echoudp
Start or stop echo UDP server
Description
Examples
Communicate with an Echo UDP Server
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("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(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.
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
Input Arguments
port
— Port number of the server
numeric
Port number of the server, specified as a number between 1 and 65535, inclusive.
Data Types: double
Version History
Introduced before R2006a
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