diff --git a/Cargo.toml b/Cargo.toml
index 1f0888b..7515d93 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,8 @@ embassy-usb = { version = "0.1.0", git = "https://github.com/embassy-rs/embassy"
 embassy-time = { version = "0.1.0", git = "https://github.com/embassy-rs/embassy", features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-futures = { version = "0.1.0", git = "https://github.com/embassy-rs/embassy" }
 
+numtoa = "0.2.4"
+
 usbd-hid = "0.6.1"
 
 defmt = "0.3"
@@ -23,4 +25,4 @@ panic-probe = { version = "0.3", features = ["print-defmt"] }
 
 [features]
 serial = []
-# default =  ["serial"]
\ No newline at end of file
+default =  ["serial"]
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index fe657e9..628a8c3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,7 +25,7 @@ use usbd_hid::descriptor::MouseReport;
 use crate::{mouse_hid::mouse_config::MouseConfig, mouse_hid::MouseHID};
 
 #[cfg(feature = "serial")]
-use crate::usb_serial::Serial;
+use crate::usb_serial::{Serial, SerialConfig};
 
 use crate::mouse_sensor::{MouseSensor, MouseSensorPins};
 
@@ -88,7 +88,7 @@ where
     T: Instance,
     CSP: CsPin<T> + 'd,
 {
-    let mut serial = Serial::new(usb);
+    let mut serial = Serial::new(usb, SerialConfig::new());
 
     let usb_future = Serial::run_usb().await;
 
@@ -104,7 +104,8 @@ where
                 //     pan: 0,
                 // };
 
-                serial.send_msg("test").await;
+                serial.send_number(x, 10).await;
+                serial.send_number(y, 10).await;
             }
         }
     };
diff --git a/src/mouse_sensor/wrapper.rs b/src/mouse_sensor/wrapper.rs
index ea58f6b..8425704 100644
--- a/src/mouse_sensor/wrapper.rs
+++ b/src/mouse_sensor/wrapper.rs
@@ -66,7 +66,7 @@ where
     T: Instance,
     CSP: CsPin<T> + 'd,
 {
-    spi_device: PAW3212DB_TJDT<'d, L, CSP, T>,
+    pub spi_device: PAW3212DB_TJDT<'d, L, CSP, T>,
 
     led: Output<'d, PIN_25>,
 }
diff --git a/src/usb_serial/mod.rs b/src/usb_serial/mod.rs
index 2edbaad..44e28e0 100644
--- a/src/usb_serial/mod.rs
+++ b/src/usb_serial/mod.rs
@@ -1,3 +1,7 @@
+mod serial_config;
+
+use numtoa::NumToA;
+
 use core::future::Future;
 
 use embassy_rp::usb::Driver;
@@ -6,6 +10,8 @@ use embassy_rp::{interrupt, peripherals::USB};
 use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
 use embassy_usb::{Builder, Config, UsbDevice};
 
+pub use serial_config::SerialConfig;
+
 static mut DEVICE_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
 static mut CONFIG_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
 static mut BOS_DESCRIPTOR_BUFFER: [u8; 256] = [0; 256];
@@ -19,16 +25,19 @@ pub struct Serial<'a> {
 }
 
 impl Serial<'static> {
-    pub fn new(usb: USB) -> Serial<'static> {
+    pub fn new(usb: USB, serial_config: SerialConfig<'static>) -> Serial<'static> {
         // Create the driver, from the HAL.
         let irq = interrupt::take!(USBCTRL_IRQ);
         let driver = Driver::new(usb, irq);
 
         // Create embassy-usb Config
-        let mut config = Config::new(0xc0de, 0xcafe);
-        config.manufacturer = Some("Embassy");
-        config.product = Some("USB-serial example");
-        config.serial_number = Some("12345678");
+        let mut config = Config::new(
+            serial_config.vendor_id as u16,
+            serial_config.product_id as u16,
+        );
+        config.manufacturer = Some(serial_config.manufacturer);
+        config.product = Some(serial_config.product);
+        config.serial_number = Some(serial_config.serial_number);
         config.max_power = 100;
         config.max_packet_size_0 = 64;
 
@@ -68,7 +77,18 @@ impl Serial<'static> {
         unsafe { USB.as_mut().unwrap().run() }
     }
 
-    pub async fn send_msg(&mut self, msg: &str) {
-        self.class.write_packet(msg.as_bytes()).await.unwrap_or(());
+    pub async fn send_msg(&mut self, s: &str) {
+        self.class.write_packet(s.as_bytes()).await.unwrap_or(());
+    }
+
+    pub async fn send_number<T, I>(&mut self, i: T, base: I)
+    where
+        T: NumToA<I>,
+    {
+        let mut buf = [0; 256];
+
+        let s = i.numtoa_str(base, &mut buf);
+
+        self.send_msg(s).await;
     }
 }