Using a rotary encoder with arduino mega and MATLAB

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Derick Ghoda
Derick Ghoda on 28 Jul 2017
Edited: Qais El-Bakaein on 17 Jan 2018
I've tried to run the following example code I obtained from mathwoks website ( https://www.mathworks.com/help/supportpkg/arduinoio/ref/rotaryencoder.html ). I get the following error when I try to create a rotary encoder object:
>> a = arduino('COM4','Uno','Libraries','rotaryEncoder');
Invalid value 'rotaryEncoder' for Libraries. Valid libraries are
'Adafruit/MotorShieldV2, I2C, SPI, Servo, ShiftRegister'.
Do I need to install something in order to use the rotary encoder library, if so what library should I install ? I've already installed the MATLAB and SIMULINK support packages for arduino. Thanks in advance for your help.
  3 Comments
Qais El-Bakaein
Qais El-Bakaein on 17 Jan 2018
Hey, i have the same problem and I have R2017b, what could the problem be? thanks

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Answers (1)

Akhilesh Thakur
Akhilesh Thakur on 31 Jul 2017
This feature is introduced in R2017a. Check the version. If you are unable to do that check this link https://www.mathworks.com/help/supportpkg/arduinoio/quadrature-encoders.html. You need to go through this there are sample examples that can help you.
Best Akhilesh

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