writePWMDutyCycle

Generate PWM signal with specified duty cycle on digital pin

Syntax

writePWMDutyCycle(a, pin, dutyCycle)

Add-On Required: This feature requires the MATLAB Support Package for Arduino Hardware add-on.

writePWMDutyCycle(a, pin, dutyCycle) sets the PWM duty cycle on a digital pin specified for the Arduino^® hardware a.

This example uses:

Specify a 0.33 duty cycle for an LED attached to digital pin 5 on Arduino hardware.

a = arduino();
writePWMDutyCycle(a,'D5',0.33);

Arduino hardware connection created using arduino, specified as an object.

Digital pin number on the physical hardware, specified as a character vector.

Value of digital pin’s PWM duty cycle specified as number between 0 and 1.

The average voltage at the digital pin is the product of dutyCycle and VCC voltage of the Arduino board. The VCC can either be 3.3V or 5V.

Use writePWMDutyCycle in a MATLAB^® Function block with the Simulink^® Support Package for Arduino Hardware to generate code that can be deployed on Arduino Hardware.
Configure the Arduino peripherals to the appropriate mode using configurePin before using writePWMDutyCycle in the MATLAB Function block.

Introduced in R2014b