Arduino Uno - sending UDP message

Forum 2005-2010 (read only) Software Development
1

Hello!
Everyone knows how can I to send UDP messages from arduino? I could to send HTTP messages only.
You knows some nice UDP librarie?
Thanks !

2

there is an specific UDP packet in this article - Arduino Playground - DS1307OfTheLogshieldByMeansOfNTP - to get an NTP timestamp from a time server. Its at the end of the sketch ..

3

Since (I think) Arduino 0019, and definitely by Arduino 0021 there is a UDP API in the core Ethernet library. If you look at the Ethernet examples there are two that use UDP.

Unfortunately, the API is due to change a little in the next release (or maybe the one after). See Streaming UDP API changes (Issue 439) by amcewen · Pull Request #19 · arduino/Arduino · GitHub for details of the proposed changes.