A compact, low-cost digital voltmeter (DVM) built around the ATmega328 microcontroller. The system measures DC voltage (user-selectable range), displays the reading on an LCD or 7-seg display, and ...

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The circuits were designed using two A/D converters to create a voltmeter and ampermeter. The circuits are designed with the combination of CA3161E and CA3162E to imposing a complete 3-digit display ...

Abstract: This paper describes the investigation of the influence of harmonics in a signal that is measured by using an AC quantum voltmeter. Equations for parameters of the signal being measured, ...

This project measures the input voltage using an Arduino Uno and displays it on a 16x2 I2C LCD screen. It uses a simple voltage divider circuit to safely read voltages up to 12V. The Arduino reads an ...

Abstract: This article proposes a method for reducing the loading effects when a dc voltage or current is measured in a linear circuit with a digital multimeter (DMM). In the proposed method, the ...