user50467: There is blink project consisting 3 sections: 
1 - regulation of the led brightness using a potentiometer
2 - whenever: the button is pressed - the led is on
-   the button is released - the led is off
3 - change state of a led statically
The question is that:
May I make this project on-board?
I am curious that, if I will try making this project on-board (Arduino UNO) will the Arduino damaged?

user50170: Pin 13, which is the on-board LED, is not a pwm pin. So you cannot Control the brightness of that LED on-board. You will have to use another LED and a PWM pin. 

50467: <p>There is <strong>blink project</strong> consisting 3 sections: </p>

<p><strong><em>1 - regulation of the led brightness using a potentiometer</em></strong></p>

<p><strong><em>2 - whenever: the button is pressed - the led is on</em></strong></p>

<p><strong><em>-   the button is released - the led is off</em></strong></p>

<p><strong><em>3 - change state of a led statically</em></strong></p>

<p>The question is that:</p>

<p>May I make this project on-board?
I am curious that, if I will try making this project on-board (Arduino UNO) will the Arduino damaged?</p>
 50170: <p>Pin 13, which is the on-board LED, is not a pwm pin. So you cannot Control the brightness of that LED on-board. You will have to use another LED and a PWM pin. </p>
