diff --git a/eink.hpp b/eink.hpp
index 23704a0..820d365 100644
--- a/eink.hpp
+++ b/eink.hpp
@@ -7,11 +7,10 @@
 #include "../clock.hpp"
 #include "../io/io.hpp"
 
-template <typename Spi, io::P RstPin, io::P DcPin, io::P BusyPin>
-class Epd {
-	static constexpr auto width = uint16_t{200};
-	static constexpr auto height = uint16_t{200};
+namespace eink {
 
+template <uint16_t Width, uint16_t Height, typename Spi, io::P RstPin, io::P DcPin, io::P BusyPin>
+class Eink {
 	struct Cmd {
 		static constexpr auto SW_RESET = uint8_t{0x12};
 		static constexpr auto DRIVER_OUTPUT_CONTROL = uint8_t{0x01};
@@ -29,137 +28,134 @@ class Epd {
 		static constexpr auto DEEP_SLEEP_MODE = uint8_t{0x10};
 	};
 
-	io::Pin<RstPin> m_rst;
-	io::Pin<DcPin> m_dc;
-	io::Pin<BusyPin> m_bsy;
+	static io::Pin<RstPin> m_rst;
+	static io::Pin<DcPin> m_dc;
+	static io::Pin<BusyPin> m_bsy;
 
   public:
-	Epd() = default;
-	~Epd() = default;
-
-	int Init()
+	static void init()
 	{
 		m_rst.dir(io::Dir::OUT);
 		m_dc.dir(io::Dir::OUT);
 		m_bsy.dir(io::Dir::IN);
 		Spi::init();
 
-		Reset();
+		reset();
 
-		WaitUntilIdle();
-		SendCommand(Cmd::SW_RESET);
-		WaitUntilIdle();
+		waitUntilIdle();
+		sendCommand(Cmd::SW_RESET);
+		waitUntilIdle();
 
-		SendCommand(Cmd::DRIVER_OUTPUT_CONTROL);
-		SendData(0xC7);
-		SendData(0x00);
-		SendData(0x01);
+		sendCommand(Cmd::DRIVER_OUTPUT_CONTROL);
+		sendData(0xC7);
+		sendData(0x00);
+		sendData(0x01);
 
-		SendCommand(Cmd::DATA_ENTRY_MODE);
-		SendData(0x01);
+		sendCommand(Cmd::DATA_ENTRY_MODE);
+		sendData(0x01);
 
-		SendCommand(Cmd::SET_RAM_X_ADDR_POSITIONS);
-		SendData(0x00);
-		SendData((width / 8) - 1);
+		sendCommand(Cmd::SET_RAM_X_ADDR_POSITIONS);
+		sendData(0x00);
+		sendData((Width / 8) - 1);
 
-		SendCommand(Cmd::SET_RAM_Y_ADDR_POSITIONS);
-		SendData(height - 1);
-		SendData(0x00);
-		SendData(0x00);
-		SendData(0x00);
+		sendCommand(Cmd::SET_RAM_Y_ADDR_POSITIONS);
+		sendData(Height - 1);
+		sendData(0x00);
+		sendData(0x00);
+		sendData(0x00);
 
-		SendCommand(Cmd::BORDER_WAVEFORM_CONTROL);
-		SendData(0x05);
+		sendCommand(Cmd::BORDER_WAVEFORM_CONTROL);
+		sendData(0x05);
 
-		SendCommand(Cmd::READ_TEMPERATURE_SENSOR);
-		SendData(0x80);
+		sendCommand(Cmd::READ_TEMPERATURE_SENSOR);
+		sendData(0x80);
 
-		SendCommand(Cmd::SET_RAM_X_ADDR);
-		SendData(0x00);
+		sendCommand(Cmd::SET_RAM_X_ADDR);
+		sendData(0x00);
 
-		SendCommand(Cmd::SET_RAM_Y_ADDR);
-		SendData(height - 1);
-		SendData(0x00);
+		sendCommand(Cmd::SET_RAM_Y_ADDR);
+		sendData(Height - 1);
+		sendData(0x00);
 
-		WaitUntilIdle();
-
-		return 0;
+		waitUntilIdle();
 	}
 
-	void SendCommand(unsigned char command)
+	static void sendCommand(const uint8_t command)
 	{
 		m_dc = false;
-		SpiTransfer(command);
+		spiTransfer(command);
 	}
 
-	void SendData(unsigned char data)
+	static void sendData(const uint8_t data)
 	{
 		m_dc = true;
-		SpiTransfer(data);
+		spiTransfer(data);
 	}
 
-	void WaitUntilIdle()
+	static void waitUntilIdle()
 	{
 		while (m_bsy) {
 			_delay_ms(100);
 		}
 	}
 
-	void Reset()
+	static void reset()
 	{
 		m_rst = true;
 		_delay_ms(200);
-		m_rst = false; // module reset
+		m_rst = false;
 		_delay_ms(10);
 		m_rst = true;
 		_delay_ms(200);
 	}
 
-	void DisplayFrame(const unsigned char *frame_buffer_black, const unsigned char *frame_buffer_red)
+	static void draw(const uint8_t *blackFrame, const uint8_t *redFrame)
 	{
-		SendCommand(Cmd::WRITE_RAM_BLACK);
-		for (auto i = uint16_t{0}; i < width * height / 8; i++) {
-			SendData(pgm_read_byte(&frame_buffer_black[i]));
+		sendCommand(Cmd::WRITE_RAM_BLACK);
+		for (auto i = uint16_t{0}; i < Width * Height / 8; i++) {
+			sendData(pgm_read_byte(&blackFrame[i]));
 		}
-		SendCommand(Cmd::WRITE_RAM_RED);
-		for (auto i = uint16_t{0}; i < width * height / 8; i++) {
-			SendData(~pgm_read_byte(&frame_buffer_red[i]));
+		sendCommand(Cmd::WRITE_RAM_RED);
+		for (auto i = uint16_t{0}; i < Width * Height / 8; i++) {
+			sendData(~pgm_read_byte(&redFrame[i]));
 		}
 
-		SendCommand(Cmd::DISPLAY_UPDATE_CONTROL_2);
-		SendData(0xF7);
-		SendCommand(Cmd::UPDATE_DISPLAY);
-		WaitUntilIdle();
+		sendCommand(Cmd::DISPLAY_UPDATE_CONTROL_2);
+		sendData(0xF7);
+		sendCommand(Cmd::UPDATE_DISPLAY);
+		waitUntilIdle();
 	}
 
-	void DisplayClear()
+	static void clear()
 	{
-		SendCommand(Cmd::WRITE_RAM_BLACK);
-		for (auto i = uint16_t{0}; i < width * height / 8; i++) {
-			SendData(0xff);
+		sendCommand(Cmd::WRITE_RAM_BLACK);
+		for (auto i = uint16_t{0}; i < Width * Height / 8; i++) {
+			sendData(0xff);
 		}
-		SendCommand(Cmd::WRITE_RAM_RED);
-		for (auto i = uint16_t{0}; i < width * height / 8; i++) {
-			SendData(0x00);
+		sendCommand(Cmd::WRITE_RAM_RED);
+		for (auto i = uint16_t{0}; i < Width * Height / 8; i++) {
+			sendData(0x00);
 		}
 
-		SendCommand(Cmd::DISPLAY_UPDATE_CONTROL_2);
-		SendData(0xF7);
-		SendCommand(Cmd::UPDATE_DISPLAY);
-		WaitUntilIdle();
+		sendCommand(Cmd::DISPLAY_UPDATE_CONTROL_2);
+		sendData(0xF7);
+		sendCommand(Cmd::UPDATE_DISPLAY);
+		waitUntilIdle();
 	}
 
-	void Sleep()
+	static void sleep()
 	{
-		SendCommand(Cmd::DEEP_SLEEP_MODE);
-		SendData(0x01);
+		sendCommand(Cmd::DEEP_SLEEP_MODE);
+		sendData(0x01);
 		_delay_ms(100);
 	}
 
-	void SpiTransfer(unsigned char data)
+	static void spiTransfer(const uint8_t data)
 	{
 		Spi::select(true);
 		Spi::transfer(data);
 		Spi::select(false);
 	}
 };
+
+} // namespace eink