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Voltmeter

How to Connect Digital Ammeter, Voltmeter Modules M4430, M3430

Last Updated on February 18, 2025 by Swagatam Leave a Comment

In this post I will be talking about the Chinese M4430 digital ammeter, voltmeter module which is a really neat, compact digital meter that you can mount on a panel. Whats great about it is that it is designed to measure and show us both the DC voltage and the current at the same time. […]

Filed Under: Meters and Testers Tagged With: Ammeter, Connect, Digital, M4430, Modules, Voltmeter

Transformerless AC Voltmeter Circuit Using Arduino

Last Updated on December 5, 2024 by Swagatam 13 Comments

100k2watt

In this article I have explained how to make a transformerless AC voltmeter using Arduino. Making an analog voltmeter is not an easy task as to build one you must have good knowledge of physical quantities like torque, speed; which can be very difficult when it comes to their practical applications. By Ankit Negi But […]

Filed Under: Arduino Projects, Meters and Testers Tagged With: AC, Arduino, Transformerless, Voltmeter

Arduino based DC Voltmeter Circuit – Construction Details and Testing

Last Updated on January 1, 2019 by Swagatam 10 Comments

LCD bb

In this post, I will show how to construct a DC voltmeter using Arduino where the readings are displayed in 16×2 LCD.     The proposed voltmeter design can read up to 30V with tolerance of +/- 0.5 volt. We are going to see how this setup functions and explore other possibilities we can accomplish […]

Filed Under: Meters and Testers Tagged With: Arduino, Based, Construction, DC, Details, Voltmeter

Digital Voltmeter Circuit Using IC L7107

Last Updated on August 28, 2019 by Swagatam 75 Comments

digital panel voltmeter circuit

In this post I have explained a very simple digital panel type voltmeter circuit using a single IC L7107 and a few other ordinary components. The circuit is able to measure voltages right up to 2000 AC/DC V. About the IC L7107 Making this simple digital panel voltmeter circuit is particularly easy due to the availability […]

Filed Under: Meters and Testers Tagged With: Digital, L7107, Voltmeter

How to Make a Digital Voltmeter, Ammeter Module Circuits

Last Updated on July 8, 2019 by Swagatam 29 Comments

2

In this article I have explained how to build a digital voltmeter and a digital ammeter combined circuit module for measuring DC volts and current through different ranges, digitally. Introduction Electrical parameters like voltage and current are inherently associated with electronics and with electronic engineers. Any electronic circuit would be just incomplete without appropriate supply […]

Filed Under: Meters and Testers Tagged With: Ammeter, Circuits, Digital, Module, Voltmeter

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