can anyone give me a circuit design for reading pH value using pic16f877a or atmega8 ....i need an input voltage range of 0-5v...0v corresponding to 0pH and 2.5v for 7pH and 5V for 14pH....or anyother circuit for reading pH value that had been tested by anyone??
thanks everyone for ur help...got it finally working...ur circuit really worked..wp100....and dr was only one mistake in that circuit....the -5 and +5 volt for tl084 was wrong...
thanks everyone for ur help...got it finally working...ur circuit really worked..wp100....and dr was only one mistake in that circuit....the -5 and +5 volt for tl084 was wrong...