jan$24$a$.$ino

int buttonPin $=2$;

int ledPin $=13$;

$//$ variables will change:

$//$ the number of the pushbutton pin

$\}$

$//$ the number of the LED pin

$//$ variable for reading the pushbutton status

int buttonstate;

int ledState $=$ LOW; $//$ variable to store the LED state: HIGH $=$ on$,$ LOW $=$ off

void setup$()\{$ pinMode$(2,$ INPUT$)$; pinMode$(13,$ OUTPUT$)$;

$\}$

void

$//$ read the state of the pushbutton value: buttonState $=$ digitalRead$($ buttonPin $)$;

$//$ If the button has been pressed, and the LED is OFF

if $($ buttonstate $==$ ON && ledState $==$ LOW$)$ turn LED on:

digitalWrite$(13,$HIGH$)$ ;

ledState $=$ ON;

$\}$

$//$If the button has been pressed, a nd the LED is ON

else if $($buttonstate $==$ OFF & ledState $==$ HIGH$)$ turn LED off:

digitalWrite$(13,$ LOW$)$ ;

ledState $=$ OFF ;

$\}$

delay$(100)$; $//$ delay in order to give some time to read the button press

$//$you can change this value and observe the difference

$\}$

Output

$/$private$/$var$/$folders$/$sf$/$rlcqfn$\_552$d$3$l$9$kmwln$6$l$6$qh$0000$gn$/$T$/.$arduinoIDE$-$unsaved$2024024-35185-$abiv$4$q$.$umon$/$sketch$\_$jan$24$a$/$sketch$\_$jan$24$a$.$ ino:$5$:$1$: error: expected declaration