69 lines
2.0 KiB
Rust
69 lines
2.0 KiB
Rust
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#![no_std]
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#![no_main]
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mod backlight;
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mod led;
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use esp_backtrace as _;
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use esp_bootloader_esp_idf::esp_app_desc;
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use esp_hal::ledc::timer::{self, TimerIFace};
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use esp_hal::ledc::{LSGlobalClkSource, Ledc, LowSpeed};
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use esp_hal::{init, rmt::Rmt, time::Rate, Config};
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use esp_println::println;
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use smart_leds::hsv::{hsv2rgb, Hsv};
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use smart_leds::{brightness, gamma};
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esp_app_desc!();
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#[esp_hal::main]
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fn main() -> ! {
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let peripherals = init(Config::default());
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let mut led = {
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let rmt = Rmt::new(peripherals.RMT, Rate::from_mhz(80)).expect("Failed to init RMT");
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led::RgbLed::new(rmt.channel0, peripherals.GPIO8).expect("Failed to init RGB LED")
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};
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let mut ledc = Ledc::new(peripherals.LEDC);
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ledc.set_global_slow_clock(LSGlobalClkSource::APBClk);
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let mut timer = ledc.timer::<LowSpeed>(timer::Number::Timer0);
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timer
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.configure(timer::config::Config {
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duty: timer::config::Duty::Duty8Bit,
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clock_source: timer::LSClockSource::APBClk,
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frequency: Rate::from_khz(5),
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})
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.expect("Failed to configure backlight timer");
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let mut backlight =
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backlight::LcdBacklight::new(&timer, peripherals.GPIO22).expect("Failed to init backlight");
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let delay = esp_hal::delay::Delay::new();
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let levels = [1.0f32, 0.75, 0.5, 0.25, 0.0, 0.5];
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let mut level_idx = 0;
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loop {
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for hue in 0..=255 {
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let rgb = hsv2rgb(Hsv {
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hue,
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sat: 255,
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val: 255,
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});
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let lit = brightness(gamma(core::iter::once(rgb)), 40)
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.next()
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.unwrap();
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led.set_rgb(lit).unwrap();
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if hue % 32 == 0 {
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println!("hue {hue}: ({}, {}, {})", lit.r, lit.g, lit.b);
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}
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delay.delay_millis(10);
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}
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let level = levels[level_idx % levels.len()];
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backlight.set_level(level).unwrap();
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println!("backlight level: {level}");
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level_idx += 1;
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}
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}
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