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Arduino DC Motor controlled by EJS post and replies

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Arduino DC Motor controlled by EJS - Mar 24 at 2:46PM
Mirka Kouka
5 Posts

Hello,

I want to control the speed of a DC Motor using the arduino element of the EJS.

In the Initialization page I have the following command: arduino.setDigitalMode(9,3); which according to the documentation sets the mode of a digital pin 9 to PWM.

Then in the fixed relations page I have the command: arduino.writeDigital(9,speed); where speed is an integer variable with values between 0 and 255.

I get a compilation error by this second command "Some messages have been simplified; recompile with -Xdiags:verbose to get full output"

Does anyone know what's wrong with my code?

Thank you!


Replies to Arduino DC Motor controlled by EJS

Re: Arduino DC Motor controlled by EJS - Mar 26 4:19PM
Francisco Esquembre
216 Posts

writeDigital(int pinNumber, boolean state) is used for a digital output.
What you want is to generate a PWM output. Therefore, you need to use the command
writeDigitalValue(int pinNumber, int value), instead.

Paco



Re: Re: Arduino DC Motor controlled by EJS - Mar 27 1:52AM
Mirka Kouka
5 Posts

Paco,

thank you very much for your help. It worked with your suggestion.

The confusion was because of the arduino documentation in ejs. It refers to a function writeDigital(int pinNumber, boolean state) and to another function writeDigital(int pinNumber, int value).

Thanks again!



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