use esp-println for logging to UART

src/bin/main.rs

@@ -10,13 +10,12 @@
 use defmt::info;
 use embassy_executor::Spawner;
 use embassy_time::Timer;
-use embedded_io::Write;
 use esp_hal::Blocking;
 use esp_hal::clock::CpuClock;
 use esp_hal::spi::master::{Spi, Config as SpiConfig};
 use esp_hal::time::Rate;
 use esp_hal::timer::timg::TimerGroup;
-use esp_hal::uart::{Config, Uart};
+use esp_println::println;
 use ws2812_rs::{WS2812SPI, SendColorBySPI, Color};
 
 #[panic_handler]
@@ -40,8 +39,6 @@ const LED_SPI_HZ: u32 = 3_200_000;
 async fn main(spawner: Spawner) -> ! {
   // generator version: 1.2.0
 
-  rtt_target::rtt_init_defmt!();
-
   let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
   let peripherals = esp_hal::init(config);
 
@@ -57,8 +54,7 @@ async fn main(spawner: Spawner) -> ! {
   let led = WS2812SPI::new(spi);
   spawner.spawn(heartbeat_task(led)).unwrap();
 
-  let uart0: Uart<Blocking> = Uart::new(peripherals.UART0, Config::default()).unwrap();
-  spawner.spawn(serial_task(uart0)).unwrap();
+  spawner.spawn(logging_task()).unwrap();
 
   info!("Padmapper initialized!");
 
@@ -86,9 +82,11 @@ async fn heartbeat_task(mut led: WS2812SPI<Spi<'static, Blocking>>) {
 }
 
 #[embassy_executor::task]
-async fn serial_task(mut uart: Uart<'static, Blocking>) {
+async fn logging_task() {
+  let mut i = 0u64;
   loop {
-    let _ = uart.write_all(b"Hello from Padmapper!\r\n").unwrap();
+    info!("Hello from Padmapper! {}\r\n", i);
     Timer::after_secs(1).await;
+    i += 1;
   }
 }