MATLAB: Arduino Internal Pull Up Mode in Simulink

arduinomakerpin modesimulink

Is there a way to set the pin mode to pull up in Simulink? I see there is a method in MATLAB:

a = arduino('COM4','Uno');
configurePin(a,'D3','pullup');

How would I set this for my Simulink model? Thanks!

Best Answer

I created a custom device driver to solve my problem. The block can be found here: Arduino Pinmode Input Pull Up

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MATLAB: How to translate Arduino code to MATLAB code

You're in luck! MATLAB and Arudino support is very well documentated here. What it boils down to is just replacing classic Arduino IDE functions with their MATLAB equivalent, such as digitalread with readDigitalPin. I've gone ahead and done a rough translation of the code you attached and it should work but I do not have an arudino with me to test it with.

MOTION_PIN = 2; %% Pin connected to motion detector
LED_PIN = 13; %%  LED pin - active-high
  a = arduino('COM4','Uno')
  %%  The PIR sensor's output signal is an open-collector, 
  %%  so a pull-up resistor is required:
  pinMode(MOTION_PIN, INPUT_PULLUP);
  configurePin(a,MOTION_PIN,'Pullup')
  configurePin(a,LED_PIN, 'DigitalOutput');
while 1
  proximity = readDigitalPin(a,MOTION_PIN);
  if (proximity == 0) %% If the sensor's output goes low, motion is detected
  {
    writeDigitalPin(a,LED_PIN, 1);
    disp('Motion detected!');
  }
  else
  {
    writeDigitalPin(a,LED_PIN, 0);
  }
  end
end

MATLAB: Hey,I am using matlab 2014b and I am doing a project on measuring vi characteristics using arduino.

pinmode is for the "legacy" arduino package. You need to update your software to use configurepin() and writeDigitalPin and the like.

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MATLAB: How to translate Arduino code to MATLAB code

MATLAB: Hey,I am using matlab 2014b and I am doing a project on measuring vi characteristics using arduino.

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