controlling raspberry pi's output via thingspeak

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my question is that, is it possible to control pi's output say (i would like to control led ) via thingspeak channel.....as in simulink there is no block for receiving data from thingspeak channel.
Please suggest any way to overcome this problem.

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Hans Scharler
Hans Scharler 2017-11-10
ThingSpeak supports both REST and MQTT. If you use MQTT, updates to a channel's feed will be sent immediately to a client subscribed to the ThingSpeak MQTT broker.

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