diff --git a/pmme-device/rust-version/src/main.rs b/pmme-device/rust-version/src/main.rs
index eb430dc..49c37a1 100644
--- a/pmme-device/rust-version/src/main.rs
+++ b/pmme-device/rust-version/src/main.rs
@@ -46,35 +46,6 @@ pub struct Pms7003Data {
     pub particles_10um: u16,
 }
 
-fn oled_task(pm_data: Arc<Mutex<Pms7003Data>>, i2c: I2cDriver) -> Result<()> {
-    info!("Staring OLED Task");
-
-    let interface = I2CDisplayInterface::new(i2c);
-    let mut display = Ssd1306::new(interface, DisplaySize128x64, DisplayRotation::Rotate0)
-        .into_buffered_graphics_mode();
-
-    display.init().unwrap();
-
-    let raw: ImageRaw<BinaryColor> = ImageRaw::new(include_bytes!("../rust.raw"), 64);
-    let im = Image::new(&raw, Point::new(32, 0));
-
-    im.draw(&mut display).unwrap();
-    display.flush().map_err(|e| anyhow!("Could not flush display! {:?}", e))?;
-
-    FreeRtos::delay_ms(2000);
-    loop {
-        let current_pm_data = pm_data.lock().unwrap().clone();
-        display.clear(BinaryColor::Off).map_err(|e| anyhow!("Could not clear display! {:?}", e))?;
-        Text::new(
-            &format!("PM 2.5: {}", current_pm_data.pm2_5_atm),
-            Point::new(20, 40),
-            MonoTextStyle::new(&FONT_10X20, BinaryColor::On),
-        ).draw(&mut display).map_err(|e| anyhow!("Could not draw text! {:?}", e))?;
-        display.flush().map_err(|e| anyhow!("Could not flush display! {:?}", e))?;
-        FreeRtos::delay_ms(500);
-    }
-}
-
 // u16::from_be_bytes is too verbose
 fn get_u16(buf: &[u8]) -> u16 { ((buf[0] as u16) << 8) | buf[1] as u16 }
 
@@ -138,6 +109,35 @@ fn pm_sensor_task(pm_data: Arc<Mutex<Pms7003Data>>, uart: &UartDriver) -> Result
     }
 }
 
+fn oled_task(pm_data: Arc<Mutex<Pms7003Data>>, i2c: I2cDriver) -> Result<()> {
+    info!("Staring OLED Task");
+
+    let interface = I2CDisplayInterface::new(i2c);
+    let mut display = Ssd1306::new(interface, DisplaySize128x64, DisplayRotation::Rotate0)
+        .into_buffered_graphics_mode();
+
+    display.init().unwrap();
+
+    let raw: ImageRaw<BinaryColor> = ImageRaw::new(include_bytes!("../rust.raw"), 64);
+    let im = Image::new(&raw, Point::new(32, 0));
+
+    im.draw(&mut display).unwrap();
+    display.flush().map_err(|e| anyhow!("Could not flush display! {:?}", e))?;
+
+    FreeRtos::delay_ms(2000);
+    loop {
+        let current_pm_data = pm_data.lock().unwrap().clone();
+        display.clear(BinaryColor::Off).map_err(|e| anyhow!("Could not clear display! {:?}", e))?;
+        Text::new(
+            &format!("PM 2.5: {}", current_pm_data.pm2_5_atm),
+            Point::new(20, 40),
+            MonoTextStyle::new(&FONT_10X20, BinaryColor::On),
+        ).draw(&mut display).map_err(|e| anyhow!("Could not draw text! {:?}", e))?;
+        display.flush().map_err(|e| anyhow!("Could not flush display! {:?}", e))?;
+        FreeRtos::delay_ms(500);
+    }
+}
+
 fn main() -> Result<()> {
     // It is necessary to call this function once. Otherwise some patches to the runtime
     // implemented by esp-idf-sys might not link properly. See https://github.com/esp-rs/esp-idf-template/issues/71