Conversion of ADC value in Deciaml number to display on the lcd with PIC16F876A

[jean12]

Hello,there I would like anyone who can help me to convert the adc value into decimal number to display on the lcd.

I am measuring a voltage of 0V-30V but I am not able to printout the real value which I measured on the input AN0 of the PIC;Please help by proving the theories for digital to decimal conversion for displaying on the LCD.

Here is my complete project.The project is that called DVMLCD876A.Zip.

Please help

Thanks.

 

[Jinzpaul4u]

Hi Jean12,

I am measuring a voltage of 0V-30V???

How do you measure 30V in PIC GPIO's.. I think GPIO's only capable upto 5V..are you using any voltage divider there?

Best regards,

 

[Venkadesh_M]

you have to divide the maximum voltage into 5V with a voltage divider before giving it to the pic...

 

[wp100]

Hi,

Your 0 -5v adc result is in 1024 steps, so to represent 0 -30v you must divided the 10 bit adc result by 34.13
You then use an ascii converter routine to convert that value to ascii characters suitable for displaying on the lcd.

 

[jayanth.devarayanadurga]

I have answered your question here. https://www.edaboard.com/threads/297938/

See attached image. The only problem I see in Proteus simulation is that it shows logic contentions on RC4 to RC7 even though TRISC is configured as output pins. Maybe it is a bug of CCS C as I have used Proteus PIC16F876A part for other projects there is no problem with Proteus model.