Module uart

Expand description

Controls UART peripherals (UART0, UART1, UART2).

Notice that UART0 is typically already used for loading firmware and logging. Therefore use UART1 and UART2 in your application. Any pin can be used for rx and tx.

§Example

Create a serial peripheral and write to serial port.

use std::fmt::Write;
use esp_idf_hal::prelude::*;
use esp_idf_hal::uart;

let peripherals = Peripherals::take().unwrap();
let pins = peripherals.pins;

let config = uart::config::Config::default().baudrate(Hertz(115_200));

let mut uart: uart::UartDriver = uart::UartDriver::new(
    peripherals.uart1,
    pins.gpio1,
    pins.gpio3,
    Option::<AnyIOPin>::None,
    Option::<AnyIOPin>::None,
    &config
).unwrap();

for i in 0..10 {
    writeln!(uart, "{:}", format!("count {:}", i)).unwrap();
}