readDigitalPin

Read data from a specified pin on Arduino hardware

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

Syntax

value = readDigitalPin(a,pin)

Description

value = readDigitalPin(a,pin) reads data from the specified pin on the Arduino^® hardware in connection a.

Examples

Read the Value of a Digital Pin

Create a connection to Arduino hardware and read digital pin 13.

a = arduino;
readDigitalPin(a,'D13')

ans = 1

Input Arguments

a — Arduino hardware connection

object

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

pin — Pin number

character vector

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

Note

If you are using an analog pin to read a digital value, the pin will be configured in DigitalInput mode.

Output Arguments

value — value acquired from the pin

double

Value acquired from the pin, returned as a numeric double.

More About

Code Generation Using MATLAB Function Block

• Use readDigitalPin 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 readDigitalPin in the MATLAB Function block.

Version History

Introduced in R2014b