MQTT Node with Arduino Uno and W5100 Ethernet Shield

MQTT Node with Arduino Uno and W5100 Ethernet Shield
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By arduinolab.net
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mqtt_node_arduino_bboard.jpg

This tutorial shows how to build a basic IoT device using an Arduino Uno (R3) board equipped with an Ethernet Shield (W5100). The device is configured both as MQTT publisher (for publishing local sensor data) as well as subscriber  (for getting remote commands) to topics located on a local area networked MQTT server.

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