use std::{thread::sleep, time::Duration}; use b15f::b15f::B15F; fn main() -> Result<(), String> { let mut drv = B15F::new()?; let mut position = 0; let mut direction = 1; loop { drv.digital_write::<0>(1 << position)?; position += direction; if position >= 7 || position <= 0 { direction *= -1; } sleep(Duration::from_millis(40)); } }