Unmable to make LED blink.

[grab-a-byte]

I have taken the code from https://rahul-thakoor.github.io/physical-computing-rust/step_6.html#flashing-an-led And tried to use the version not with a build method. The LED turns on, and does not turn off.

I added printlines to view as shown here

extern crate rust_gpiozero;

use rust_gpiozero::*;
use std::{thread::sleep, time::Duration};

fn main() {
    let mut led = LED::new(17);

    loop {
        println!("Turning on");
        led.on();
        println!("Is on");
        sleep(Duration::from_secs(1));
        println!("Turning off");
        led.off();
        println!("is on");
    }
}

Still no effect. If i kill the program and simply run the LED off, it turns off.

Using a Raspberry Pi Zero W with GPIO pins added on found here.

Crate version is 0.2.1

Any further information please feel free to ask.

Thanks in advance for any assistance/investigation.

[dcroote]

Hi @parkeradam - I've tested your code and found the issue: you need to add a sleep step after the LED is turned off. What is currently happening is that the loop ends with led.off(), then immediately restarts with led.on(), which results in the LED never turning off visually since this happens so quickly.

[dcroote]

I'm closing this issue given it has been addressed with the above comment. Feel free to reopen if that is not the case.