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The nrf library allows us to send only integers , characters , bytes but not Strings objects (you can definitely send character arrays i.e strings). But it is really easy to communicate from Processing to Arduino using String objects because of the ease and the many ways in which we can manipulate Strings in complex ways. Unfortunately we can’t do anything about that , so here we will send a String object from Processing , store it in a byte/character array in Arduino then we will send that from one node to other.

As you saw in the last video how we controlled a set of leds by providing input from processing to Arduino(which was meant to be a simplified simulation of a more realistic situation where u control a set of actuators). After that we clearly see the limitations that we have to carry the laptop wherever the bot…

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