Tag Archives: dc voltmeter

Four Digit 7-Segment Display Interfacing with Arduino

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7-segment displays are most popular in panel meters, It can show direct numerical value on display, It’s cost is low and display size bigger than LCD’s. Lets interface four digit display, most of the time four digits are enough to display data.

Problem Statement

We are making a Voltmeter using four digit 7-segment display, for this IC 74HC595 shift register is used instead of 7448 decoder, use of shift register gives few advantages such as you can display sign, few alphabets and control decimal point location. Continue reading Four Digit 7-Segment Display Interfacing with Arduino →

ICL7107 Digital Voltmeter

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The circuit given here is of digital voltmeter with LED 7-segment display using the ICL7107. It measures voltage from 0.00V to 99.9V. ICL7107 is a 3 1/2 digit A/D converters with LED 7-Segment Driver.

The Intersil ICL7106 and ICL7107 are high performance, low power, 31/2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive; the ICL7107 will directly drive an instrument size light emitting diode (LED) display. Continue reading ICL7107 Digital Voltmeter →

Digital Voltmeter using Arduino

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Introduction

            7-segment displays are most popular in panel meters, It can show direct numerical value on display, It’s cost is low and display size bigger than LCD’s. Lets interface four digit display, most of the time four digits are enough to display data. Continue reading Digital Voltmeter using Arduino →

DC Voltage Measurement using Arduino

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Definition

Voltage, also called electromotive force, is a quantitative expression of the potential difference in charge between two points in an electrical field. It is measured in Volts.

What you will learn?

1. How to measure DC voltage?
2. How to make DC voltmeter using Arduino?
3. Milivolt measurement technique
4. How to calculate voltage divider circuit resistors?

Continue reading DC Voltage Measurement using Arduino →