python - 如何回答 ACK teltonika

Question

我有一个用 python 编写的代码，接收到的信息来自设备是 FMB920，这是我的代码：

import socket
from ast import literal_eval
from process import add_trama

localIP     = "104.248.56.204"


localPort   = 7777

bufferSize  = 1024

 

msgFromServer       = "1"

bytesToSend         = str.encode(msgFromServer)

 

# Create a datagram socket

UDPServerSocket = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)

 

# Bind to address and ip

UDPServerSocket.bind((localIP, localPort))

 

print("UDP server up and listening")

 

# Listen for incoming datagrams

while(True):

    bytesAddressPair = UDPServerSocket.recvfrom(bufferSize)

    message = bytesAddressPair[0]

    address = bytesAddressPair[1]

    clientMsg = "Message from Client:{}".format(message)
    clientIP  = "Client IP Address:{}".format(address)
    
    mymessage=message.hex()
    
    #add_trama(mymessage.upper())


    
    # Sending a reply to client

    UDPServerSocket.sendto(bytesToSend, address) 

我的问题是如何正确地向设备发送正确接收到的消息并且它不会再次向我发送相同的信息，我使用以下代码：

# Sending a reply to client

UDPServerSocket.sendto(bytesToSend, address) 

但它对我不起作用，感谢您的帮助。

标签： pythonudpudpclientteltonika