diff --git a/firmware/src/brightness.rs b/firmware/src/brightness.rs
deleted file mode 100644
index 9d06ff7..0000000
--- a/firmware/src/brightness.rs
+++ /dev/null
@@ -1,90 +0,0 @@
-#![deny(unsafe_code)]
-#![no_main]
-#![no_std]
-
-use panic_halt as _;
-
-use cortex_m_rt::entry;
-use stm32f1xx_hal::{adc, pac, prelude::*, timer::{Channel, Tim2NoRemap}};
-
-use stm32f1xx_hal::usb::{Peripheral, UsbBus};
-use usb_device::prelude::*;
-use usbd_serial::{SerialPort, USB_CLASS_CDC};
-
-#[entry]
-fn main() -> ! {
-	// ====================== general setup =================
-	// Acquire peripherals
-	let p = pac::Peripherals::take().unwrap();
-	let mut flash = p.FLASH.constrain();
-	let rcc = p.RCC.constrain();
-
-	// Setup GPIOA
-	let mut gpioa = p.GPIOA.split();
-
-	// configure clock
-	let clocks = rcc
-		.cfgr
-		.use_hse(16.MHz())
-		.sysclk(48.MHz())
-		.pclk1(24.MHz())
-		.freeze(&mut flash.acr);
-
-	// ====================== ADC setup =================
-	// Configure ADC clocks
-	// Default value is the slowest possible ADC clock: PCLK2 / 8. Meanwhile ADC
-	// clock is configurable. So its frequency may be tweaked to meet certain
-	// practical needs. User specified value is be approximated using supported
-	// prescaler values 2/4/6/8.
-	// let clocks = rcc.cfgr.adcclk(2.MHz()).freeze(&mut flash.acr);
-
-	// Setup ADC
-	let mut adc1 = adc::Adc::adc1(p.ADC1, clocks);
-
-	// Configure pa1 as an analog input
-	let mut ch0 = gpioa.pa1.into_analog(&mut gpioa.crl);
-
-	// ====================== PWM setup =================
-	let mut afio = p.AFIO.constrain();
-	let c1 = gpioa.pa0.into_alternate_push_pull(&mut gpioa.crl);
-	let mut pwm = p.TIM2.pwm_hz::<Tim2NoRemap, _, _>(c1, &mut afio.mapr, 1.kHz(), &clocks);
-	pwm.enable(Channel::C1);
-	let pwm_max = pwm.get_max_duty() as f32;
-	
-	// ====================== USB setup =================
-	assert!(clocks.usbclk_valid());
-	let mut usb_dp = gpioa.pa12.into_push_pull_output(&mut gpioa.crh);
-	let usb = Peripheral {
-		usb: p.USB,
-		pin_dm: gpioa.pa11,
-		pin_dp: usb_dp.into_floating_input(&mut gpioa.crh),
-	};
-	let usb_bus = UsbBus::new(usb);
-
-	let mut serial = SerialPort::new(&usb_bus);
-
-	let mut usb_dev = UsbDeviceBuilder::new(&usb_bus, UsbVidPid(0x16c0, 0x27dd))
-		.manufacturer("FLC Meow!")
-		.product("Serial port")
-		.serial_number("01189998819991197253")
-		.device_class(USB_CLASS_CDC)
-		.build();
-
-	loop {
-		let data: u16 = adc1.read(&mut ch0).unwrap();
-		pwm.set_duty(Channel::C1, (pwm_max * ((0xffff as f32) / (data as f32))) as u16);
-
-		let mut buf = ryu::Buffer::new();
-		let ret = buf.format((0xffff as f32) / (data as f32)).as_bytes();
-
-		let mut write_offset = 0;
-		while write_offset < 8 {
-			match serial.write(&ret[write_offset..8]) {
-				Ok(len) if len > 0 => {
-					write_offset += len;
-				}
-				_ => {}
-			}
-		}
-	}
-}
diff --git a/firmware/src/led.rs b/firmware/src/led.rs
deleted file mode 100644
index b67232f..0000000
--- a/firmware/src/led.rs
+++ /dev/null
@@ -1,45 +0,0 @@
-#![deny(unsafe_code)]
-#![no_std]
-#![no_main]
-
-use panic_halt as _;
-
-use nb::block;
-
-use cortex_m_rt::entry;
-use stm32f1xx_hal::{pac, prelude::*, timer::Timer};
-
-#[entry]
-fn main() -> ! {
-    // Get access to the core peripherals from the cortex-m crate
-    let cp = cortex_m::Peripherals::take().unwrap();
-    // Get access to the device specific peripherals from the peripheral access crate
-    let dp = pac::Peripherals::take().unwrap();
-
-    // Take ownership over the raw flash and rcc devices and convert them into the corresponding
-    // HAL structs
-    let mut flash = dp.FLASH.constrain();
-    let rcc = dp.RCC.constrain();
-
-    // Freeze the configuration of all the clocks in the system and store the frozen frequencies in
-    // `clocks`
-    let clocks = rcc.cfgr.freeze(&mut flash.acr);
-
-    // Acquire the GPIOC peripheral
-    let mut gpioa = dp.GPIOA.split();
-
-    // Configure gpio C pin 13 as a push-pull output. The `crh` register is passed to the function
-    // in order to configure the port. For pins 0-7, crl should be passed instead.
-    let mut led = gpioa.pa0.into_push_pull_output(&mut gpioa.crl);
-    // Configure the syst timer to trigger an update every second
-    let mut timer = Timer::syst(cp.SYST, &clocks).counter_hz();
-    timer.start(1.Hz()).unwrap();
-
-    // Wait for the timer to trigger an update and change the state of the LED
-    loop {
-        block!(timer.wait()).unwrap();
-        led.set_high();
-        block!(timer.wait()).unwrap();
-        led.set_low();
-    }
-}
diff --git a/firmware/src/main.rs b/firmware/src/main.rs
deleted file mode 120000
index 3dfc59e..0000000
--- a/firmware/src/main.rs
+++ /dev/null
@@ -1 +0,0 @@
-/home/fly/hw-stuff/112VU/firmware/src/brightness.rs
\ No newline at end of file
diff --git a/firmware/src/main.rs b/firmware/src/main.rs
new file mode 100644
index 0000000..214c5de
--- /dev/null
+++ b/firmware/src/main.rs
@@ -0,0 +1,95 @@
+#![deny(unsafe_code)]
+#![no_main]
+#![no_std]
+
+use panic_halt as _;
+
+use nb::block;
+
+use cortex_m_rt::entry;
+use stm32f1xx_hal::{adc, pac, prelude::*, timer::{Channel, Tim2NoRemap}};
+
+use stm32f1xx_hal::usb::{Peripheral, UsbBus};
+use usb_device::prelude::*;
+use usbd_serial::{SerialPort, USB_CLASS_CDC};
+
+#[entry]
+fn main() -> ! {
+	// ====================== general setup =================
+	// Acquire peripherals
+	let cp = cortex_m::Peripherals::take().unwrap();
+	let p = pac::Peripherals::take().unwrap();
+	let mut flash = p.FLASH.constrain();
+	let rcc = p.RCC.constrain();
+
+	// Setup GPIOA
+	let mut gpioa = p.GPIOA.split();
+
+	// configure clock
+	let clocks = rcc
+		.cfgr
+		.use_hse(16.MHz())
+		.sysclk(48.MHz())
+		.pclk1(24.MHz())
+		.freeze(&mut flash.acr);
+
+	// ====================== ADC setup =================
+	// Configure ADC clocks
+	// Default value is the slowest possible ADC clock: PCLK2 / 8. Meanwhile ADC
+	// clock is configurable. So its frequency may be tweaked to meet certain
+	// practical needs. User specified value is be approximated using supported
+	// prescaler values 2/4/6/8.
+	// let clocks = rcc.cfgr.adcclk(2.MHz()).freeze(&mut flash.acr);
+
+	// Setup ADC
+	let mut adc1 = adc::Adc::adc1(p.ADC1, clocks);
+
+	// Configure pa1 as an analog input
+	let mut ch0 = gpioa.pa1.into_analog(&mut gpioa.crl);
+
+	// ====================== PWM setup =================
+	let mut afio = p.AFIO.constrain();
+	let c1 = gpioa.pa0.into_alternate_push_pull(&mut gpioa.crl);
+	let mut pwm = p.TIM2.pwm_hz::<Tim2NoRemap, _, _>(c1, &mut afio.mapr, 1.kHz(), &clocks);
+	pwm.enable(Channel::C1);
+	let pwm_max = pwm.get_max_duty() as u16;
+	
+	// ====================== USB setup =================
+	assert!(clocks.usbclk_valid());
+	let mut usb_dp = gpioa.pa12.into_push_pull_output(&mut gpioa.crh);
+	let usb = Peripheral {
+		usb: p.USB,
+		pin_dm: gpioa.pa11,
+		pin_dp: usb_dp.into_floating_input(&mut gpioa.crh),
+	};
+	let usb_bus = UsbBus::new(usb);
+
+	let mut serial = SerialPort::new(&usb_bus);
+
+	let mut usb_dev = UsbDeviceBuilder::new(&usb_bus, UsbVidPid(0x16c0, 0x27dd))
+		.manufacturer("FLC Meow!")
+		.product("Serial port")
+		.serial_number("01189998819991197253")
+		.device_class(USB_CLASS_CDC)
+		.build();
+
+	loop {
+		let data: u16 = adc1.read(&mut ch0).unwrap();
+		let mut pwm_val = data as f32 / 0xfff as f32;
+		let pwm_duty = (pwm_max as f32 * pwm_val as f32) as u16;
+		pwm.set_duty(Channel::C1, pwm_duty);
+
+		let mut buf = ryu::Buffer::new();
+		let ret = buf.format(pwm_val).as_bytes();
+
+//		let mut write_offset = 0;
+//		while write_offset < 8 {
+//			match serial.write(&ret[write_offset..8]) {
+//				Ok(len) if len > 0 => {
+//					write_offset += len;
+//				}
+//				_ => {}
+//			}
+//		}
+	}
+}