diff --git a/fan-controller/src/fan.rs b/fan-controller/src/fan.rs
index 0e648fc..a4f4704 100644
--- a/fan-controller/src/fan.rs
+++ b/fan-controller/src/fan.rs
@@ -1,7 +1,6 @@
 //! ebm-pabst [RadiCal centrifugal fans in scroll housings for residential ventilation](https://www.ebmpapst.com/us/en/campaigns/product-campaigns/centrifugal-fans/radical-with-scroll-housing.html)
 //! specific configuration and constants
 
-use crate::string_buffer::StringBuffer;
 use crate::{configuration, modbus};
 use cortex_m::prelude::_embedded_hal_serial_Write;
 use defmt::{error, info, Format};
diff --git a/fan-controller/src/main.rs b/fan-controller/src/main.rs
index 311c53b..9b6aefd 100644
--- a/fan-controller/src/main.rs
+++ b/fan-controller/src/main.rs
@@ -46,7 +46,6 @@ use mqtt::{Encode, TryDecode};
 use rand::RngCore;
 use reqwless::client::{TlsConfig, TlsVerify};
 use static_cell::StaticCell;
-use string_buffer::StringBuffer;
 
 use {defmt_rtt as _, panic_probe as _};
 
@@ -72,7 +71,6 @@ mod configuration;
 mod fan;
 mod modbus;
 mod mqtt;
-mod string_buffer;
 
 bind_interrupts!(struct Irqs {
     PIO0_IRQ_0 => PioInterruptHandler<PIO0>;
@@ -703,7 +701,15 @@ async fn mqtt_task(
                 Message::PredefinedPublish(publish) => match publish {
                     PredefinedPublish::FanPercentageState { setting } => {
                         info!("Sending percentage state publish {}", setting);
-                        let buffer: StringBuffer<5> = setting.into();
+                        // let buffer: StringBuffer<5> = setting.into();
+                        let buffer = match heapless::String::<5>::try_from(setting.0) {
+                            Ok(buffer) => buffer,
+                            Err(error) => {
+                                error!("Error converting setting to string: {:?}", error);
+                                continue;
+                            }
+                        };
+
                         let packet = Publish {
                             topic_name: "fancontroller/speed/percentage_state",
                             payload: buffer.as_bytes(),
diff --git a/fan-controller/src/string_buffer.rs b/fan-controller/src/string_buffer.rs
deleted file mode 100644
index b979d92..0000000
--- a/fan-controller/src/string_buffer.rs
+++ /dev/null
@@ -1,37 +0,0 @@
-use crate::fan;
-
-/// Like a string with length and capacity of 5. Used for sending publish packets to Home Assistant through MQTT
-pub(crate) struct StringBuffer<const N: usize> {
-    buffer: [u8; N],
-    start_index: usize,
-}
-
-impl<const N: usize> StringBuffer<N> {
-    pub(crate) fn as_bytes(&self) -> &[u8] {
-        &self.buffer[self.start_index..]
-    }
-}
-
-impl From<fan::Setting> for StringBuffer<5> {
-    fn from(setting: fan::Setting) -> Self {
-        // The largest value the set point can assume is 64000 which is 5 characters long
-        let mut buffer = [0; 5];
-        let mut index = 4;
-        let mut remainder = setting.0;
-        loop {
-            let digit = remainder % 10;
-            // Convert digit to ASCII (which is also valid utf-8)
-            buffer[index] = digit as u8 + b'0';
-            remainder /= 10;
-            if remainder <= 0 {
-                break;
-            }
-            index -= 1;
-        }
-
-        Self {
-            buffer,
-            start_index: index,
-        }
-    }
-}