38 lines
771 B
Plaintext
38 lines
771 B
Plaintext
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/*
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Basic MQTT example
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- connects to an MQTT server
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- publishes "hello world" to the topic "outTopic"
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- subscribes to the topic "inTopic"
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*/
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#include <SPI.h>
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#include <Ethernet.h>
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#include <PubSubClient.h>
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// Update these with values suitable for your network.
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byte mac[] = { 0xDE, 0xED, 0xBA, 0xFE, 0xFE, 0xED };
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byte server[] = { 172, 16, 0, 2 };
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byte ip[] = { 172, 16, 0, 100 };
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void callback(char* topic, byte* payload, unsigned int length) {
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// handle message arrived
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}
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PubSubClient client(server, 1883, callback);
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void setup()
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{
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Ethernet.begin(mac, ip);
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if (client.connect("arduinoClient", "testuser", "testpass")) {
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client.publish("outTopic","hello world");
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client.subscribe("inTopic");
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}
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}
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void loop()
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{
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client.loop();
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}
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