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feat: lcd works (soldering issue) and print an int to the display

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This commit is contained in:
cscherr 2025-05-19 14:28:43 +02:00
parent b56c8709d7
commit d1f9420703
Signed by: cscherrNT
GPG key ID: 8E2B45BC51A27EA7
1 changed files with 19 additions and 3 deletions
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22
examples/lcd.rs
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@ -2,6 +2,7 @@
#![no_std]
use defmt::info;
use heapless::String;
use panic_probe as _;
use defmt_rtt as _; // global logger
@ -50,8 +51,8 @@ fn main() -> ! {
.expect("could not init HD44780 driver");
lcd.set_display_mode(
hd44780_driver::DisplayMode {
cursor_visibility: hd44780_driver::Cursor::Visible,
cursor_blink: hd44780_driver::CursorBlink::On,
cursor_visibility: hd44780_driver::Cursor::Invisible,
cursor_blink: hd44780_driver::CursorBlink::Off,
display: hd44780_driver::Display::On,
},
&mut delay,
@ -62,10 +63,25 @@ fn main() -> ! {
.expect("could not write to LCD");
let mut i = 0;
let mut buf: String<20> = String::new();
loop {
led.set_high().unwrap();
info!("Writing to LCD...");
lcd.write_str("Hello world!\nGoing on", &mut delay)
lcd.clear(&mut delay).expect("could not clear the display");
lcd.set_cursor_pos(0, &mut delay)
.expect("could not move cursor to start");
lcd.write_str("Hello world!", &mut delay)
.expect("could not write to LCD");
lcd.set_cursor_pos(20, &mut delay)
.expect("could not move cursor to line 2");
buf.clear();
write!(&mut buf, "Iteration: {i}").expect("could not format text content for display");
lcd.write_str(&buf, &mut delay)
.expect("could not write to LCD");
info!("Done!");