How to control time?

Good morning. I am newbie to matlab. Using Arduino and gui, I want to make the motor run for 10 minutes, 20 minutes, 30 minutes, and run for a certain amount of time and turn off the device, but I don't know how to do it. Thanks for letting us know.

Answer 1

[Chetan]

Hi @종혁 원,

Based on your requirement to control a motor via Arduino from a MATLAB GUI for predetermined durations (10, 20, 30 minutes, etc.) and then automatically turn it off, follow these steps:

1. Install MATLAB Support Package for Arduino: This package allows MATLAB to communicate with your Arduino.
2. Create a GUI in MATLAB: Utilize App Designer to create a graphical interface with buttons for each duration.
3. Program Motor Control: Develop MATLAB functions that are executed when GUI buttons are pressed. These functions will control the motor's run time using the `pause(durationInSeconds)` function for timing.

Here is a sample function for the same:

function controlMotor(durationMinutes)
    a = arduino(); % Connect to Arduino
    motorPin = 'D3'; % Example motor pin
    writeDigitalPin(a, motorPin, 1); % Start motor
    pause(durationMinutes * 60); % Wait
    writeDigitalPin(a, motorPin, 0); % Stop motor
end

Make sure to replace `'D3'` with the pin your motor is connected to.

Refer to the following MathWorks documentation for more details:

• https://www.mathworks.com/hardware-support/arduino-matlab.html
• https://www.mathworks.com/products/matlab/app-designer.html

Thanks

Chetan