Control LEDs

This example shows how to configure LEDs to turn on and off and to dim and brighten using MATLAB® commands.

Connect an LED to pin 9 and GND on your Arduino® hardware.

Create an arduino object.

a = arduino;

Write data to the digital pin to turn the LED on and off repeatedly for 10 seconds.

for idx = 0:10
    writeDigitalPin(a,'D9',1);
    pause(0.5);
    writeDigitalPin(a,'D9',0);
    pause(0.5);
end

Change the brightness from maximum to minimum using the digital pin's PWM duty cycle.

for brightness = 1:-0.1:0
    writePWMDutyCycle(a,'D9',brightness);
    pause(0.5);
end

Once the connection is no longer needed, clear the arduino object.

clear a