need a pic basic program

[andywpg]

I think you've explained it quite clearly.

First, you need to go to the Microchip site and download the datasheet for the specific chip you're using. Read through it noting what registers if any need to be set for the chip to work.

I'd then recommend you search this forum for simple programs to blink and LED on pin b.1 to ensure you're communicating with the chip.

Then, search this forum for PWM, Pulse Width Modulation, and use those posts to write your own code.

Once that's done post your code and your schematic along with chip number, PBP version and most everyone here will help you to "fix" your errors.

I look forward to hearing from you.

Isn't it funny how people seem to think we all having NOTHING to do of our own, but are just waiting to create their 'dream device' for them for nothing. Heck, I have enough problems creating my own, let alone someone else's!

[Demon]

Just out of curiosity, can't this be done using discrete chips alone?

if input increases then output volt which is 5 volt dc should decrease with 1:1 relation but reverse order

I've only dabbled with gates, transistors and amplifiers; but can't they do this very well?

Robert

[Charlie]

Absolutely, Robert. But that would not be the point of the school project, would it?