DefinePK

Abstract

In this paper, the design and implementation of a low cost calibrated digital voltmeter based on Arduino UNO is presented. The proposed design uses the internal 10-bit Analog to Digital converter of Arduino UNO. Simple linear regression model is applied for the calibration of voltmeter. However, voltage divider circuitry is being used for the enhancement of input voltage range. This technique can be implemented to any other system where calibrated voltage measurement is required through Arduino UNO interface.