Notes

/*float senzorValue=0;
float voltageValue=0;
float temperatura=0;
void setup()
{
DDRD=0xF0;
DDRB=0x03;
DDRC=B000000;
command(0x28);
delay(500);
command(0x0E);
delay(500);
command(0x01);
delay(500);
command(0x06);
init_CAN();
command(0x80);
}


void command(char LcdCommand)
// Basic function used in giving command
{
// to LCD
int en = 1;
int rs = 0;
char UpperHalf, LowerHalf;
UpperHalf = LcdCommand & 0xF0;
// upper 4 bits of command
PORTD &= 0x0F;
// flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= UpperHalf;
PORTB &= ~(1<<rs);
PORTB |= (1<<en);
_delay_ms(10);
PORTB &= ~(1<<en);
_delay_ms(10);
LowerHalf = ((LcdCommand<<4) & 0xF0); //lower 4 bits of command
PORTD &= 0x0F; // flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= LowerHalf;
PORTB &= ~(1<<rs);
PORTB |= (1<<en);
_delay_ms(10);
PORTB &= ~(1<<en);
_delay_ms(10);
}


void data(char AsciiChar)
// Basic function used in giving data
{ // to LCD
int en =1;
int rs = 0;
char UpperHalf, LowerHalf;
UpperHalf = AsciiChar & 0xF0;
// upper 4 bits of data
PORTD &= 0x0F;
// flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= UpperHalf;
PORTB |= (1<<rs);
PORTB |= (1<<en);
_delay_ms(10);
PORTB &= ~(1<<en);
_delay_us(400);
LowerHalf = ((AsciiChar<<4) & 0xF0); //lower 4 bits of data
PORTD &= 0x0F; // flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= LowerHalf;
PORTB |= (1<<rs);
PORTB |= (1<<en);
_delay_ms(10);
PORTB &= ~(1<<en);
_delay_us(400); }
void init_CAN(void){
ADCSRA=B11000111;
}

uint16_t read_CAN (uint8_t intrare )
{
ADMUX=
ADCSRA=ADCSRA|0x40;
while(ADCSRA&0x40){};
return ADC;
}

void afisare(float voltageValue){
int voltage,i,v[4]={0};
command(0xc8);
data('v');delay(150);
data('=');delay(200);
voltage=voltageValue;
while(voltage!=0){
v[i]=voltage%10;
voltage=voltage/10;
i++;
}
for(i=3;i<=0;i--){
data(v[i]);
delay(199);

}
}
float senzorValue;
void loop()
{
senzorValue=afisare
command(0x80);
scriere(VAR1);
delay(1000);
command(0xc0);
data('hh');
delay(1000);
command(0x01);
}


*/

char rs=0;
char en=1;
int sensor_val=0;
long int voltage_val=0,media;
int temp_val=0;

int ogl_temp;
int ogl_sensor;
long int ogl_voltage;
bool last_digit0;

void command(char lcdCmd);
void data(char ascii);
void init_display();
void init_CAN();

void setup()
{
Serial.begin(9600);
DDRD=0xF0;
DDRB=0x03;
delay(50);
init_display();
init_CAN();

}

void command(char lcdCmd) // Basic function used in giving command
{ // to LCD
char UpperHalf, LowerHalf;

UpperHalf = lcdCmd & 0xF0; // upper 4 bits of command
PORTD &= 0x0F; // flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= UpperHalf;
PORTB &= ~(1<<rs);
PORTB |= (1<<en);
delay(10);
PORTB &= ~(1<<en);
delay(10);

LowerHalf = ((lcdCmd<<4) & 0xF0); //lower 4 bits of command
PORTD &= 0x0F; // flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= LowerHalf;
PORTB &= ~(1<<rs);
PORTB |= (1<<en);
delay(10);
PORTB &= ~(1<<en);
delay(10);
}

void data(char AsciiChar) // Basic function used in giving data
{ // to LCD
char UpperHalf, LowerHalf;

UpperHalf = AsciiChar & 0xF0; // upper 4 bits of data
PORTD &= 0x0F; // flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= UpperHalf;
PORTB |= (1<<rs);
PORTB |= (1<<en);
delay(10);
PORTB &= ~(1<<en);
_delay_us(400);

LowerHalf = ((AsciiChar<<4) & 0xF0); //lower 4 bits of data
PORTD &= 0x0F; // flushes upper half of PortD to 0, but retains lower half of PortD
PORTD |= LowerHalf;
PORTB |= (1<<rs);
PORTB |= (1<<en);
delay(10);
PORTB &= ~(1<<en);
_delay_us(400);
}

void init_CAN(){
//ADSCRA=0xC7;
}

void init_display(){
command(0x0E);
delay(50);
command(0x2C);
delay(50);
command(0x01);
delay(50);
}

void loop()
{
//command(0x80);
//delay(1000);
//command(0xC6);
//delay(1000);
//command(0x0F);
//delay(1000);
//command(0x01);
//delay(1000);
//data(0x33);
//delay(1000);

media=0;
for(int i=0;i<10;i++){
sensor_val=analogRead(A0);
voltage_val= sensor_val * (5000.0 / 1023.0);
media+=voltage_val;
}
voltage_val=media/10.0;
Serial.print("Nr cuante=");
Serial.print(sensor_val);
Serial.print("n");
Serial.print("Tensiunea=");
Serial.print(voltage_val);
Serial.print(" mV");
Serial.print("n");
temp_val=0.1*voltage_val;
Serial.print("Temperatura=");
Serial.print(temp_val);
Serial.print(" C");
Serial.print("n");

command(0x01);
delay(50);
data('T');
data('E');
data('M');
data('P');
data('=');
ogl_temp=0;
if(temp_val%10==0){
last_digit0=true;
}
else{
last_digit0=false;
}
while(temp_val){
ogl_temp=ogl_temp*10+temp_val%10;
temp_val/=10;
}
while(ogl_temp){
data(ogl_temp%10+48);
ogl_temp/=10;
if(last_digit0){
data(48);
}
}
data(96);
//data(248);
data('C');
delay(1000);


command(0xC0);
delay(50);
data('N');
data('=');
ogl_sensor=0;
if(sensor_val%10==0){
last_digit0=true;
}
else{
last_digit0=false;
}
while(sensor_val){
ogl_sensor=ogl_sensor*10+sensor_val%10;
sensor_val/=10;
}
while(ogl_sensor){
data(ogl_sensor%10+48);
ogl_sensor/=10;
if(last_digit0){
data(48);
}
}

delay(1000);


command(0xC8);
delay(50);
data('U');
data('=');

ogl_voltage=0;
if(voltage_val%10==0){
last_digit0=true;
}
else{
last_digit0=false;
}
while(voltage_val){
ogl_voltage=ogl_voltage*10+voltage_val%10;
voltage_val/=10;
}

while(ogl_voltage){
data(ogl_voltage%10+48);
ogl_voltage/=10;
if(last_digit0)
data(48);

}
data('m');
data('V');
delay(1000);
}