Abstract

• In the present work, data acquisition system is designed to measure frequency, inductance, current, digital logic condition and circuit continuity. The system is constructed using an Arduino mega 2560 development board, resistors, capacitors, comparator, and various sensors. The respective sensors sensed physical phenomenon and sent electrical signal to Arduino ATmega2560 microcontroller. The measuring results data are displayed on the LCD, stored in micro SD card and logged in excel sheet directly using the parallax data acquisition (PLX-DAQ) as the same time. The system is innovatively designed to measure five different types of physical quantities.