EMBEDDED pH DATA ACQUISITION AND LOGGING

The Accurate measurement and analysis of pH data is necessary for a multitude of applicationsranging from agriculture sector to clinical laboratories. Preferably an inexpensive hand-held unit isneeded for these applications. This paper presents the sensor data acquisition and data logging systemincluding the details of its construction, capabilities and applications. PIC microcontroller has in-builtADC, which samples the output pH level measured by a pH meter.