Can't use serial send with arduino uno board

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Eduardo on 20 Nov 2015
Answered: ErfanH on 14 Mar 2019
I'm trying to create a simple model that reads data from an arduino by using the 'Serial Receive' block, but whenever I try to select a port and apply changes I get the following error:
I already tested this on another laptop and got the same result.

Answers (2)

Madhu Govindarajan
Madhu Govindarajan on 23 Nov 2015
I got the same error when trying to use Serial Send which is from the Instrument Control Toolbox, however it went away when I used the Serial Transmit block from Simulink support package for Arduino. I think this is an expected behavior.

ErfanH on 14 Mar 2019
you should disconnect your arduino first then close the simulink and matlab
then re open matlab and connect the arduino to the pc then open the simulink then you can use the block without any problem

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