PIC16F688 voltage and current display

[macobt]

Hi to all
I want to built it this voltage and current display but on schematic are not shown pins conected to lcd display,I have wrote to author he tell me too look in source code for pins conections,I dont know to read source codes
Please help me to solve this problem.
Here is link to web site:**broken link removed**
And pictures with schematic.
Regards macobt

 

[ericgibbs]

Hi to all
I want to built it this voltage and current display but on schematic are not shown pins conected to lcd display,I have wrote to author he tell me too look in source code for pins conections,I dont know to read source codes
Please help me to solve this problem.
Here is link to web site:**broken link removed**
And pictures with schematic.
Regards macobt

hi
This is what the designer means, extract from the C code.
If you have a problem ask.



EDIT:
Bit more info.
View attachment lcd1[1].pdf

 

[macobt]

Thanks but?

Thanks but I need all pins from the PIC16F688 with names,that is beter for me to understand and to wiring to lcd.
I know that I ask stupid qwestions
Here is a picture.

 

[ericgibbs]

Thanks but I need all pins from the PIC16F688 with names,that is beter for me to understand and to wiring to lcd.
I know that I ask stupid qwestions
Here is a picture.

hi,
Attached is a clip from the 16F688 datasheet, it shows the pin names.

If you compare it with the diagrams I posted earlier you will see that the pin names correspond to the clip.

You should download the free datasheet for the 16F688 from Microchip Technology Inc. is a Leading Provider of Microcontroller and Analog Semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide.



Do you follow OK.?

 

[macobt]

Thanks...

Thanks a lot,now I know the pins in the source code RC5,RC4,RC3,RC2,RC1,RC0 are conected to lcd and one pin for the contrast.
Thanks for help ericgibbs
Regards macobt

 

[ericgibbs]

Thanks a lot,now I know the pins in the source code RC5,RC4,RC3,RC2,RC1,RC0 are conected to lcd and one pin for the contrast.
Thanks for help ericgibbs
Regards macobt

hi,
The 'contrast' should be a 10k pot, connected across +5V and 0V, with the pot wiper to the contrast pin.

Adjust the pot for best contrast on the LCD.

EDIT: dont forget the PORTA.5 pin to the LCD enable pin

 

[sahu]

Thanks a lot,now I know the pins in the source code RC5,RC4,RC3,RC2,RC1,RC0 are conected to lcd and one pin for the contrast.
Thanks for help ericgibbs
Regards macobt

can u provied hex code ?...............

 

[ericgibbs]

can u provied hex code ?...............

hi,
I dont have the hex code but you could download from microchip their free C compiler and compile the designer source code.