diff --git a/backend/src/main.rs b/backend/src/main.rs
index f7f1015..8f17b3a 100644
--- a/backend/src/main.rs
+++ b/backend/src/main.rs
@@ -46,8 +46,16 @@ fn main() -> Result<()> {
 
     let mut dmx_buffer = [0u8; 512];
 
-    let mut movinghead = fixtures::MovingHead14CH::new(1);
-    movinghead.dimmer = 134;
+    let mut movingheads = [
+        fixtures::MovingHead14CH::new(1),
+        fixtures::MovingHead14CH::new(15),
+        fixtures::MovingHead14CH::new(29),
+        fixtures::MovingHead14CH::new(43),
+    ];
+
+    for movinghead in movingheads.iter_mut() {
+        movinghead.dimmer = 134;
+    }
 
     let mut ser = serialport::new("/dev/ttyUSB0", 500_000)
         .timeout(Duration::from_millis(10))
@@ -69,10 +77,18 @@ fn main() -> Result<()> {
     'main: loop {
         let loop_start = Instant::now();
 
-        let hsl_color = Hsl::new(360.0 * ((t % FPS) as f32 / FPS as f32), 1.0, 0.5);
-        movinghead.rgb = hsl_color.into_color();
+        let dist = FPS as f32 / movingheads.len() as f32;
 
-        movinghead.render(&mut dmx_buffer);
+        for (i, movinghead) in movingheads.iter_mut().enumerate() {
+            let hsl_color = Hsl::new(
+                360.0 * ((t % FPS) as f32 / FPS as f32) + i as f32 * dist,
+                1.0,
+                0.5,
+            );
+            movinghead.rgb = hsl_color.into_color();
+
+            movinghead.render(&mut dmx_buffer);
+        }
 
         // write DMX data
         let write_result = ser.write(&dmx_buffer);