Measuring voltage

[champion]

This may seem like an elementry question for most of you, but I am new and I have not been able to find a definitive answer by using the search function. I am simply looking for a way to measure voltage 0V - 5V using a PIC16F84A and display it on an LCD. I can display things on the LCD, but when I try and display an input voltage on one of the pins I get either a high(1) or a low(0), not a specific voltage. Is there a way to do this with just the PIC??? Thanks in advance.

[rhino]

Without A/D you can try POT or RCTIME commands, but your better off going with a pic with A/D functionality. Probably cheaper than your PIC16F84A! Another option is an external A/D chip.

[champion]

Without A/D you can try POT or RCTIME commands, but your better off going with a pic with A/D functionality. Probably cheaper than your PIC16F84A! Another option is an external A/D chip.

I have been using the pot command, but it is very erratic. BTW, I'm only using the 16F84A because I had it laying around from my mechatronics class in college. Thanks for all the help.

[mister_e]

i have those laying on my Pin Board

It's also a good Staple replacement!

[Dave]

champion, what are the values you are using for the pot as well as the capacitor when using the POT circuit?

Dave Purola,
N8NTA

[champion]

I am using a 10k pot with a 0.1uF cap. Its a poly capacitor too. And a 5V regulator.