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#1 Posted : Wednesday, October 11, 2017 5:56:03 AM(UTC)

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I really like the software but i have a question regarding the serial port function. I am new to this programming software. I am wondering how to create a program to listen to the serial port and echo back?

Edited by user Wednesday, October 11, 2017 8:48:12 AM(UTC)  | Reason: Not specified

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#2 Posted : Wednesday, October 11, 2017 1:12:03 PM(UTC)

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Could you tell me a little more about what you are trying to do? Do you mean you want to do that on the Arduino?

You would make a custom node, see this section of the docs.


  • Go to the Project tab (the tool tab with the Embrio logo).
  • Right click and make a new node definition.
  • Drag the definition onto a node screen, then open it up for editing by pressing the open arrow in the top right.
  • Click "touches pin" so that the node only runs on the Arduino.
  • Then the node code would be very similar to a simple Arduino program. In the setup handler you would do a serial.begin(), then in the Every Update handler you would do a serial.Read(), and if it gets data, send it out with a Serial.Print().

You might run into an issue though. While you're working in Embrio with a connected Arduino, they communicate over the serial port, so what you write might interfere. However in a final compiled program it shouldn't be a problem.

Is this part of a larger project? What else will you have going on?
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