MQTT for IoT
Автор: Pierluigi Meloni (Gigio)
Загружено: 2017-04-24
Просмотров: 568
This video shows a simple application where 4 devices communicate usgin MQTT. The devices are: 2 Raspberry PI's, one Windows desktop PC and an Android phone. One of the 2 RPi's have one temperature and humidity sensor attached, the other one is set as MQTT broker and it also has a PI Face 2 DI/DO interface. The Windows and the android app are subscribed to the RPi temp and humidity reading so the broker get those reading from the second RPi and send them to the clients subscribing to those "topics"; they can also send commands to the PI face DO and red back the DI status.
All devices are coded with B4x with some phyton scripting "help" for the temp and humidity reading.
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