Why doesn't the updated Arduino Interfacing command "configurePin" work while "configureDigitalPin" and "configureAnalogPin" still do?

I am using an Arduino Uno interface to talk to an old spectrometer through Matlab. The paper I am basing the design on is a few years old, and used the "configureDigitalPin" command to set the input/output state of all the major pins at the start of the program. While clarifying a syntax thing I noticed the following message: "configureDigitalPin will be removed in a future release. Use configurePin instead."

I attempted to change over to the new command, but now every time run the command I get the following error: Undefined function 'configurePin' for input arguments of type 'arduino'." I am not sure what this means, but I can't seem to make it accept the function.

My full program works perfectly with the old command but I would like to switch over to the new command to prevent headaches later. Any ideas what could be going on?

Here is the test program I am using:

a = arduino('COM3','uno');
configurePin(a,2,'output')
clearvars a

Answer 1

[Walter Roberson]

configurePin is new as of R2015a . You might be looking at current documentation but using an older version.

Answer 2

[Madhu Govindarajan]

It would be helpful to know what release of MATLAB you are using etc. Because if you are getting an warning message that says configurePin then you might already have it. I am not sure, but for what it is worth (I am using MATLAB R2015a)-

When I tried your syntax, the error message that I got was 'Invalid pin format. Pin number must be a string. For example, 'D2' or 'A3'.'

When I changed the command to --> configurePin(a,'D7','output'), the error that I got was

Invalid digital pin mode. The mode must be a string. Valid mode values are: DigitalInput, DigitalOutput, Pullup, PWM, Servo, SPI, I2C, Unset.

Then I changed the command to --> configurePin(a,'D7','DigitalOutput') and everything worked