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Scoop.it!
Los Broker (O servidores) MQTT, se han ido convirtiendo en una pieza indispensable para los que hacemos pequeños proyectos de IOT, tanto domésticos como por encargo. Nos resuelven un problema básico de los sensores, enviar información a un servidor central o recibir órdenes de una forma sencilla y eficiente- 
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Scoop.it!
Cayenne, Python and MQTT Tutorials-2 - Digital Output: Turn on a LED or lamp or relay from anywhere with Cayenne IOT Dashboard.This tutorial will show you how to turn a LED on and off from Cayenne IOT Dashboard.
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Scoop.it!
In previous tutorial we have discussed about MQTT Protocol and installed local MQTT server on our Raspberry Pi for controlling the GPIO locally. But the drawback of local MQTT server is that we cannot control the GPIOs from anywhere in the world, it only provides services locally. But if this MQTT server is hosted on some cloud then any appliances connected to Raspberry Pi can be controlled globally. Here, in this tutorial, we will use Adafruit IO as MQTT broker to control an AC appliance connected to Raspberry Pi GPIO. Also check other IoT controlled Home Automation tutorials:
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