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Start or stop echo UDP server
echoudp("on",port)
echoudp("off")
echoudp("on",port) starts a UDP server at the specified port number.
port
example
echoudp("off") stops the echo server.
collapse all
This example shows how to set up an echo UDP server.
Start the echoserver using the echoudp function on port 4012. Create a udpport instance to communicate with the echo server.
echoudp
udpport
echoudp("on",4012) u = udpport
u = UDPPort with properties: IPAddressVersion: "IPV4" LocalHost: "0.0.0.0" LocalPort: 58379 NumBytesAvailable: 0 Show all properties, functions
Write data using the write function to the echo server running on port 4012.
write
write(u,1:10,"uint8","127.0.0.1",4012);
The echo server sends back the data written to it. Read this data back using the read function.
read
data = read(u,10)
data = 1×10 1 2 3 4 5 6 7 8 9 10
Stop the echo server and clear the udpport object.
echoudp("off") clear u
Port number of the server, specified as a number between 1 and 65535, inclusive.
Data Types: double
double
Introduced before R2006a
udpport | tcpclient | echotcpip
tcpclient
echotcpip
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