diff --git a/Cargo.lock b/Cargo.lock
index 2f27a7d..c1c5591 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -221,9 +221,12 @@ checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
 name = "bike"
 version = "0.1.0"
 dependencies = [
+ "az",
  "cortex-m",
  "cortex-m-rt",
+ "embedded-alloc",
  "embedded-hal",
+ "fixed",
  "fugit",
  "lights-core",
  "panic-halt",
@@ -801,6 +804,16 @@ dependencies = [
  "serde 1.0.188",
 ]
 
+[[package]]
+name = "embedded-alloc"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ddae17915accbac2cfbc64ea0ae6e3b330e6ea124ba108dada63646fd3c6f815"
+dependencies = [
+ "critical-section",
+ "linked_list_allocator",
+]
+
 [[package]]
 name = "embedded-dma"
 version = "0.2.0"
@@ -2194,6 +2207,12 @@ dependencies = [
  "fixed",
 ]
 
+[[package]]
+name = "linked_list_allocator"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afa463f5405ee81cdb9cc2baf37e08ec7e4c8209442b5d72c04cfb2cd6e6286"
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.8"
diff --git a/bike-lights/bike/Cargo.toml b/bike-lights/bike/Cargo.toml
index 80fc201..e62c730 100644
--- a/bike-lights/bike/Cargo.toml
+++ b/bike-lights/bike/Cargo.toml
@@ -6,10 +6,13 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-cortex-m = "0.7.7"
-cortex-m-rt = "0.7.3"
-embedded-hal = "0.2.7"
-fugit = "0.3.7"
-panic-halt = "0.2.0"
-rp-pico = "0.8.0"
-lights-core = { path = "../core" }
+az              = { version = "1" }
+cortex-m-rt     = { version = "0.7.3" }
+cortex-m        = { version = "0.7.7" }
+embedded-alloc  = { version = "0.5.1" }
+embedded-hal    = { version = "0.2.7" }
+fixed           = { version = "1" }
+fugit           = { version = "0.3.7" }
+lights-core     = { path = "../core" }
+panic-halt      = { version = "0.2.0" }
+rp-pico         = { version = "0.8.0" }
diff --git a/bike-lights/bike/src/main.rs b/bike-lights/bike/src/main.rs
index 824e3b4..4e45da7 100644
--- a/bike-lights/bike/src/main.rs
+++ b/bike-lights/bike/src/main.rs
@@ -1,10 +1,134 @@
 #![no_main]
 #![no_std]
 
+extern crate alloc;
+
+use az::*;
+use core::cell::RefCell;
+use cortex_m::delay::Delay;
+use embedded_alloc::Heap;
+use embedded_hal::{blocking::spi::Write, digital::v2::OutputPin};
+use fixed::types::I16F16;
+use fugit::RateExtU32;
+use lights_core::{
+    BodyPattern, DashboardPattern, Event, TRANS_PRIDE_BODY, TRANS_PRIDE_DASHBOARD, UI,
+};
 use panic_halt as _;
-use rp_pico::entry;
+use rp_pico::{
+    entry,
+    hal::{
+        clocks::init_clocks_and_plls,
+        pac::{CorePeripherals, Peripherals},
+        spi::{Enabled, Spi, SpiDevice, ValidSpiPinout},
+        watchdog::Watchdog,
+        Clock, Sio,
+    },
+    Pins,
+};
+
+#[global_allocator]
+static HEAP: Heap = Heap::empty();
+
+const LIGHT_SCALE: I16F16 = I16F16::lit("256.0");
+const GLOBAL_BRIGHTESS: u8 = 1;
+
+struct BikeUI<D: SpiDevice, P: ValidSpiPinout<D>> {
+    spi: RefCell<Spi<Enabled, D, P, 8>>,
+}
+
+impl<D: SpiDevice, P: ValidSpiPinout<D>> BikeUI<D, P> {
+    fn new(spi: Spi<Enabled, D, P, 8>) -> Self {
+        Self {
+            spi: RefCell::new(spi),
+        }
+    }
+}
+
+impl<D: SpiDevice, P: ValidSpiPinout<D>> UI for BikeUI<D, P> {
+    fn check_event(&self) -> Option<Event> {
+        None
+    }
+
+    fn update_lights(&self, dashboard_lights: DashboardPattern, body_lights: BodyPattern) {
+        let mut lights: [u8; 20] = [0; 20];
+        lights[16] = 0xff;
+        lights[17] = 0xff;
+        lights[18] = 0xff;
+        lights[19] = 0xff;
+        for (idx, rgb) in dashboard_lights.iter().enumerate() {
+            lights[(idx + 1) * 4 + 0] = 0xe0 + GLOBAL_BRIGHTESS;
+            lights[(idx + 1) * 4 + 1] = (I16F16::from(rgb.r) * LIGHT_SCALE).saturating_as();
+            lights[(idx + 1) * 4 + 2] = (I16F16::from(rgb.b) * LIGHT_SCALE).saturating_as();
+            lights[(idx + 1) * 4 + 3] = (I16F16::from(rgb.g) * LIGHT_SCALE).saturating_as();
+        }
+        let mut spi = self.spi.borrow_mut();
+        spi.write(lights.as_slice());
+    }
+}
 
 #[entry]
 fn main() -> ! {
-    loop {}
+    {
+        use core::mem::MaybeUninit;
+        const HEAP_SIZE: usize = 8096;
+        static mut HEAP_MEM: [MaybeUninit<u8>; HEAP_SIZE] = [MaybeUninit::uninit(); HEAP_SIZE];
+        unsafe { HEAP.init(HEAP_MEM.as_ptr() as usize, HEAP_SIZE) }
+    }
+
+    let mut pac = Peripherals::take().unwrap();
+    let core = CorePeripherals::take().unwrap();
+    let sio = Sio::new(pac.SIO);
+    let mut watchdog = Watchdog::new(pac.WATCHDOG);
+
+    let pins = Pins::new(
+        pac.IO_BANK0,
+        pac.PADS_BANK0,
+        sio.gpio_bank0,
+        &mut pac.RESETS,
+    );
+
+    let clocks = init_clocks_and_plls(
+        12_000_000u32,
+        pac.XOSC,
+        pac.CLOCKS,
+        pac.PLL_SYS,
+        pac.PLL_USB,
+        &mut pac.RESETS,
+        &mut watchdog,
+    )
+    .ok()
+    .unwrap();
+
+    let mut delay = Delay::new(core.SYST, clocks.system_clock.freq().to_Hz());
+    let mut spi_clk = pins.gpio10.into_function();
+    let mut spi_sdo = pins.gpio11.into_function();
+    let spi = Spi::<_, _, _, 8>::new(pac.SPI1, (spi_sdo, spi_clk));
+    let mut spi = spi.init(
+        &mut pac.RESETS,
+        clocks.peripheral_clock.freq(),
+        1_u32.MHz(),
+        embedded_hal::spi::MODE_1,
+    );
+
+    let ui = BikeUI::new(spi);
+
+    // let app = App::new(Box::new(ui));
+    // app.tick(TRANS_PRIDE_DASHBOARD, TRANS_PRIDE_BODY);
+    ui.update_lights(TRANS_PRIDE_DASHBOARD, TRANS_PRIDE_BODY);
+
+    /*
+    spi.write(&[
+        0, 0, 0, 0, 0xe1, 0x80, 0x00, 0x00, 0xe1, 0x00, 0x80, 0x00, 0xe1, 0x00, 0x00, 0x80, 0xff,
+        0xff, 0xff, 0xff,
+    ]);
+    */
+
+    let mut led_pin = pins.led.into_push_pull_output();
+
+    loop {
+        led_pin.set_high().unwrap();
+        delay.delay_ms(500);
+        led_pin.set_low().unwrap();
+        delay.delay_ms(500);
+    }
 }
diff --git a/bike-lights/core/src/lib.rs b/bike-lights/core/src/lib.rs
index c8523eb..361d39b 100644
--- a/bike-lights/core/src/lib.rs
+++ b/bike-lights/core/src/lib.rs
@@ -4,7 +4,7 @@ extern crate alloc;
 use alloc::boxed::Box;
 use az::*;
 use core::{clone::Clone, cmp::PartialEq, ops::Sub, option::Option};
-use fixed::types::{I16F0, I16F16, I48F16, I8F8, U128F0, U16F0};
+use fixed::types::{I48F16, I8F8, U128F0, U16F0};
 
 mod patterns;
 pub use patterns::*;
diff --git a/bike-lights/core/src/patterns.rs b/bike-lights/core/src/patterns.rs
index e566a5d..0c8f609 100644
--- a/bike-lights/core/src/patterns.rs
+++ b/bike-lights/core/src/patterns.rs
@@ -46,12 +46,12 @@ pub const PRIDE_YELLOW: RGB<I8F8> = RGB {
 pub const PRIDE_GREEN: RGB<I8F8> = RGB {
     r: I8F8::lit("0"),
     g: I8F8::lit("0.5"),
-    b: I8F8::lit("0.14"),
+    b: I8F8::lit("0.05"),
 };
 
 pub const PRIDE_INDIGO: RGB<I8F8> = RGB {
-    r: I8F8::lit("0.14"),
-    g: I8F8::lit("0.25"),
+    r: I8F8::lit("0.04"),
+    g: I8F8::lit("0.15"),
     b: I8F8::lit("0.55"),
 };
 
@@ -62,15 +62,15 @@ pub const PRIDE_VIOLET: RGB<I8F8> = RGB {
 };
 
 pub const TRANS_BLUE: RGB<I8F8> = RGB {
-    r: I8F8::lit("0.36"),
-    g: I8F8::lit("0.81"),
+    r: I8F8::lit("0.06"),
+    g: I8F8::lit("0.41"),
     b: I8F8::lit("0.98"),
 };
 
 pub const TRANS_PINK: RGB<I8F8> = RGB {
     r: I8F8::lit("0.96"),
-    g: I8F8::lit("0.66"),
-    b: I8F8::lit("0.72"),
+    g: I8F8::lit("0.16"),
+    b: I8F8::lit("0.32"),
 };
 
 pub const OFF_DASHBOARD: DashboardPattern = [RGB_OFF; 3];