Function i16_to_4digits

pub fn i16_to_4digits(n: i16) -> [u8; 4]

Formats a i16 clamped between -999 and 9999, for a 4-digit display.

Example

A counter that goes from -100 to 100:

use tm1637_embedded_hal::{formatters::i16_to_4digits, mock::Noop, TM1637Builder};
use embedded_hal::delay::DelayNs;

let mut delay = Noop;
let mut tm = TM1637Builder::new(Noop, Noop, Noop).build_blocking::<4>();

tm.init().ok();

for i in -100..100 {
    let segs = i16_to_4digits(i);
    tm.display_slice(0, &segs).ok();

    delay.delay_ms(100);
}