diff --git a/firmware/src/hw/display_led.cpp b/firmware/src/hw/display_led.cpp
new file mode 100644
index 0000000..8d70ac8
--- /dev/null
+++ b/firmware/src/hw/display_led.cpp
@@ -0,0 +1,180 @@
+/**** Includes ****/
+#include "../utils/utils.h"
+#include "display_led.h"
+
+using namespace hw;
+
+/**** Private definitions ****/
+/**** Private constants ****/
+/**** Private variables ****/
+/**** Private function declarations ****/
+static uint8_t img_gen_dot10(uint8_t percent);
+static uint8_t img_gen_dot20(uint8_t percent);
+static uint8_t img_gen_bar(uint8_t percent);
+
+/**** Public function definitions ****/
+hw::DisplayLed::DisplayLed(board::DigitalOut* led0, board::DigitalOut* led1, board::DigitalOut* led2, board::DigitalOut* led3, board::DigitalOut* led4, board::DigitalOut* led5, board::PWMout* common)
+{
+	this->led0 = led0;
+	this->led1 = led1;
+	this->led2 = led2;
+	this->led3 = led3;
+	this->led4 = led4;
+	this->led5 = led5;
+	this->common = common;
+	
+	this->led0->write(0);
+	this->led1->write(0);
+	this->led2->write(0);
+	this->led3->write(0);
+	this->led4->write(0);
+	this->led5->write(0);
+	this->common->write(0);
+}
+
+hw::DisplayLed::~DisplayLed(void)
+{
+	this->led0->write(0);
+	this->led1->write(0);
+	this->led2->write(0);
+	this->led3->write(0);
+	this->led4->write(0);
+	this->led5->write(0);
+	this->common->write(0);
+}
+
+void hw::DisplayLed::show_percent(uint8_t percent, style_t style)
+{
+	uint8_t image = 0x00;
+	
+	switch(style)
+	{
+		case LED_DSP_BAR:
+		image = img_gen_bar(percent);
+		break;
+		
+		case LED_DSP_DOT10:
+		image = img_gen_dot10(percent);
+		break;
+		
+		default:
+		image = img_gen_dot20(percent);
+		break;
+	}
+	
+	this->write(image);
+}
+
+void hw::DisplayLed::write(uint8_t image)
+{
+	if(image&0x01) this->led0->write(1);
+	else this->led0->write(0);
+	
+	if(image&0x02) this->led1->write(1);
+	else this->led1->write(0);
+	
+	if(image&0x04) this->led2->write(1);
+	else this->led2->write(0);
+	
+	if(image&0x08) this->led3->write(1);
+	else this->led3->write(0);
+	
+	if(image&0x10) this->led4->write(1);
+	else this->led4->write(0);
+	
+	if(image&0x20) this->led5->write(1);
+	else this->led5->write(0);
+}
+
+void hw::DisplayLed::set_brigthness(uint8_t percent)
+{
+	this->common->write(percent);
+}
+
+/**** Private function definitions ****/
+static uint8_t img_gen_dot10(uint8_t percent)
+{
+	switch(percent)
+	{
+		case 0 ... 5:
+		return 0x01;
+		
+		case 6 ... 15:
+		return 0x03;
+		
+		case 16 ... 25:
+		return 0x02;
+		
+		case 26 ... 35:
+		return 0x06;
+		
+		case 36 ... 45:
+		return 0x04;
+		
+		case 46 ... 55:
+		return 0x0C;
+		
+		case 56 ... 65:
+		return 0x08;
+		
+		case 66 ... 75:
+		return 0x18;
+		
+		case 76 ... 85:
+		return 0x10;
+		
+		case 86 ... 95:
+		return 0x30;
+		
+		default:
+		return 0x20;
+	}
+}
+
+static uint8_t img_gen_dot20(uint8_t percent)
+{
+	switch(percent)
+	{
+		case 0 ... 10:
+		return 0x01;
+		
+		case 11 ... 30:
+		return 0x02;
+		
+		case 31 ... 50:
+		return 0x04;
+		
+		case 51 ... 70:
+		return 0x08;
+		
+		case 71 ... 90:
+		return 0x10;
+		
+		default:
+		return 0x20;
+	}
+}
+
+static uint8_t img_gen_bar(uint8_t percent)
+{
+	switch(percent)
+	{
+		case 0 ... 10:
+		return 0x01;
+		
+		case 11 ... 30:
+		return 0x03;
+		
+		case 31 ... 50:
+		return 0x07;
+		
+		case 51 ... 70:
+		return 0x0F;
+		
+		case 71 ... 90:
+		return 0x1F;
+		
+		default:
+		return 0x3F;
+	}
+}
\ No newline at end of file
diff --git a/firmware/src/hw/display_led.h b/firmware/src/hw/display_led.h
new file mode 100644
index 0000000..8bba1aa
--- /dev/null
+++ b/firmware/src/hw/display_led.h
@@ -0,0 +1,47 @@
+#ifndef DISPLAY_LED_H_
+#define DISPLAY_LED_H_
+
+/**** Includes ****/
+#include <stdint.h>
+#include "../board/dout.h"
+#include "../board/pwm.h"
+
+namespace hw {
+
+/**** Public definitions ****/
+
+class DisplayLed
+{
+	protected:
+	board::DigitalOut* led0;
+	board::DigitalOut* led1;
+	board::DigitalOut* led2;
+	board::DigitalOut* led3;
+	board::DigitalOut* led4;
+	board::DigitalOut* led5;
+	board::PWMout* common;
+	
+	public:
+	typedef enum {
+		LED_DSP_DOT20,
+		LED_DSP_DOT10,
+		LED_DSP_BAR
+	} style_t;
+	
+	DisplayLed(board::DigitalOut* led0, board::DigitalOut* led1, board::DigitalOut* led2, board::DigitalOut* led3, board::DigitalOut* led4, board::DigitalOut* led5, board::PWMout* common);
+	~DisplayLed(void);
+	
+	void show_percent(uint8_t percent, style_t style);
+	void write(uint8_t image);
+	
+	void set_brigthness(uint8_t percent);
+};
+
+/**** Public function declarations ****/
+
+#ifdef TESTING
+#endif
+
+} //namespace
+
+#endif /* DISPLAY_LED_H_ */
\ No newline at end of file