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hideakitai / ArtNet

Art-Net Sender/Receiver for Arduino (Ethernet, WiFi)
MIT License
257 stars 52 forks source link

Encode one port per one `ArtPollReply` is preferred #81

Closed hideakitai closed 9 months ago

hideakitai commented 10 months ago

Currently, four ports are encoded and limited to four ports.

Art-Net devices can send multiple ArtPollReply in order to publish a number of ports greater than 4. The sequence of ArtPollReply is differentiated by the BindIndex. ArtPollReply can encode the information for 4 input ports and 4 output ports; however they must all share the most significant 11-bits of the Port-Address. For this reason, the preferred implementation in Art-Net 4 is to encode only one port per ArtPollReply. If a product has 16 output ports, it will send 16 ArtPollReply using binding.

https://art-net.org.uk/how-it-works/discovery-packets/artpollreply/