Undefined function 'readVoltage' for input arguments of type 'arduino'.

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Aydin Nasirzadeh 2017-10-13

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https://ww2.mathworks.cn/matlabcentral/answers/361255-undefined-function-readvoltage-for-input-arguments-of-type-arduino

评论： Madhu Govindarajan 2018-10-24

I have a proper connection between MATLAB and an Arduino (Uno) board. When I first installed Arduino Package in MATLAB I was able to receive a signal from an analog pin on my Arduino board using readVoltage() function. However, after installing ArduinoIO package to add the so-called 'Arduino IO library' library in Simulink browser, I have started to get the following error every time I use the statement, say, readVoltage(a, 'A5'):

Undefined function 'readVoltage' for input arguments of type 'arduino'.

Just for info, I assign a new Arduino object beforehand by typing

a = arduino()

Nothing is really happening though. Any help is appreciated.

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采纳的回答

Madhu Govindarajan 2017-10-30

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https://ww2.mathworks.cn/matlabcentral/answers/361255-undefined-function-readvoltage-for-input-arguments-of-type-arduino#answer_288516

After you have established the communication with Arduino using a=arduino, could you type methods(a) and post the results here?

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Ricardo Ramirez 2018-10-23

So you just erased the packaged you installed? I got the same problem, and don't know what to do about it :(

Madhu Govindarajan 2018-10-24

@Ricardo - I guess all Aydin is saying - have only MATLAB Support package for Arduino and Simulink Support package for Arduino and this issue does not happen.

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