(1024)
print("Received:", data)

# Send data back to the client
client_socket.send("Hello from Raspberry Pi 1!")

client_socket.close()
server_socket.close()

# Raspberry Pi 2
import bluetooth

server_address = "XX:XX:XX:XX:XX:XX"  # Replace with the Bluetooth address of Raspberry Pi 1
port = 1  # Port number on Raspberry Pi 1

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

# Send data to Raspberry Pi 1
client_socket.send("Hello from Raspberry Pi 2!")

# Receive data from Raspberry Pi 1
data = client_socket.recv(1024)
print("Received:", data)

client_socket.close()