RA3 won't get a high level.

[mister_e]

maybe because your Pauseus 244 is way too high? try to remove it.

[selbstdual]

This is right. It should be 40.

But.

I found out that the circuitry itself acts as a huge capacitor compared to this one.

I replaced it with 58 pF and threw away my calculations. Now it's time
to experiment....

I am using it ratiometrically but the same value doesn't seem to exist two times.

Wert:
	ADCWert = 0
	Trisa.3 = 0
	High Porta.3

	;Pauseus 800
	
	
	Trisa.3 = 1			
	WHILE Porta.3 = 1
		ADCWert = ADCWert + 1
	WEND
	Trisa.3 = 0
	Low Porta.3 ;To make UC = Vss
	Pauseus 100 ;To make UC = Vss
	RETURN

Somehow the capacitor has to have time to charge, having a too high value for Pauseus doesn't affect the measurement, it makes sure that the cap is surely charged. But here I cannot know when it's surely charged, but this must be more than zero.

[selbstdual]

I did some testing. This is the result: Max = maximum value of the resistor, InB = In Between. Pause = Pause to load the cap.

		Max	InB	Min	Min	InB	Max
Pause 3		46336	54273	16388	8965	48132	30980
Pauseus 5	39433	54025	11274	64777	11529	27145

It should be in the form of x² or -x². But both show strange behaviour.

Do you have an idea ?