Design of low cost portable DAQ unit for Microbial fuel cells

In this paper we have developed a low cost portable voltage measurement and data logging system so as to incorporate it applications where voltage measurement is essential and in which the measured value must be saved. This has been designed using an Arduino Mega board incorporating additional modules such as Liquid Crystal Display to display the output, a storage module, a real time clock to provide the date and time of each measurement. The validation of the accuracy of this system has been implemented using a regulated power supply and a multimeter. It was statistically analyzed proving to result in minimal error. Further, it was incorporated to acquire data of a Microbial Fuel Cell system to study its characteristics.