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--- 2016:yun_notes [2016/04/05 08:22] – created 75.177.137.2
+++ 2016:yun_notes [2016/04/05 08:26] (current) – 75.177.137.2
@@ Line 7: / Line 7: @@
      #include <pubsubclient.h>
      #include <yunclient.h>
      void callback(char* topic, byte* payload, unsigned int length) {
      // handle message arrived
      }
      YunClient yun;
      PubSubClient client("192.168.2.210", 1883, callback, yun);
      void setup()
      {
+     Bridge.begin();
+     }
+==== The aha Moment ====
+----
+Instead of doing this with EthernetClient, on say, a Duemilanove with an Ethernet shield:
+     #include <Ethernet.h>
+     ...
+     EthernetClient eth;
+     PubSubClient mqtt(MQTT_SERVER, MQTT_PORT, callback, eth);
+     ...
+     Ethernet.begin(mac);
+     ...
+     mqtt.connect(MQTT_CLIENTID, ....);
+you do this with the Yun:
+     #include <YunClient.h>
+     ...
+     YunClient yun;
+     PubSubClient mqtt(MQTT_SERVER, MQTT_PORT, callback, yun);
+     ...
      Bridge.begin();
+     ...
+     mqtt.connect(MQTT_CLIENTID, ....);
-     }
+The bridge opens the connection to the outside world from the Arduino via the OpenWRT host.