diff --git a/halloween-leds/src/main.rs b/halloween-leds/src/main.rs
index 5cd0be2..1a5d589 100644
--- a/halloween-leds/src/main.rs
+++ b/halloween-leds/src/main.rs
@@ -1,21 +1,15 @@
 #![no_main]
 #![no_std]
 
+use embedded_hal::delay::DelayNs;
 use embedded_hal::spi::SpiBus;
-use embedded_hal::{delay::DelayNs, digital::OutputPin};
 use panic_halt as _;
-use rp_pico::hal::gpio::bank0::Gpio0;
 use rp_pico::{
     entry,
     hal::{
         clocks::init_clocks_and_plls,
         fugit::RateExtU32,
-        gpio::{
-            bank0::{Gpio2, Gpio4},
-            FunctionSio, Pin, PullDown, SioOutput,
-        },
-        spi::{Enabled, Spi, SpiDevice, ValidSpiPinout},
-        uart::{DataBits, StopBits, UartConfig, UartPeripheral},
+        spi::Spi,
         Clock, Sio, Timer, Watchdog,
     },
     pac, Pins,
@@ -85,7 +79,7 @@ unsafe fn main() -> ! {
         // lights[7] = brightness as u8;
         brightness = brightness + step;
 
-        spi.write(lights.as_slice());
+        let _ = spi.write(lights.as_slice());
         timer.delay_ms(MS_PER_FRAME);
     }
 }