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How to speak from Arduino to Python and back

Article

While I have work on my pet project( a network of sensors) I have faced with the task to send data from Arduino to python backend and back.

At first, I want to say that I didn't use HTTP requests because my Arduino nodes don't have the internet connections just radio network to "Hub". And Hub retranslates what he receive by the radio channel to MQTT broker via the internet.

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    2016-12-19 16:00:00      python arduino microcontroller protobuf