Improved Ethernet-gateway


  • Plugin Developer

    I did improve stability of ethernet-gateway in respect to reconnect:

    https://github.com/ntruchsess/MySensors/blob/ethernet_gw/libraries/MySensors/examples/EthernetGateway/EthernetGateway.ino#L125

    Issue with relying on server.available() + server.write() is that it allows to connect with multiple clients. That might be fine with other protocols, but doesn't make a lot of sense as the gateway is by design connected to a single controller only. It also has issues when (re-)connecting more than 4 times in a row without doing a proper shutdown of previous connections as both WIZ5100 and UIPEthernet support only a limited (4) connections in parallel and TCP-timeouts are quite long so the gateway wouldn't notice not being connected to a valid remote-socket any more if you e.g. do a hard power down and reboot of your controller.

    The change I made makes sure that whenever the controller reconnects any previous connection is properly removed by calling client.stop().

    Works using Arduino-IDE 1.0.6/1.5.7 (or later) as it makes use of operator== in EthernetClient (a change I added this to EthernetClient some month ago for this very purpose...)



  • @ntruchsess Good job, I had to do this to WIZ5200 too, although it has bigger buffers/supports more client connections. Same situation for Iboard PRO (with onboard NET, I think 5100)


Log in to reply
 

Looks like your connection to MySensors Forum was lost, please wait while we try to reconnect.