#ifndef F_CPU
#define F_CPU 1000000UL // 16 MHz clock speed
#endif
#define D4 eS_PORTD4
#define D5 eS_PORTD5
#define D6 eS_PORTD6
#define D7 eS_PORTD7
#define RS eS_PORTC6
#define EN eS_PORTC7

#include <string.h>
#include <stdio.h>
#include <avr/io.h>
#include <util/delay.h>
#include "lcd.h" //Can be download from the bottom of this article

int main(void)
{
	DDRD = 0xFF;
	DDRC = 0xFF;
	int i;
	Lcd4_Init();
	int result_h;
	int result_l;
	unsigned char output_l;
	unsigned char output_h=0b00000000;

	DDRB = 0xFF;
	//Configure the ADC module of the ATmega16
	ADMUX = 0b00000011;			//REFS1:0 = 01    -> AVCC as reference
								//ADLAR	  =  0	  -> Right adjust
								//MUX4:0  = 00011 -> ADC3 as input

	ADCSRA = 0b10000100;

	while(1)
	{

		ADCSRA |= (1 << ADSC);
		while(ADCSRA & (1 << ADSC)){;}

		output_l = ADCL;
		result_l = ADCL;
		//result_h = ADCH;
		output_h = ADCH | output_h;
		result_h = output_h;

		//result_h = result_h << 8;
		//result_h = result_h | result_l;

		//output_h = output_h << 6;
		//output_l = output_l >> 2;

		//output_h = output_h | output_l;

		float voltage = ((output_h << 8) | output_l )*4/1024;

		//char outLED[10];
		//char vt[] = "voltage:";
		//gcvt(voltage, 3, outLED);
		//sprintf(outLED,"voltage:%1.2f",voltage);

		//1.65

		int a = (int)voltage;
		int b = (int)(voltage * 10);
		int c = (int)(voltage * 100);

		a = a % 10;
		b = b % 10;
		c = c % 10;

		unsigned char num_1 = a + '0';
		unsigned char num_2 = b + '0';
		unsigned char num_3 = c + '0';


		Lcd4_Set_Cursor(1,1);
		/*for(int i=0;i<8;i++ ){
			Lcd4_Write_Char(vt[i]);
		}
		*/
		Lcd4_Write_Char(num_1);
		Lcd4_Write_Char('.');
		Lcd4_Write_Char(num_2);
		Lcd4_Write_Char(num_3);






		PORTB = output_l;



		//Lcd4_Write_String("electroSome LCD Hello World");
		//Lcd4_Write_String(outLED);
		/*
		for(i=0;i<15;i++)
		{
			_delay_ms(250);
		//	Lcd4_Shift_Left();
		}
		for(i=0;i<15;i++)
		{
			_delay_ms(250);
		//	Lcd4_Shift_Right();
		}
		Lcd4_Clear();
		//Lcd4_Set_Cursor(2,1);
		//Lcd4_Write_Char('e');
		//Lcd4_Write_Char('S');
		_delay_ms(1000);
		*/

	}



	/*
	//long long int result_h;
	//long long int result_l;
	//unsigned char output_l;
	//unsigned char output_h;


	//DDRB = 0xFF;
	//Configure the ADC module of the ATmega16
	//ADMUX = 0b00000011;			//REFS1:0 = 01    -> AVCC as reference
								//ADLAR	  =  0	  -> Right adjust
								//MUX4:0  = 00000 -> ADC0 as input

	//ADCSRA = 0b10000100;		//ADEN = 1	: enable
								//ADSC = 0	:
	while(1)
	{
		ADCSRA |= (1 << ADSC);
		while(ADCSRA & (1 << ADSC)){;}



		output_l = ADCL;
		result_l = ADCL;
		result_h = ADCH;
		output_h = ADCH;

		result_h = result_h << 8;
		result_h = result_h | result_l;

		output_h = output_h << 6;
		output_l = output_l >> 2;

		output_h = output_h | output_l;

		float voltage = (result_h)*4/1024;
		PORTB = ~output_h;

	}
	*/
	return 0;
}