56a7553b2d
* Remove uneeded usb generics * Ensure all structs are consistently CamelCased * changelog
60 lines
1.6 KiB
Rust
60 lines
1.6 KiB
Rust
//! Blinks 3 LEDs
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//!
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//! This assumes that LEDs are connected to GPIO8, 9 and 10.
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//!
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//! GPIO1 is treated as an input, and will print a message when pressed. This
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//! Additionally demonstrates passing GPIO to a function in a generic way.
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//% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
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#![no_std]
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#![no_main]
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use esp_backtrace as _;
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use esp_hal::{
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clock::ClockControl,
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delay::Delay,
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gpio::{AnyPin, Input, Io, Output, PullDown, PushPull},
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peripherals::Peripherals,
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prelude::*,
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};
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
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// Set LED GPIOs as an output:
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let led1 = io.pins.gpio8.into_push_pull_output();
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let led2 = io.pins.gpio9.into_push_pull_output();
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let led3 = io.pins.gpio10.into_push_pull_output();
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// Set GPIO0 as an input:
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let button = io.pins.gpio0.into_pull_down_input().into();
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// You can use `into` or `degrade`:
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let mut pins = [led1.into(), led2.into(), led3.degrade().into()];
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// Initialize the `Delay` peripheral, and use it to toggle the LED state
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// in a loop:
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let delay = Delay::new(&clocks);
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loop {
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toggle_pins(&mut pins, &button);
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delay.delay_millis(500);
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}
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}
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fn toggle_pins(leds: &mut [AnyPin<Output<PushPull>>], button: &AnyPin<Input<PullDown>>) {
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for pin in leds.iter_mut() {
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pin.toggle();
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}
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if button.is_low() {
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esp_println::println!("Button pressed");
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}
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}
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