how to dispaly the a/d value from PIC16F877 using visual basic in digital value

hi i'm a newbie in this one. can anyone help me with this? i'm using miKroC for programming the microcontroller. now i want to display the readings of the micocontroller in visual basic. for example i have a voltage output 4v read by the ucontroller and want to display the digital output in visual basic... thank you very much for sparing your time...

send the value to PC using UART and then display it in VB software after reading from COM port. All you need to do is COM port programming in Visual Basic (search forum for more information)

this is my c program for microcontroller... any help or suggestion? it doestn have an error though

unsigned int volts_out;
unsigned int get_adc;
unsigned int x;
unsigned int norms;
unsigned int value;
unsigned int temp1;
unsigned int temp2;

void main()
{
 int exit = 1;
 Usart_Init(9600);
 ADCON0 = 0x80;
 ADCON1 = 0x80;
 ADCON0.ADON = 1; // Enables A/D Conversion
 TRISB = 0;
 PORTB = 0;
 RCSTA = 0x90;
 TXSTA = 0x24;
 Delay_ms(100);
 
 for(;;)
  {
    if(Usart_Data_Ready())
    {
      exit=1;
      PORTB=0;
      volts_out=Usart_Read();
      Delay_ms(100);
      norms = (( 2.5 *1023)/5);
      if(volts_out==norms)  // Within the 240-220 voltage range
      {
       x = volts_out * (5/1023);
        do
        {
          PORTB.F2=1;
          PORTB.F3=1;
          PORTB.F4=1;
          PORTB.F5=1;
          Delay_ms(100);
          if(Usart_Data_Ready())
          {
            exit=0;
          }
        } while(exit);
      }
      else if(volts_out>
norms) // Greater than 240 Volts
      {
        x = volts_out * (5/1023);
        do
        {
            PORTB.F2=1;
            PORTB.F3=0;
            PORTB.F4=0;
            PORTB.F5=1;
            Delay_ms(100);
            if(Usart_Data_Ready())
          {
            exit=0;
          }
        } while(exit);
      }
      else if(volts_out<norms)
      {
        x = volts_out * (5/1023);
        do
        {
          PORTB.F2=0;
          PORTB.F3=1;
          PORTB.F4=1;
          PORTB.F5=0;
          Delay_ms(100);
          if(Usart_Data_Ready())
          {
            exit=0;
          }
        }
        while(exit);
      }
      else if(volts_out==get_adc)
      {
        do
        {
          ADRESH=0;
          ADRESL=0;
          PORTB.F1=1;
          ADCON0.GO=1;
          Delay_ms(100);
          value=Adc_Read(0);
          Delay_ms(100);
          exit=0;
          temp1=ADRESH;
          temp2=ADRESL;
          Delay_ms(100);
          PORTB.F1=0;
          Delay_ms(100);
          Eeprom_Write(0,temp1);
          Delay_ms(20);
          Eeprom_Write(1,temp2);
          Delay_ms(20);
          Delay_ms(50);
          Usart_Write(Eeprom_Read(0));
          Delay_ms(20);
          Usart_Write(Eeprom_Read(1));
          Delay_ms(50);
          if(Usart_Data_Ready())
          {
            exit=0;
          }
        } while(exit);
      }
    }
    else
    {
      PORTB=0xff;
    }
  }
 
}

how i am going to display the read value in visual basic in digital form?

how actually you are displaying your ADC output and where?

also what do you mean by digital form? can you explain with example?

the x = .... is the one i will be calling in the visual basic...
i mean decimal value, sorry...

consider you have value=56 in microcontroller...now convert decimal to a string. and send seriially to vb.
it that wat you want

consider you have value=56 in microcontroller...now convert decimal to a string. and send seriially to vb.
it that wat you want

abbas1707

yup...

this is how i am going to convert

2.5v is the output read from a certain load then i'll convert it to decimal like this:

norms = (( 2.5 *1023)/5);

then ill have this declaration:

if (volts_out==norms)

//ill convert the decimal to a voltage value

x = (volts_out * (5))/1023 // this is the voltage that ill be calling to the visual basic program, am i right?

in vb

the value of x will be multiply to the ratio of the transformer like this

y = (x*220)/5

so y is the final value that i will like to be display in vb...

so is it ok?

Do you mean something like this:

yup but the voltage vill be converted to 220v from 8.7 for example. so insted of 8.7v in display it will now display 220V