diff --git a/src/main.rs b/src/main.rs
index f1692d7..d22b699 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,7 @@ use std::sync::{Arc, RwLock};
 use std::thread;
 use rs_ws281x::{RawColor, Controller, ControllerBuilder, ChannelBuilder, StripType};
 
-pub const LED_SIZE: i32 = 450;
+pub const LED_SIZE: usize = 450;
 pub const BRIGHTNESS: u8 = 255;
 
 fn main() {
@@ -13,18 +13,20 @@ fn main() {
     let lock = Arc::new(RwLock::new([p; LED_SIZE]));
     let lock_c = Arc::clone(&lock);
 
-    let controller = ControllerBuilder::new()
-    .channel(ChannelBuilder::new()
+    thread::spawn(move || {
+        let mut controller: Controller = ControllerBuilder::new()
+    .channel(0, ChannelBuilder::new()
         .pin(18)
-        .count(LED_SIZE)
+        .count(i32::try_from(LED_SIZE).unwrap())
         .strip_type(StripType::Ws2812)
         .brightness(BRIGHTNESS)
         .build()
     )
-    .build();
-    thread::spawn(move || loop {
-        let lights = lock_c.read().unwrap();
-        run_lights(&controller, &lights);
+    .build().unwrap();
+	loop {
+        	let lights = lock_c.read().unwrap();
+        	run_lights(&mut controller, &lights);
+	}
     });
     let mut x: u8 = 0;
     loop { 
diff --git a/src/util/lights.rs b/src/util/lights.rs
index 821acb3..8d7d377 100644
--- a/src/util/lights.rs
+++ b/src/util/lights.rs
@@ -2,14 +2,14 @@ use rs_ws281x::RawColor;
 use rs_ws281x::Controller;
 use rs_ws281x::WS2811Error;
 
-pub fn run_lights(controller: &Controller, values: &[RawColor; crate::LED_SIZE]) -> Result<(), WS2811Error> {
+pub fn run_lights(controller: &mut Controller, values: &[RawColor; crate::LED_SIZE]) -> Result<(), WS2811Error> {
     // println!("Value: {:?}", strip[0]);
     let channels: Vec<usize> = controller.channels();
     let mut strip = controller.leds_mut(channels[0]);
-    for x in 0..strip.len() {
+    for i in 0..strip.len() {
         strip[i] = values[i];
     }
 
     controller.render();
     controller.wait()
-}
\ No newline at end of file
+}