Interesting result on a 16F688 with ADC and LCD

[pedja089]

Add 1K pull up resistor.

[Dave]

Hey Chris, Read the data sheet.... RA4 is open collector only when used as output..... Read the data sheet... It's your friend....

[HenrikOlsson]

Hi Dave,
That was actually my initial thought as well but what I did was what you suggest (but perhaps didn't do ?) and read the datasheet before posting - which resulted in me not posting that response ;-)
There's no mentioning of RA4 being open drain on the 16F688 as is the case on some other devices - at least not what I could find.

/Henrik.