A simple UDP communications application

Sends/receives UDP packets using Matlab's Java interface.
Updated 22 Jul 2021

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UDP packets are used to send data from one computer to another over a network or from one application to another within a single computer.
The judp.m program uses Matlab's ability to call Java code to enable it to send and/or receive UDP packets. One Matlab session can communicate with another Matlab session (on the same machine or over the network) or it can communicate with a completely different program (again, on the same machine or over the network).

Cite As

Kevin Bartlett (2024). A simple UDP communications application (https://www.mathworks.com/matlabcentral/fileexchange/24525-a-simple-udp-communications-application), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2009a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Inspired by: TCP/IP Socket Communications in MATLAB

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Version Published Release Notes

At suggestion of Dennie Craane, added ability to specify a source port number in addition to the target port number when sending packets.

Forgot to attach new version of judp.m on last update.

Added socket.setReuseAddress(1) in order to make reuse of port numbers more reliable after pressing ctrl-C (thanks to Adam Becker for the suggestion). Also tidied up some MLint messages.