Arduino Encoder Application with Simulink Problem

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Berke Ogulcan Parlak 2020-3-1

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https://ww2.mathworks.cn/matlabcentral/answers/508398-arduino-encoder-application-with-simulink-problem

评论： Berke Ogulcan Parlak 2020-3-11

 Hi, I'm using the Arduino Support Package for Simulink Toolbox. My goal is to make a counter that counts up when it rotates clockwise and counts down when it rotates counterclockwise by using KY-040 Encoder. I can read all values appropriately. (Encoder has 2 output pins, OutA and OutB, and they produce digital signals.) My problem is to take the values I read from the OutA pin and compare them with the new values. Which blocks should I use for this?

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J Chen 2020-3-2

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https://ww2.mathworks.cn/matlabcentral/answers/508398-arduino-encoder-application-with-simulink-problem#answer_418096

You can use Simulink Delay block which store you last data. Type delay in the search box in the Simulink Library Browser to locate the block.

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J Chen 2020-3-11

untitled.mdl

2017b version is attached.

Berke Ogulcan Parlak 2020-3-11

Hi!, Chan. The block diagram works really well with this state. However, when I connect the encoder to the input, the count is delayed. I think this problem occurs because I don't use interrupt. But when I use the external interrupt block, although my encoder is 20 pulse / rev, I read values like 500-600 and it is not stable. Do you have any advice for counting pulses with interrupt? Thank u!

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