feat: create hardware example tester and exapp-k-timer

Cargo.lock

@@ -725,6 +725,12 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "format_no_std"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ae45e32b0bfe2c62c805f8e87027b5aa08562000326edbc5b421ab6d92873a7"
+
 [[package]]
 name = "fugit"
 version = "0.3.7"
@@ -861,17 +867,20 @@ dependencies = [
  "esp-hal",
  "esp-hal-embassy",
  "esp-println",
+ "format_no_std",
  "heapless 0.8.0",
  "kolibri-embedded-gui",
  "mipidsi",
+ "profont",
  "static_cell",
+ "ufmt",
  "xpt2046",
 ]
 
 [[package]]
 name = "kolibri-embedded-gui"
 version = "0.0.0-alpha.1"
-source = "git+https://github.com/Yandrik/kolibri.git?branch=optimizations#1bd7d733a6772f208a8a08f05cf33f5467c02d34"
+source = "git+https://github.com/Yandrik/kolibri.git?branch=optimizations#f3e92212ac29431561748e6c37427651b3151bc4"
 dependencies = [
  "embedded-graphics",
  "embedded-iconoir",
@@ -1039,6 +1048,15 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "profont"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "016681370a9dd6e7ddb4c1a959922fd59dc45e5ebaa5ff5b13090267898ced34"
+dependencies = [
+ "embedded-graphics",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.37"
@@ -1266,6 +1284,27 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "ufmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a64846ec02b57e9108d6469d98d1648782ad6bb150a95a9baac26900bbeab9d"
+dependencies = [
+ "ufmt-macros",
+ "ufmt-write",
+]
+
+[[package]]
+name = "ufmt-macros"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d337d3be617449165cb4633c8dece429afd83f84051024079f97ad32a9663716"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "ufmt-write"
 version = "0.1.0"

app/Cargo.toml

@@ -8,6 +8,9 @@ rust-version = "1.76.0"
 name = "firmware"
 path = "src/bin/firmware.rs"
 
+[[bin]]
+name = "kolibri-timer"
+
 [[bin]]
 name = "xpt"
 path = "src/bin/xpt.rs"
@@ -36,9 +39,12 @@ esp-backtrace    = { version = "0.14.1", features = ["esp32", "println", "except
 esp-hal          = { version = "0.20.1", features = ["esp32", "log", "async"] }
 esp-hal-embassy  = { version = "0.3.0",  features = ["esp32", "log"] }
 esp-println = { version = "0.11.0", features = ["esp32", "log"] }
+format_no_std = "1.2.0"
 heapless = { version = "0.8.0", features = ["serde"] }
 kolibri-embedded-gui = { git = "https://github.com/Yandrik/kolibri.git", version = "0.0.0-alpha.1", branch = "optimizations" }
 mipidsi = "0.8.0"
+profont = "0.7.0"
 static_cell      = { version = "2.1.0",  features = ["nightly"] }
+ufmt = "0.2.0"
 xpt2046 = { git = "https://github.com/Yandrik/xpt2046.git", version = "0.3.1" }
 

app/src/bin/basic-cyd-kolibri-stats.rs

@@ -0,0 +1,244 @@
+#![no_std]
+#![no_main]
+
+use core::cell::RefCell;
+use core::cmp::min;
+use display_interface_spi::SPIInterface;
+use embassy_embedded_hal::shared_bus::blocking::spi::SpiDevice;
+use embassy_executor::Spawner;
+use embassy_sync::{
+    blocking_mutex::{raw::NoopRawMutex, NoopMutex},
+    signal::Signal,
+};
+use embassy_time::{Duration, Timer};
+use embedded_graphics::{
+    mono_font::ascii,
+    pixelcolor::Rgb565,
+    prelude::{DrawTarget, Point, RgbColor},
+};
+use embedded_graphics_profiler_display::ProfilerDisplay;
+use esp_backtrace as _;
+use esp_hal::{
+    clock::ClockControl,
+    gpio,
+    gpio::{GpioPin, Input, Io, Level, Output, Pull, NO_PIN},
+    peripherals::{Peripherals, SPI2, SPI3},
+    prelude::*,
+    rtc_cntl::Rtc,
+    spi::{master::Spi, FullDuplexMode, SpiMode},
+    system::SystemControl,
+    timer::{timg::TimerGroup, OneShotTimer},
+};
+use esp_println::println;
+use kolibri_cyd_tester_app_embassy::Debouncer;
+use kolibri_embedded_gui::{
+    button::Button,
+    label::Label,
+    smartstate::SmartstateProvider,
+    style::medsize_rgb565_style,
+    ui::{Interaction, Ui},
+};
+use kolibri_embedded_gui::helpers::keyboard::draw_keyboard;
+use mipidsi::{
+    models::{ILI9486Rgb565, ILI9486Rgb666},
+    options::{ColorInversion, ColorOrder, Orientation, Rotation},
+    Builder,
+};
+use static_cell::{make_static, StaticCell};
+use xpt2046::Xpt2046;
+
+#[embassy_executor::task]
+async fn touch_task(
+    touch_irq: GpioPin<36>,
+    spi: &'static mut NoopMutex<RefCell<Spi<'static, SPI3, FullDuplexMode>>>,
+    touch_cs: GpioPin<33>,
+    touch_signal: &'static Signal<NoopRawMutex, Option<Point>>,
+) -> ! {
+    let mut touch_driver = Xpt2046::new(
+        SpiDevice::new(spi, Output::new(touch_cs, Level::Low)),
+        Input::new(touch_irq, Pull::Up),
+        xpt2046::Orientation::LandscapeFlipped,
+    );
+    touch_driver.set_num_samples(16);
+    touch_driver.init(&mut embassy_time::Delay).unwrap();
+
+    let mut debounce = Debouncer::new();
+    println!("touch task");
+
+    loop {
+        touch_driver.run().expect("Running Touch driver failed");
+        if touch_driver.is_touched() {
+            let point = touch_driver.get_touch_point();
+            touch_signal.signal(Some(Point::new(point.x + 25, 240 - point.y)));
+        } else {
+            touch_signal.signal(None);
+        }
+        Timer::after(Duration::from_millis(1)).await; // 100 a second
+
+        // Your touch handling logic here
+    }
+}
+
+#[main]
+async fn main(spawner: Spawner) {
+    let peripherals = Peripherals::take();
+    let system = SystemControl::new(peripherals.SYSTEM);
+    let mut clocks = ClockControl::boot_defaults(system.clock_control).freeze();
+
+    // Enable the RWDT watchdog timer:
+    let mut rtc = Rtc::new(peripherals.LPWR);
+    rtc.rwdt.set_timeout(2.secs());
+    rtc.rwdt.enable();
+    println!("RWDT watchdog enabled!");
+
+    // Initialize the SYSTIMER peripheral, and then Embassy:
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
+    esp_hal_embassy::init(&clocks, timg0.timer0);
+    println!("Embassy initialized!");
+
+    let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
+    // let mut led = Output::new(io.pins.gpio5, Level::High);
+    // Initialize SPI
+    let sclk = io.pins.gpio14;
+    let miso = io.pins.gpio12;
+    let mosi = io.pins.gpio13;
+    let cs = io.pins.gpio15;
+    let dc = io.pins.gpio2;
+    let mut backlight = Output::new(io.pins.gpio21, Level::Low);
+
+    // Note: RST is not initialized as it's set to -1 in the instructions
+
+    // up to 80MHz is possible (even tho the display driver isn't supposed to be
+    // that fast) Dataseheet sais 10MHz, so we're gonna go with that
+    let mut spi = Spi::new(peripherals.SPI2, 10.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(sclk),
+        Some(mosi),
+        Some(miso),
+        NO_PIN,
+    );
+
+    static DISP_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI2, FullDuplexMode>>>> =
+        StaticCell::new();
+    let spi_bus = NoopMutex::new(RefCell::new(spi));
+    let spi_bus = DISP_SPI_BUS.init(spi_bus);
+
+    let di = SPIInterface::new(
+        SpiDevice::new(spi_bus, Output::new(cs, Level::Low)),
+        Output::new(dc, Level::Low),
+    );
+    let display = Builder::new(ILI9486Rgb565, di)
+        .orientation(Orientation {
+            rotation: Rotation::Deg90,
+            mirrored: true,
+        })
+        .color_order(ColorOrder::Bgr)
+        .invert_colors(ColorInversion::Inverted)
+        .init(&mut embassy_time::Delay)
+        .unwrap();
+
+    let mut display = ProfilerDisplay::new(display);
+
+    {
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.clear_background().ok();
+    }
+    backlight.set_high();
+
+    // init touchscreen pins
+    let touch_irq = io.pins.gpio36;
+    let touch_mosi = io.pins.gpio32;
+    let touch_miso = io.pins.gpio39;
+    let touch_clk = io.pins.gpio25;
+    let touch_cs = io.pins.gpio33;
+
+    // 2MHz is the MAX! DO NOT DECREASE! This is really important.
+    let mut touch_spi = Spi::new(peripherals.SPI3, 2.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(touch_clk),
+        Some(touch_mosi),
+        Some(touch_miso),
+        NO_PIN,
+    );
+    static TOUCH_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI3, FullDuplexMode>>>> =
+        StaticCell::new();
+    let touch_spi_bus = NoopMutex::new(RefCell::new(touch_spi));
+    let touch_spi_bus = TOUCH_SPI_BUS.init(touch_spi_bus);
+
+    let touch_signal = Signal::new();
+    static TOUCH_SIGNAL: StaticCell<Signal<NoopRawMutex, Option<Point>>> = StaticCell::new();
+    let touch_signal = &*TOUCH_SIGNAL.init(touch_signal);
+
+    spawner
+        .spawn(touch_task(touch_irq, touch_spi_bus, touch_cs, touch_signal))
+        .unwrap();
+
+    // init RGB LED pins
+
+    let mut red_led = Output::new(io.pins.gpio4, Level::High);
+    let mut green_led = Output::new(io.pins.gpio16, Level::High);
+    let mut blue_led = Output::new(io.pins.gpio17, Level::High);
+
+    // init SD card pins
+    let sd_miso = io.pins.gpio19;
+    let sd_mosi = io.pins.gpio23;
+    let sd_sck = io.pins.gpio18;
+    let sd_cs = io.pins.gpio5;
+
+    // TODO: Spawn some tasks
+    let _ = spawner;
+
+    let mut last_touch = None;
+
+    static BUF_CELL: StaticCell<[Rgb565; 100 * 100]> = StaticCell::new();
+    let buf = BUF_CELL.init([Rgb565::BLACK; 100 * 100]);
+
+    // Periodically feed the RWDT watchdog timer when our tasks are not running:
+    let mut sm = SmartstateProvider::<20>::new();
+    loop {
+        let start_time = embassy_time::Instant::now();
+        sm.restart_counter();
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.set_buffer(buf);
+        if let Some(touch) = touch_signal.try_take() {
+            let interact = match (touch, last_touch) {
+                (Some(point), Some(_)) => Interaction::Drag(point),
+                (Some(point), None) => Interaction::Click(point),
+                (None, Some(point)) => Interaction::Release(point),
+                (None, None) => Interaction::None,
+            };
+            ui.interact(interact);
+            // println!("{:?}, {:?}, {:?}", last_touch, touch, interact);
+            
+            last_touch = touch;
+        }
+        let start_draw_time = embassy_time::Instant::now();
+        ui.sub_ui(|ui| {
+            ui.style_mut().default_font = ascii::FONT_9X18_BOLD;
+            ui.add(Label::new("Kolibri Tester").smartstate(sm.next()));
+            Ok(())
+        })
+        .ok();
+        ui.add_horizontal(Button::new("Works!").smartstate(sm.next()));
+        ui.add(Button::new("And pretty nicely!").smartstate(sm.next()));
+        let end_time = embassy_time::Instant::now();
+        let draw_time = display.get_time();
+        let prep_time = start_draw_time - start_time;
+        let proc_time = end_time - start_draw_time;
+        let proc_time = proc_time - min(draw_time, proc_time);
+        rtc.rwdt.feed();
+
+        if draw_time.as_micros() > 0 {
+            println!(
+                "draw time: {}.{:03}ms | prep time: {}.{:03}ms | proc time: {}.{:03}ms ",
+                draw_time.as_millis(),
+                draw_time.as_micros() % 100,
+                prep_time.as_millis(),
+                prep_time.as_micros() % 100,
+                proc_time.as_millis(),
+                proc_time.as_micros() % 100,
+            );
+
+        }
+        display.reset_time();
+        Timer::after(Duration::from_millis(17)).await; // 60 a second
+    }
+}

app/src/bin/cyd-kolibri-stats.rs

@@ -0,0 +1,250 @@
+#![no_std]
+#![no_main]
+
+use core::cell::RefCell;
+use core::cmp::min;
+use display_interface_spi::SPIInterface;
+use embassy_embedded_hal::shared_bus::blocking::spi::SpiDevice;
+use embassy_executor::Spawner;
+use embassy_sync::{
+    blocking_mutex::{raw::NoopRawMutex, NoopMutex},
+    signal::Signal,
+};
+use embassy_time::{Duration, Instant, Timer};
+use embedded_graphics::{mono_font::ascii, pixelcolor::Rgb565, prelude::{DrawTarget, Point, RgbColor}, Drawable};
+use embedded_graphics::prelude::Size;
+use embedded_graphics_profiler_display::ProfilerDisplay;
+use esp_backtrace as _;
+use esp_hal::{
+    clock::ClockControl,
+    gpio,
+    gpio::{GpioPin, Input, Io, Level, Output, Pull, NO_PIN},
+    peripherals::{Peripherals, SPI2, SPI3},
+    prelude::*,
+    rtc_cntl::Rtc,
+    spi::{master::Spi, FullDuplexMode, SpiMode},
+    system::SystemControl,
+    timer::{timg::TimerGroup, OneShotTimer},
+};
+use esp_println::println;
+use kolibri_cyd_tester_app_embassy::Debouncer;
+use kolibri_embedded_gui::{button::Button, icons, label::Label, smartstate::SmartstateProvider, style::medsize_rgb565_style, ui::{Interaction, Ui}};
+use kolibri_embedded_gui::helpers::keyboard::draw_keyboard;
+use kolibri_embedded_gui::iconbutton::IconButton;
+use kolibri_embedded_gui::spacer::Spacer;
+use mipidsi::{models::{ILI9486Rgb565, ILI9486Rgb666}, options::{ColorInversion, ColorOrder, Orientation, Rotation}, Builder, Display, NoResetPin};
+use static_cell::{make_static, StaticCell};
+use xpt2046::Xpt2046;
+
+#[embassy_executor::task]
+async fn touch_task(
+    touch_irq: GpioPin<36>,
+    spi: &'static mut NoopMutex<RefCell<Spi<'static, SPI3, FullDuplexMode>>>,
+    touch_cs: GpioPin<33>,
+    touch_signal: &'static Signal<NoopRawMutex, Option<Point>>,
+) -> ! {
+    let mut touch_driver = Xpt2046::new(
+        SpiDevice::new(spi, Output::new(touch_cs, Level::Low)),
+        Input::new(touch_irq, Pull::Up),
+        xpt2046::Orientation::LandscapeFlipped,
+    );
+    touch_driver.set_num_samples(16);
+    touch_driver.init(&mut embassy_time::Delay).unwrap();
+
+    let mut debounce = Debouncer::new();
+    println!("touch task");
+
+    loop {
+        touch_driver.run().expect("Running Touch driver failed");
+        if touch_driver.is_touched() {
+            let point = touch_driver.get_touch_point();
+            touch_signal.signal(Some(Point::new(point.x + 25, 240 - point.y)));
+        } else {
+            touch_signal.signal(None);
+        }
+        Timer::after(Duration::from_millis(1)).await; // 100 a second
+
+        // Your touch handling logic here
+    }
+}
+
+#[main]
+async fn main(spawner: Spawner) {
+    let peripherals = Peripherals::take();
+    let system = SystemControl::new(peripherals.SYSTEM);
+    let mut clocks = ClockControl::boot_defaults(system.clock_control).freeze();
+
+    // Enable the RWDT watchdog timer:
+    let mut rtc = Rtc::new(peripherals.LPWR);
+    rtc.rwdt.set_timeout(2.secs());
+    rtc.rwdt.enable();
+    println!("RWDT watchdog enabled!");
+
+    // Initialize the SYSTIMER peripheral, and then Embassy:
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
+    esp_hal_embassy::init(&clocks, timg0.timer0);
+    println!("Embassy initialized!");
+
+    let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
+    // let mut led = Output::new(io.pins.gpio5, Level::High);
+    // Initialize SPI
+    let sclk = io.pins.gpio14;
+    let miso = io.pins.gpio12;
+    let mosi = io.pins.gpio13;
+    let cs = io.pins.gpio15;
+    let dc = io.pins.gpio2;
+    let mut backlight = Output::new(io.pins.gpio21, Level::Low);
+
+    // Note: RST is not initialized as it's set to -1 in the instructions
+
+    // up to 80MHz is possible (even tho the display driver isn't supposed to be
+    // that fast) Dataseheet sais 10MHz, so we're gonna go with that
+    let mut spi = Spi::new(peripherals.SPI2, 10.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(sclk),
+        Some(mosi),
+        Some(miso),
+        NO_PIN,
+    );
+
+    static DISP_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI2, FullDuplexMode>>>> =
+        StaticCell::new();
+    let spi_bus = NoopMutex::new(RefCell::new(spi));
+    let spi_bus = DISP_SPI_BUS.init(spi_bus);
+
+    let di = SPIInterface::new(
+        SpiDevice::new(spi_bus, Output::new(cs, Level::Low)),
+        Output::new(dc, Level::Low),
+    );
+    let display = Builder::new(ILI9486Rgb565, di)
+        .orientation(Orientation {
+            rotation: Rotation::Deg90,
+            mirrored: true,
+        })
+        .color_order(ColorOrder::Bgr)
+        .invert_colors(ColorInversion::Inverted)
+        .init(&mut embassy_time::Delay)
+        .unwrap();
+
+    let mut display = ProfilerDisplay::new(display);
+
+    {
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.clear_background().ok();
+    }
+    backlight.set_high();
+
+    // init touchscreen pins
+    let touch_irq = io.pins.gpio36;
+    let touch_mosi = io.pins.gpio32;
+    let touch_miso = io.pins.gpio39;
+    let touch_clk = io.pins.gpio25;
+    let touch_cs = io.pins.gpio33;
+
+    // 2MHz is the MAX! DO NOT DECREASE! This is really important.
+    let mut touch_spi = Spi::new(peripherals.SPI3, 2.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(touch_clk),
+        Some(touch_mosi),
+        Some(touch_miso),
+        NO_PIN,
+    );
+    static TOUCH_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI3, FullDuplexMode>>>> =
+        StaticCell::new();
+    let touch_spi_bus = NoopMutex::new(RefCell::new(touch_spi));
+    let touch_spi_bus = TOUCH_SPI_BUS.init(touch_spi_bus);
+
+    let touch_signal = Signal::new();
+    static TOUCH_SIGNAL: StaticCell<Signal<NoopRawMutex, Option<Point>>> = StaticCell::new();
+    let touch_signal = &*TOUCH_SIGNAL.init(touch_signal);
+
+    spawner
+        .spawn(touch_task(touch_irq, touch_spi_bus, touch_cs, touch_signal))
+        .unwrap();
+
+    // init RGB LED pins
+
+    let mut red_led = Output::new(io.pins.gpio4, Level::High);
+    let mut green_led = Output::new(io.pins.gpio16, Level::High);
+    let mut blue_led = Output::new(io.pins.gpio17, Level::High);
+
+    // init SD card pins
+    let sd_miso = io.pins.gpio19;
+    let sd_mosi = io.pins.gpio23;
+    let sd_sck = io.pins.gpio18;
+    let sd_cs = io.pins.gpio5;
+
+    // TODO: Spawn some tasks
+    let _ = spawner;
+
+    let mut last_touch = None;
+
+    static BUF_CELL: StaticCell<[Rgb565; 100 * 100]> = StaticCell::new();
+    let buf = BUF_CELL.init([Rgb565::BLACK; 100 * 100]);
+
+    // Periodically feed the RWDT watchdog timer when our tasks are not running:
+    let mut sm = SmartstateProvider::<20>::new();
+    let mut ui_data = UiData {
+       timer_started: false,
+       timer_duration: Duration::from_secs(30),
+       timer_start_time: Instant::now(),
+    };
+    loop {
+        let start_time = embassy_time::Instant::now();
+        sm.restart_counter();
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.set_buffer(buf);
+        if let Some(touch) = touch_signal.try_take() {
+            let interact = match (touch, last_touch) {
+                (Some(point), Some(_)) => Interaction::Drag(point),
+                (Some(point), None) => Interaction::Click(point),
+                (None, Some(point)) => Interaction::Release(point),
+                (None, None) => Interaction::None,
+            };
+            ui.interact(interact);
+            // println!("{:?}, {:?}, {:?}", last_touch, touch, interact);
+
+            last_touch = touch;
+        }
+        let start_draw_time = embassy_time::Instant::now();
+        do_ui(&mut sm, &mut ui, &mut ui_data);
+        let end_time = embassy_time::Instant::now();
+        let draw_time = display.get_time();
+        let prep_time = start_draw_time - start_time;
+        let proc_time = end_time - start_draw_time;
+        let proc_time = proc_time - min(draw_time, proc_time);
+        rtc.rwdt.feed();
+
+        if draw_time.as_micros() > 0 {
+            println!(
+                "draw time: {}.{:03}ms | prep time: {}.{:03}ms | proc time: {}.{:03}ms ",
+                draw_time.as_millis(),
+                draw_time.as_micros() % 100,
+                prep_time.as_millis(),
+                prep_time.as_micros() % 100,
+                proc_time.as_millis(),
+                proc_time.as_micros() % 100,
+            );
+
+        }
+        display.reset_time();
+        Timer::after(Duration::from_millis(17)).await; // 60 a second
+    }
+}
+
+struct UiData {
+    timer_started: bool,
+    timer_duration: Duration,
+    timer_start_time: Instant,
+}
+
+fn do_ui<DISP: DrawTarget<Color=Rgb565>>(sm: &mut SmartstateProvider<20>, ui: &mut Ui<DISP, Rgb565>, &mut UiData) {
+    ui.sub_ui(|ui| {
+        ui.style_mut().default_font = ascii::FONT_9X18_BOLD;
+        ui.add(Label::new("Timer").smartstate(sm.next()));
+        Ok(())
+    })
+        .ok();
+    ui.add(Spacer::new(Size::new(0, 16)));
+    ui.add(Spacer::new(Size::new(0, 32)));
+    ui.add_horizontal(IconButton::new(icons::size32px::music::Play).smartstate(sm.next()));
+    ui.add(Button::new("And pretty nicely!").smartstate(sm.next()));
+}

app/src/bin/exapp-k-timer.rs

@@ -0,0 +1,468 @@
+#![no_std]
+#![no_main]
+
+use core::{cell::RefCell, cmp::min, fmt};
+
+use display_interface_spi::SPIInterface;
+use embassy_embedded_hal::shared_bus::blocking::spi::SpiDevice;
+use embassy_executor::Spawner;
+use embassy_sync::{
+    blocking_mutex::{raw::NoopRawMutex, NoopMutex},
+    signal::Signal,
+};
+use embassy_time::{Duration, Instant, Timer};
+use embedded_graphics::{
+    mono_font::ascii,
+    pixelcolor::Rgb565,
+    prelude::{DrawTarget, Point, RgbColor, Size, WebColors},
+};
+use embedded_graphics_profiler_display::ProfilerDisplay;
+use esp_backtrace as _;
+use esp_hal::{
+    clock::ClockControl,
+    gpio::{GpioPin, Input, Io, Level, Output, Pull, NO_PIN},
+    peripherals::{Peripherals, SPI2, SPI3},
+    prelude::*,
+    rtc_cntl::Rtc,
+    spi::{master::Spi, FullDuplexMode, SpiMode},
+    system::SystemControl,
+    timer::timg::TimerGroup,
+};
+use esp_println::println;
+use kolibri_cyd_tester_app_embassy::Debouncer;
+use kolibri_embedded_gui::{
+    button::Button,
+    checkbox::Checkbox,
+    icon::IconWidget,
+    iconbutton::IconButton,
+    icons::{size12px, size24px, size32px, size48px, size96px},
+    label::Label,
+    smartstate::SmartstateProvider,
+    spacer::Spacer,
+    style::medsize_rgb565_style,
+    ui::{Interaction, Ui},
+};
+use mipidsi::{
+    models::ILI9486Rgb565,
+    options::{ColorInversion, ColorOrder, Orientation, Rotation},
+    Builder,
+};
+use static_cell::StaticCell;
+use xpt2046::Xpt2046;
+
+#[embassy_executor::task]
+async fn touch_task(
+    touch_irq: GpioPin<36>,
+    spi: &'static mut NoopMutex<RefCell<Spi<'static, SPI3, FullDuplexMode>>>,
+    touch_cs: GpioPin<33>,
+    touch_signal: &'static Signal<NoopRawMutex, Option<Point>>,
+) -> ! {
+    let mut touch_driver = Xpt2046::new(
+        SpiDevice::new(spi, Output::new(touch_cs, Level::Low)),
+        Input::new(touch_irq, Pull::Up),
+        xpt2046::Orientation::LandscapeFlipped,
+    );
+    touch_driver.set_num_samples(16);
+    touch_driver.init(&mut embassy_time::Delay).unwrap();
+
+    println!("touch task");
+
+    loop {
+        touch_driver.run().expect("Running Touch driver failed");
+        if touch_driver.is_touched() {
+            let point = touch_driver.get_touch_point();
+            touch_signal.signal(Some(Point::new(point.x + 25, 240 - point.y)));
+        } else {
+            touch_signal.signal(None);
+        }
+        Timer::after(Duration::from_millis(1)).await; // 100 a second
+
+        // Your touch handling logic here
+    }
+}
+
+struct AppData {
+    timer_start: Instant,
+    timer_set_duration: Duration,
+    timer_remaining_duration: Duration,
+    timer_running: bool,
+    timer_paused: bool,
+}
+
+impl AppData {
+    fn new() -> Self {
+        Self {
+            timer_start: Instant::now(),
+            timer_set_duration: Duration::from_secs(10),
+            timer_remaining_duration: Duration::from_secs(10),
+            timer_running: false,
+            timer_paused: false,
+        }
+    }
+
+    fn set_timer_duration(&mut self, duration: Duration) {
+        self.timer_set_duration = duration;
+    }
+
+    fn add_secs(&mut self, secs: u64) {
+        self.set_timer_duration(
+            self.timer_set_duration
+                .checked_add(Duration::from_secs(secs))
+                .unwrap_or(Duration::from_secs(5999))
+                .min(Duration::from_secs(5999)),
+        );
+    }
+
+    fn sub_secs(&mut self, secs: u64) {
+        self.set_timer_duration(
+            self.timer_set_duration
+                .checked_sub(Duration::from_secs(secs))
+                .unwrap_or(Duration::from_secs(10))
+                .max(Duration::from_secs(10)),
+        );
+    }
+
+    fn start_timer(&mut self) {
+        if !self.timer_paused {
+            self.timer_remaining_duration = self.timer_set_duration;
+        }
+
+        self.timer_start = Instant::now();
+        self.timer_running = true;
+        self.timer_paused = false;
+    }
+
+    fn pause_timer(&mut self) {
+        self.timer_paused = true;
+        self.timer_remaining_duration = self
+            .timer_remaining_duration
+            .checked_sub(self.timer_start.elapsed())
+            .unwrap_or(Duration::from_secs(0));
+    }
+
+    fn reset_timer(&mut self) {
+        self.timer_start = Instant::now();
+        self.timer_paused = false;
+        self.timer_running = false;
+        self.timer_remaining_duration = self.timer_set_duration;
+    }
+
+    fn remaining(&self) -> Duration {
+        if self.timer_stopped() {
+            self.timer_set_duration
+        } else if self.timer_paused() {
+            self.timer_remaining_duration
+        } else {
+            self.timer_remaining_duration
+                .checked_sub(self.timer_start.elapsed())
+                .unwrap_or(Duration::from_secs(0))
+        }
+    }
+
+    fn timer_stopped(&self) -> bool {
+        !self.timer_running
+    }
+
+    fn timer_paused(&self) -> bool {
+        self.timer_running && self.timer_paused
+    }
+
+    fn timer_running(&self) -> bool {
+        self.timer_running && !self.timer_paused
+    }
+
+    fn timer_finished(&self) -> bool {
+        self.timer_running && self.remaining() == Duration::from_secs(0)
+    }
+}
+
+#[main]
+async fn main(spawner: Spawner) {
+    let peripherals = Peripherals::take();
+    let system = SystemControl::new(peripherals.SYSTEM);
+    let mut clocks = ClockControl::boot_defaults(system.clock_control).freeze();
+
+    // Enable the RWDT watchdog timer:
+    let mut rtc = Rtc::new(peripherals.LPWR);
+    rtc.rwdt.set_timeout(2.secs());
+    rtc.rwdt.enable();
+    println!("RWDT watchdog enabled!");
+
+    // Initialize the SYSTIMER peripheral, and then Embassy:
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
+    esp_hal_embassy::init(&clocks, timg0.timer0);
+    println!("Embassy initialized!");
+
+    let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
+    // let mut led = Output::new(io.pins.gpio5, Level::High);
+    // Initialize SPI
+    let sclk = io.pins.gpio14;
+    let miso = io.pins.gpio12;
+    let mosi = io.pins.gpio13;
+    let cs = io.pins.gpio15;
+    let dc = io.pins.gpio2;
+    let mut backlight = Output::new(io.pins.gpio21, Level::Low);
+
+    // Note: RST is not initialized as it's set to -1 in the instructions
+
+    // up to 80MHz is possible (even tho the display driver isn't supposed to be
+    // that fast) Dataseheet sais 10MHz, so we're gonna go with that
+    let mut spi = Spi::new(peripherals.SPI2, 10.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(sclk),
+        Some(mosi),
+        Some(miso),
+        NO_PIN,
+    );
+
+    static DISP_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI2, FullDuplexMode>>>> =
+        StaticCell::new();
+    let spi_bus = NoopMutex::new(RefCell::new(spi));
+    let spi_bus = DISP_SPI_BUS.init(spi_bus);
+
+    let di = SPIInterface::new(
+        SpiDevice::new(spi_bus, Output::new(cs, Level::Low)),
+        Output::new(dc, Level::Low),
+    );
+    let display = Builder::new(ILI9486Rgb565, di)
+        .orientation(Orientation {
+            rotation: Rotation::Deg90,
+            mirrored: true,
+        })
+        .color_order(ColorOrder::Bgr)
+        .invert_colors(ColorInversion::Inverted)
+        .init(&mut embassy_time::Delay)
+        .unwrap();
+
+    let mut display = ProfilerDisplay::new(display);
+
+    {
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.clear_background().ok();
+    }
+    backlight.set_high();
+
+    // init touchscreen pins
+    let touch_irq = io.pins.gpio36;
+    let touch_mosi = io.pins.gpio32;
+    let touch_miso = io.pins.gpio39;
+    let touch_clk = io.pins.gpio25;
+    let touch_cs = io.pins.gpio33;
+
+    // 2MHz is the MAX! DO NOT DECREASE! This is really important.
+    let mut touch_spi = Spi::new(peripherals.SPI3, 2.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(touch_clk),
+        Some(touch_mosi),
+        Some(touch_miso),
+        NO_PIN,
+    );
+    static TOUCH_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI3, FullDuplexMode>>>> =
+        StaticCell::new();
+    let touch_spi_bus = NoopMutex::new(RefCell::new(touch_spi));
+    let touch_spi_bus = TOUCH_SPI_BUS.init(touch_spi_bus);
+
+    let touch_signal = Signal::new();
+    static TOUCH_SIGNAL: StaticCell<Signal<NoopRawMutex, Option<Point>>> = StaticCell::new();
+    let touch_signal = &*TOUCH_SIGNAL.init(touch_signal);
+
+    spawner
+        .spawn(touch_task(touch_irq, touch_spi_bus, touch_cs, touch_signal))
+        .unwrap();
+
+    // TODO: Spawn some tasks
+    let _ = spawner;
+
+    // variables
+    let mut appdata = AppData::new();
+    let (mut prev_mins, mut prev_secs, mut prev_millis) = (0, 0, 0);
+    let mut finished = false;
+
+    // touchpoints
+
+    let mut last_touch = None;
+
+    static BUF_CELL: StaticCell<[Rgb565; 100 * 100]> = StaticCell::new();
+    let buf = BUF_CELL.init([Rgb565::BLACK; 100 * 100]);
+
+    let mut textbuf = [0u8; 64];
+
+    // Periodically feed the RWDT watchdog timer when our tasks are not running:
+    let mut sm = SmartstateProvider::<20>::new();
+    loop {
+        // SMART REDRAWING ENABLE / DISABLE
+        // sm.force_redraw_all();
+
+        let start_time = embassy_time::Instant::now();
+        sm.restart_counter();
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        if let Some(touch) = touch_signal.try_take() {
+            let interact = match (touch, last_touch) {
+                (Some(point), Some(_)) => Interaction::Drag(point),
+                (Some(point), None) => Interaction::Click(point),
+                (None, Some(point)) => Interaction::Release(point),
+                (None, None) => Interaction::None,
+            };
+            ui.interact(interact);
+            // println!("{:?}, {:?}, {:?}", last_touch, touch, interact);
+
+            last_touch = touch;
+        }
+
+        // BUFFER ENABLE/DISABLE
+        ui.set_buffer(buf);
+
+        let start_draw_time = embassy_time::Instant::now();
+        ui.sub_ui(|ui| {
+            ui.style_mut().default_font = ascii::FONT_9X18_BOLD;
+            ui.add(Label::new("Kolibri Timer App").smartstate(sm.next()));
+            Ok(())
+        })
+        .ok();
+
+        let remaining = appdata.remaining();
+
+        ui.add(Spacer::new(Size::new(0, 60)));
+        ui.add_horizontal(Spacer::new(Size::new(80, 0)));
+        ui.sub_ui(|ui| {
+            ui.style_mut().default_font = ascii::FONT_10X20;
+            if remaining.as_secs() / 60 != prev_mins {
+                sm.peek().force_redraw();
+                prev_mins = remaining.as_secs() / 60;
+            }
+            ui.add_horizontal(
+                Label::new(
+                    &format_no_std::show(
+                        &mut textbuf,
+                        format_args!("{:02}", remaining.as_secs() / 60),
+                    )
+                    .unwrap(),
+                )
+                .smartstate(sm.next()),
+            );
+            ui.add_horizontal(Label::new(":").smartstate(sm.next()));
+
+            if remaining.as_secs() % 60 != prev_secs {
+                sm.peek().force_redraw();
+                prev_secs = remaining.as_secs() % 60;
+            }
+            ui.add_horizontal(
+                Label::new(
+                    &format_no_std::show(
+                        &mut textbuf,
+                        format_args!("{:02}", remaining.as_secs() % 60),
+                    )
+                    .unwrap(),
+                )
+                .smartstate(sm.next()),
+            );
+            ui.add_horizontal(Label::new(":").smartstate(sm.next()));
+
+            if remaining.as_millis() % 1000 != prev_millis {
+                sm.peek().force_redraw();
+                prev_millis = remaining.as_millis() % 1000;
+            }
+            ui.add(
+                Label::new(
+                    &format_no_std::show(
+                        &mut textbuf,
+                        format_args!("{:03}", remaining.as_millis() % 1000),
+                    )
+                    .unwrap(),
+                )
+                .smartstate(sm.next()),
+            );
+            Ok(())
+        })
+        .ok();
+
+        ui.add_horizontal(Spacer::new(Size::new(65, 0)));
+        ui.sub_ui(|ui| {
+            if appdata.timer_running() {
+                ui.style_mut().icon_color = Rgb565::CSS_LIGHT_GRAY;
+            }
+            if ui
+                .add_horizontal(IconButton::new(size32px::actions::AddCircle).smartstate(sm.next()))
+                .clicked()
+            {
+                if !appdata.timer_running() {
+                    appdata.add_secs(10);
+                }
+            }
+            ui.add_horizontal(Label::new("+/- 10s").smartstate(sm.next()));
+            if ui
+                .add(IconButton::new(size32px::actions::MinusCircle).smartstate(sm.next()))
+                .clicked()
+            {
+                if !appdata.timer_running() {
+                    appdata.sub_secs(10);
+                }
+            }
+            Ok(())
+        })
+        .ok();
+
+        ui.add_horizontal(Spacer::new(Size::new(80, 0)));
+        if ui
+            .add_horizontal(IconButton::new(size48px::actions::Undo).smartstate(sm.next()))
+            .clicked()
+        {
+            appdata.reset_timer();
+            sm.force_redraw_all();
+        }
+
+        if !finished && appdata.timer_finished() {
+            sm.peek().force_redraw();
+        }
+
+        if appdata.timer_finished() {
+            if ui
+                .add_horizontal(
+                    IconButton::new(size48px::actions::RemoveSquare).smartstate(sm.next()),
+                )
+                .clicked()
+            {
+                appdata.reset_timer();
+                sm.force_redraw_all();
+            }
+        } else if appdata.timer_running() {
+            if ui
+                .add_horizontal(IconButton::new(size48px::music::Pause).smartstate(sm.next()))
+                .clicked()
+            {
+                appdata.pause_timer();
+                sm.force_redraw_all();
+            }
+        } else {
+            if ui
+                .add_horizontal(IconButton::new(size48px::music::Play).smartstate(sm.next()))
+                .clicked()
+            {
+                appdata.start_timer();
+                sm.force_redraw_all();
+            }
+        }
+
+        finished = appdata.timer_finished();
+
+        let end_time = embassy_time::Instant::now();
+        let draw_time = display.get_time();
+        let prep_time = start_draw_time - start_time;
+        let proc_time = end_time - start_draw_time;
+        let proc_time = proc_time - min(draw_time, proc_time);
+        rtc.rwdt.feed();
+
+        if draw_time.as_micros() > 0 {
+            println!(
+                "draw time: {}.{:03}ms | prep time: {}.{:03}ms | proc time: {}.{:03}ms | total time: {}.{:03}ms",
+                draw_time.as_millis(),
+                draw_time.as_micros() % 100,
+                prep_time.as_millis(),
+                prep_time.as_micros() % 100,
+                proc_time.as_millis(),
+                proc_time.as_micros() % 100,
+                (draw_time + prep_time + proc_time).as_millis(),
+                (draw_time + prep_time + proc_time).as_micros() % 100,            );
+        }
+        display.reset_time();
+        Timer::after(Duration::from_millis(17)).await; // 60 a second
+    }
+}

app/src/bin/firmware.rs

@@ -219,11 +219,12 @@ async fn main(spawner: Spawner) {
         .ok();
         ui.add_horizontal(Button::new("Works!").smartstate(sm.next()));
         ui.add(Button::new("And pretty nicely!").smartstate(sm.next()));
-        rtc.rwdt.feed();
+        let end_time = embassy_time::Instant::now();
         let draw_time = display.get_time();
         let prep_time = start_draw_time - start_time;
-        let proc_time = embassy_time::Instant::now() - start_draw_time;
+        let proc_time = end_time - start_draw_time;
         let proc_time = proc_time - min(draw_time, proc_time);
+        rtc.rwdt.feed();
 
         if draw_time.as_micros() > 0 {
             println!(

app/src/bin/hardware-example-tester.rs

@@ -0,0 +1,261 @@
+#![no_std]
+#![no_main]
+
+use core::{cell::RefCell, cmp::min};
+
+use display_interface_spi::SPIInterface;
+use embassy_embedded_hal::shared_bus::blocking::spi::SpiDevice;
+use embassy_executor::Spawner;
+use embassy_sync::{
+    blocking_mutex::{raw::NoopRawMutex, NoopMutex},
+    signal::Signal,
+};
+use embassy_time::{Duration, Timer};
+use embedded_graphics::{
+    mono_font::ascii,
+    pixelcolor::Rgb565,
+    prelude::{DrawTarget, Point, RgbColor},
+};
+use embedded_graphics_profiler_display::ProfilerDisplay;
+use esp_backtrace as _;
+use esp_hal::{
+    clock::ClockControl,
+    gpio::{GpioPin, Input, Io, Level, Output, Pull, NO_PIN},
+    peripherals::{Peripherals, SPI2, SPI3},
+    prelude::*,
+    rtc_cntl::Rtc,
+    spi::{master::Spi, FullDuplexMode, SpiMode},
+    system::SystemControl,
+    timer::timg::TimerGroup,
+};
+use esp_println::println;
+use kolibri_cyd_tester_app_embassy::Debouncer;
+use kolibri_embedded_gui::{
+    button::Button,
+    checkbox::Checkbox,
+    icon::IconWidget,
+    iconbutton::IconButton,
+    icons::{size12px, size24px, size32px, size48px, size96px},
+    label::Label,
+    smartstate::SmartstateProvider,
+    style::medsize_rgb565_style,
+    ui::{Interaction, Ui},
+};
+use mipidsi::{
+    models::ILI9486Rgb565,
+    options::{ColorInversion, ColorOrder, Orientation, Rotation},
+    Builder,
+};
+use static_cell::StaticCell;
+use xpt2046::Xpt2046;
+
+#[embassy_executor::task]
+async fn touch_task(
+    touch_irq: GpioPin<36>,
+    spi: &'static mut NoopMutex<RefCell<Spi<'static, SPI3, FullDuplexMode>>>,
+    touch_cs: GpioPin<33>,
+    touch_signal: &'static Signal<NoopRawMutex, Option<Point>>,
+) -> ! {
+    let mut touch_driver = Xpt2046::new(
+        SpiDevice::new(spi, Output::new(touch_cs, Level::Low)),
+        Input::new(touch_irq, Pull::Up),
+        xpt2046::Orientation::LandscapeFlipped,
+    );
+    touch_driver.set_num_samples(16);
+    touch_driver.init(&mut embassy_time::Delay).unwrap();
+
+    let mut debounce = Debouncer::new();
+    println!("touch task");
+
+    loop {
+        touch_driver.run().expect("Running Touch driver failed");
+        if touch_driver.is_touched() {
+            let point = touch_driver.get_touch_point();
+            touch_signal.signal(Some(Point::new(point.x + 25, 240 - point.y)));
+        } else {
+            touch_signal.signal(None);
+        }
+        Timer::after(Duration::from_millis(1)).await; // 100 a second
+
+        // Your touch handling logic here
+    }
+}
+
+#[main]
+async fn main(spawner: Spawner) {
+    let peripherals = Peripherals::take();
+    let system = SystemControl::new(peripherals.SYSTEM);
+    let mut clocks = ClockControl::boot_defaults(system.clock_control).freeze();
+
+    // Enable the RWDT watchdog timer:
+    let mut rtc = Rtc::new(peripherals.LPWR);
+    rtc.rwdt.set_timeout(2.secs());
+    rtc.rwdt.enable();
+    println!("RWDT watchdog enabled!");
+
+    // Initialize the SYSTIMER peripheral, and then Embassy:
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
+    esp_hal_embassy::init(&clocks, timg0.timer0);
+    println!("Embassy initialized!");
+
+    let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
+    // let mut led = Output::new(io.pins.gpio5, Level::High);
+    // Initialize SPI
+    let sclk = io.pins.gpio14;
+    let miso = io.pins.gpio12;
+    let mosi = io.pins.gpio13;
+    let cs = io.pins.gpio15;
+    let dc = io.pins.gpio2;
+    let mut backlight = Output::new(io.pins.gpio21, Level::Low);
+
+    // Note: RST is not initialized as it's set to -1 in the instructions
+
+    // up to 80MHz is possible (even tho the display driver isn't supposed to be
+    // that fast) Dataseheet sais 10MHz, so we're gonna go with that
+    let mut spi = Spi::new(peripherals.SPI2, 10.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(sclk),
+        Some(mosi),
+        Some(miso),
+        NO_PIN,
+    );
+
+    static DISP_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI2, FullDuplexMode>>>> =
+        StaticCell::new();
+    let spi_bus = NoopMutex::new(RefCell::new(spi));
+    let spi_bus = DISP_SPI_BUS.init(spi_bus);
+
+    let di = SPIInterface::new(
+        SpiDevice::new(spi_bus, Output::new(cs, Level::Low)),
+        Output::new(dc, Level::Low),
+    );
+    let display = Builder::new(ILI9486Rgb565, di)
+        .orientation(Orientation {
+            rotation: Rotation::Deg90,
+            mirrored: true,
+        })
+        .color_order(ColorOrder::Bgr)
+        .invert_colors(ColorInversion::Inverted)
+        .init(&mut embassy_time::Delay)
+        .unwrap();
+
+    let mut display = ProfilerDisplay::new(display);
+
+    {
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.clear_background().ok();
+    }
+    backlight.set_high();
+
+    // init touchscreen pins
+    let touch_irq = io.pins.gpio36;
+    let touch_mosi = io.pins.gpio32;
+    let touch_miso = io.pins.gpio39;
+    let touch_clk = io.pins.gpio25;
+    let touch_cs = io.pins.gpio33;
+
+    // 2MHz is the MAX! DO NOT DECREASE! This is really important.
+    let mut touch_spi = Spi::new(peripherals.SPI3, 2.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(touch_clk),
+        Some(touch_mosi),
+        Some(touch_miso),
+        NO_PIN,
+    );
+    static TOUCH_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI3, FullDuplexMode>>>> =
+        StaticCell::new();
+    let touch_spi_bus = NoopMutex::new(RefCell::new(touch_spi));
+    let touch_spi_bus = TOUCH_SPI_BUS.init(touch_spi_bus);
+
+    let touch_signal = Signal::new();
+    static TOUCH_SIGNAL: StaticCell<Signal<NoopRawMutex, Option<Point>>> = StaticCell::new();
+    let touch_signal = &*TOUCH_SIGNAL.init(touch_signal);
+
+    spawner
+        .spawn(touch_task(touch_irq, touch_spi_bus, touch_cs, touch_signal))
+        .unwrap();
+
+    // TODO: Spawn some tasks
+    let _ = spawner;
+
+    // variables
+    let mut checked = false;
+
+    // touchpoints
+
+    let mut last_touch = None;
+
+    static BUF_CELL: StaticCell<[Rgb565; 100 * 100]> = StaticCell::new();
+    let buf = BUF_CELL.init([Rgb565::BLACK; 100 * 100]);
+
+    // Periodically feed the RWDT watchdog timer when our tasks are not running:
+    let mut sm = SmartstateProvider::<20>::new();
+    loop {
+        // SMART REDRAWING ENABLE / DISABLE
+        // sm.force_redraw_all();
+
+        let start_time = embassy_time::Instant::now();
+        sm.restart_counter();
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        if let Some(touch) = touch_signal.try_take() {
+            let interact = match (touch, last_touch) {
+                (Some(point), Some(_)) => Interaction::Drag(point),
+                (Some(point), None) => Interaction::Click(point),
+                (None, Some(point)) => Interaction::Release(point),
+                (None, None) => Interaction::None,
+            };
+            ui.interact(interact);
+            // println!("{:?}, {:?}, {:?}", last_touch, touch, interact);
+
+            last_touch = touch;
+        }
+
+        // BUFFER ENABLE/DISABLE
+        // ui.set_buffer(buf);
+
+        let start_draw_time = embassy_time::Instant::now();
+        ui.sub_ui(|ui| {
+            ui.style_mut().default_font = ascii::FONT_9X18_BOLD;
+            ui.add(Label::new("Optimizations Performance Test").smartstate(sm.next()));
+            Ok(())
+        })
+        .ok();
+        ui.add_horizontal(Button::new("Button 1").smartstate(sm.next()));
+        ui.add(Button::new("Button 2").smartstate(sm.next()));
+        ui.add_horizontal(IconButton::new(size32px::actions::AddCircle).smartstate(sm.next()));
+        ui.add_horizontal(Label::new("Add / Remove").smartstate(sm.next()));
+        ui.add(IconButton::new(size32px::actions::RemoveSquare).smartstate(sm.next()));
+        ui.add_horizontal(Label::new("Check this Checkbox: ").smartstate(sm.next()));
+        ui.add(Checkbox::new(&mut checked).smartstate(sm.next()));
+
+        ui.add(Label::new("Some Icons: ").smartstate(sm.next()));
+
+        ui.add_horizontal(IconWidget::new(size12px::actions::AddCircle).smartstate(sm.next()));
+        ui.add_horizontal(IconWidget::new(size24px::actions::OpenNewWindow).smartstate(sm.next()));
+        ui.add_horizontal(IconWidget::new(size32px::actions::Cancel).smartstate(sm.next()));
+        ui.add_horizontal(IconWidget::new(size48px::actions::Download).smartstate(sm.next()));
+        ui.add_horizontal(
+            IconWidget::new(size96px::actions::SaveActionFloppy).smartstate(sm.next()),
+        );
+
+        let end_time = embassy_time::Instant::now();
+        let draw_time = display.get_time();
+        let prep_time = start_draw_time - start_time;
+        let proc_time = end_time - start_draw_time;
+        let proc_time = proc_time - min(draw_time, proc_time);
+        rtc.rwdt.feed();
+
+        if draw_time.as_micros() > 0 {
+            println!(
+                "draw time: {}.{:03}ms | prep time: {}.{:03}ms | proc time: {}.{:03}ms | total time: {}.{:03}ms",
+                draw_time.as_millis(),
+                draw_time.as_micros() % 100,
+                prep_time.as_millis(),
+                prep_time.as_micros() % 100,
+                proc_time.as_millis(),
+                proc_time.as_micros() % 100,
+                (draw_time + prep_time + proc_time).as_millis(),
+                (draw_time + prep_time + proc_time).as_micros() % 100,            );
+        }
+        display.reset_time();
+        Timer::after(Duration::from_millis(17)).await; // 60 a second
+    }
+}

app/src/bin/kolibri-timer.rs

@@ -0,0 +1,270 @@
+#![no_std]
+#![no_main]
+
+use core::{cell::RefCell, cmp::min};
+
+use display_interface_spi::SPIInterface;
+use embassy_embedded_hal::shared_bus::blocking::spi::SpiDevice;
+use embassy_executor::Spawner;
+use embassy_sync::{
+    blocking_mutex::{raw::NoopRawMutex, NoopMutex},
+    signal::Signal,
+};
+use embassy_time::{Duration, Instant, Timer};
+use embedded_graphics::{
+    mono_font::ascii,
+    pixelcolor::Rgb565,
+    prelude::{DrawTarget, Point, RgbColor, Size},
+    Drawable,
+};
+use embedded_graphics_profiler_display::ProfilerDisplay;
+use esp_backtrace as _;
+use esp_hal::{
+    clock::ClockControl,
+    gpio,
+    gpio::{GpioPin, Input, Io, Level, Output, Pull, NO_PIN},
+    peripherals::{Peripherals, SPI2, SPI3},
+    prelude::*,
+    rtc_cntl::Rtc,
+    spi::{master::Spi, FullDuplexMode, SpiMode},
+    system::SystemControl,
+    timer::{timg::TimerGroup, OneShotTimer},
+};
+use esp_println::println;
+use kolibri_cyd_tester_app_embassy::Debouncer;
+use kolibri_embedded_gui::{
+    button::Button,
+    helpers::keyboard::draw_keyboard,
+    iconbutton::IconButton,
+    icons,
+    label::Label,
+    smartstate::SmartstateProvider,
+    spacer::Spacer,
+    style::medsize_rgb565_style,
+    ui::{Interaction, Ui},
+};
+use mipidsi::{
+    models::{ILI9486Rgb565, ILI9486Rgb666},
+    options::{ColorInversion, ColorOrder, Orientation, Rotation},
+    Builder,
+    Display,
+    NoResetPin,
+};
+use static_cell::{make_static, StaticCell};
+use xpt2046::Xpt2046;
+
+#[embassy_executor::task]
+async fn touch_task(
+    touch_irq: GpioPin<36>,
+    spi: &'static mut NoopMutex<RefCell<Spi<'static, SPI3, FullDuplexMode>>>,
+    touch_cs: GpioPin<33>,
+    touch_signal: &'static Signal<NoopRawMutex, Option<Point>>,
+) -> ! {
+    let mut touch_driver = Xpt2046::new(
+        SpiDevice::new(spi, Output::new(touch_cs, Level::Low)),
+        Input::new(touch_irq, Pull::Up),
+        xpt2046::Orientation::LandscapeFlipped,
+    );
+    touch_driver.set_num_samples(16);
+    touch_driver.init(&mut embassy_time::Delay).unwrap();
+
+    let mut debounce = Debouncer::new();
+    println!("touch task");
+
+    loop {
+        touch_driver.run().expect("Running Touch driver failed");
+        if touch_driver.is_touched() {
+            let point = touch_driver.get_touch_point();
+            touch_signal.signal(Some(Point::new(point.x + 25, 240 - point.y)));
+        } else {
+            touch_signal.signal(None);
+        }
+        Timer::after(Duration::from_millis(1)).await; // 100 a second
+
+        // Your touch handling logic here
+    }
+}
+
+#[main]
+async fn main(spawner: Spawner) {
+    let peripherals = Peripherals::take();
+    let system = SystemControl::new(peripherals.SYSTEM);
+    let mut clocks = ClockControl::boot_defaults(system.clock_control).freeze();
+
+    // Enable the RWDT watchdog timer:
+    let mut rtc = Rtc::new(peripherals.LPWR);
+    rtc.rwdt.set_timeout(2.secs());
+    rtc.rwdt.enable();
+    println!("RWDT watchdog enabled!");
+
+    // Initialize the SYSTIMER peripheral, and then Embassy:
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
+    esp_hal_embassy::init(&clocks, timg0.timer0);
+    println!("Embassy initialized!");
+
+    let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
+    // let mut led = Output::new(io.pins.gpio5, Level::High);
+    // Initialize SPI
+    let sclk = io.pins.gpio14;
+    let miso = io.pins.gpio12;
+    let mosi = io.pins.gpio13;
+    let cs = io.pins.gpio15;
+    let dc = io.pins.gpio2;
+    let mut backlight = Output::new(io.pins.gpio21, Level::Low);
+
+    // Note: RST is not initialized as it's set to -1 in the instructions
+
+    // up to 80MHz is possible (even tho the display driver isn't supposed to be
+    // that fast) Dataseheet sais 10MHz, so we're gonna go with that
+    let mut spi = Spi::new(peripherals.SPI2, 10.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(sclk),
+        Some(mosi),
+        Some(miso),
+        NO_PIN,
+    );
+
+    static DISP_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI2, FullDuplexMode>>>> =
+        StaticCell::new();
+    let spi_bus = NoopMutex::new(RefCell::new(spi));
+    let spi_bus = DISP_SPI_BUS.init(spi_bus);
+
+    let di = SPIInterface::new(
+        SpiDevice::new(spi_bus, Output::new(cs, Level::Low)),
+        Output::new(dc, Level::Low),
+    );
+    let display = Builder::new(ILI9486Rgb565, di)
+        .orientation(Orientation {
+            rotation: Rotation::Deg90,
+            mirrored: true,
+        })
+        .color_order(ColorOrder::Bgr)
+        .invert_colors(ColorInversion::Inverted)
+        .init(&mut embassy_time::Delay)
+        .unwrap();
+
+    let mut display = ProfilerDisplay::new(display);
+
+    {
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.clear_background().ok();
+    }
+    backlight.set_high();
+
+    // init touchscreen pins
+    let touch_irq = io.pins.gpio36;
+    let touch_mosi = io.pins.gpio32;
+    let touch_miso = io.pins.gpio39;
+    let touch_clk = io.pins.gpio25;
+    let touch_cs = io.pins.gpio33;
+
+    // 2MHz is the MAX! DO NOT DECREASE! This is really important.
+    let mut touch_spi = Spi::new(peripherals.SPI3, 2.MHz(), SpiMode::Mode0, &mut clocks).with_pins(
+        Some(touch_clk),
+        Some(touch_mosi),
+        Some(touch_miso),
+        NO_PIN,
+    );
+    static TOUCH_SPI_BUS: StaticCell<NoopMutex<RefCell<Spi<SPI3, FullDuplexMode>>>> =
+        StaticCell::new();
+    let touch_spi_bus = NoopMutex::new(RefCell::new(touch_spi));
+    let touch_spi_bus = TOUCH_SPI_BUS.init(touch_spi_bus);
+
+    let touch_signal = Signal::new();
+    static TOUCH_SIGNAL: StaticCell<Signal<NoopRawMutex, Option<Point>>> = StaticCell::new();
+    let touch_signal = &*TOUCH_SIGNAL.init(touch_signal);
+
+    spawner
+        .spawn(touch_task(touch_irq, touch_spi_bus, touch_cs, touch_signal))
+        .unwrap();
+
+    // init RGB LED pins
+
+    let mut red_led = Output::new(io.pins.gpio4, Level::High);
+    let mut green_led = Output::new(io.pins.gpio16, Level::High);
+    let mut blue_led = Output::new(io.pins.gpio17, Level::High);
+
+    // init SD card pins
+    let sd_miso = io.pins.gpio19;
+    let sd_mosi = io.pins.gpio23;
+    let sd_sck = io.pins.gpio18;
+    let sd_cs = io.pins.gpio5;
+
+    // TODO: Spawn some tasks
+    let _ = spawner;
+
+    let mut last_touch = None;
+
+    static BUF_CELL: StaticCell<[Rgb565; 100 * 100]> = StaticCell::new();
+    let buf = BUF_CELL.init([Rgb565::BLACK; 100 * 100]);
+
+    // Periodically feed the RWDT watchdog timer when our tasks are not running:
+    let mut sm = SmartstateProvider::<20>::new();
+    let mut ui_data = UiData {
+        timer_started: false,
+        timer_duration: Duration::from_secs(30),
+        timer_start_time: Instant::now(),
+    };
+    loop {
+        let start_time = embassy_time::Instant::now();
+        sm.restart_counter();
+        let mut ui = Ui::new_fullscreen(&mut display, medsize_rgb565_style());
+        ui.set_buffer(buf);
+        if let Some(touch) = touch_signal.try_take() {
+            let interact = match (touch, last_touch) {
+                (Some(point), Some(_)) => Interaction::Drag(point),
+                (Some(point), None) => Interaction::Click(point),
+                (None, Some(point)) => Interaction::Release(point),
+                (None, None) => Interaction::None,
+            };
+            ui.interact(interact);
+            // println!("{:?}, {:?}, {:?}", last_touch, touch, interact);
+
+            last_touch = touch;
+        }
+        let start_draw_time = embassy_time::Instant::now();
+        do_ui(&mut sm, &mut ui, &mut ui_data);
+        let end_time = embassy_time::Instant::now();
+        let draw_time = display.get_time();
+        let prep_time = start_draw_time - start_time;
+        let proc_time = end_time - start_draw_time;
+        let proc_time = proc_time - min(draw_time, proc_time);
+        rtc.rwdt.feed();
+
+        if draw_time.as_micros() > 0 {
+            println!(
+                "draw time: {}.{:03}ms | prep time: {}.{:03}ms | proc time: {}.{:03}ms ",
+                draw_time.as_millis(),
+                draw_time.as_micros() % 100,
+                prep_time.as_millis(),
+                prep_time.as_micros() % 100,
+                proc_time.as_millis(),
+                proc_time.as_micros() % 100,
+            );
+        }
+        display.reset_time();
+        Timer::after(Duration::from_millis(17)).await; // 60 a second
+    }
+}
+
+struct UiData {
+    timer_started: bool,
+    timer_duration: Duration,
+    timer_start_time: Instant,
+}
+
+fn do_ui<DISP: DrawTarget<Color = Rgb565>>(
+    sm: &mut SmartstateProvider<20>,
+    ui: &mut Ui<DISP, Rgb565>,
+    ui_data: &mut UiData,
+) {
+    ui.sub_ui(|ui| {
+        ui.style_mut().default_font = profont::PROFONT_24_POINT;
+        ui.add(Label::new("Timer").smartstate(sm.next()));
+        Ok(())
+    })
+    .ok();
+    ui.add(Spacer::new(Size::new(0, 16)));
+    ui.add(Spacer::new(Size::new(0, 32)));
+    ui.add_horizontal(IconButton::new(icons::size24px::music::Play).smartstate(sm.next()));
+
+}