You should try again. I think that code is verbose because of the borrowing and ...

sophacles · on Nov 7, 2023

It reads like there's a bug in that example:

    loop {
        if button.is_high().unwrap() {
            led.set_high().unwrap();
        } else {
            led.set_low().unwrap();
        }
    }

Wouldn't you want to call set_low when is_high is true?

Also, woudn't the loop need a sleep to make the blinking be observable? this looks like it will be a roughly 50% pwm.

gaganyaan · on Nov 7, 2023

It's checking to see if the button is high, not the led. "blinky" is a slightly misleading name. It doesn't cycle the led automatically, it turns the led on when you press a button

It is a busy loop though, and in a real scenario you'd want to use interrupts instead of a loop like this.

sophacles · on Nov 8, 2023

Oh wow, I read "button" as "blinker" in that code...

Thanks for explaining it!