Send multiple bytes using Arduino UDP send block?

Is it possible to send more than one byte of data in a UDP message using the Arduino UDP send block from the Support package from Arduino hardware?

Answer 1

[Walter Roberson]

Yes. Up to 24 bytes if you are using the Ethernet Shield; I do not know the limit if you are not using the Ethernet Shield. http://www.mathworks.com/help/supportpkg/arduino/ug/udpsend.html

[Chris]

Hi Walter, thanks for your answer. Do you know the correct way to input the data into the Arduino UDP send block to send multiple bytes? I have tried using a mux but I get an error in port widths or dimensions.

[Walter Roberson]

Possibly this example will help: http://www.mathworks.com/help/supportpkg/arduino/examples/using-ethernet-shield-with-arduino-hardware.html and possibly the same is http://www.mathworks.com/examples/simulink/4512-using-ethernet-shield-with-arduino-reg-due-hardware

I see from another page that you might need a "pack block"; see http://www.mathworks.com/matlabcentral/answers/99695-how-is-binary-data-formatted-when-sending-through-udp-send-block-of-an-xpc-target