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Newly Updated Circuit Projects:

How to Interface Cellphone Display with Arduino

Last Updated on May 14, 2026 by Swagatam Leave a Comment

hello2Bworldddd

In this post we will be learning how to interface Nokia 5110 display with arduino microcontroller and how to display some text, we will also be constructing a simple digital clock and finally we will be exploring graphical capabilities of the Nokia 5110 display. Nokia was the most popular mobile phone brand across the globe […]

Filed Under: Arduino Projects Tagged With: Arduino, Cellphone, Display, Interface

Make this Simple Weather Station Project for Homes and Offices

Last Updated on May 14, 2026 by Swagatam 6 Comments

In this post I will show how to construct an interesting Arduino based mini weather station project, which can show you ambient temperature, humidity, pressure, air quality and much more data from your surroundings, which can be used to predict weather from home. If you are interested in meteorology this project might come in handy […]

Filed Under: Arduino Projects, Sensors and Detectors Tagged With: Homes, Offices, Project, Simple, Station, Weather

Arduino Frequency Meter Using 16 x 2 Display

Last Updated on May 14, 2026 by Swagatam 4 Comments

arduinodisplayconnection

In this article I will show how to construct a digital frequency meter using Arduino whose readings will be showcased on a 16 x 2 LCD display and will have a measuring range from 35 Hz to 1MHz. Introduction Being electronics enthusiast, we all would have come across a point where we need to measure […]

Filed Under: Arduino Projects, Meters and Testers Tagged With: 16x2, Arduino, Display, Frequency, Meter

Arduino Pure Sine Wave Inverter Circuit with Full Program Code

Last Updated on May 14, 2026 by Swagatam 648 Comments

arduino

This article explains a simple pure sine wave inverter circuit using Arduino, which could be upgraded to achieve any desired power output as per the user’s preference. Circuit Operation In the last article I have explained how to generate sine wave pulse width modulation or SPWM though Arduino, we are going to use the same […]

Filed Under: Arduino Projects, Inverter Circuits Tagged With: Arduino, Full, Inverter, Pure, Sine, Wave

Arduino SPWM Generator Circuit – Code Details and Diagram

Last Updated on May 14, 2026 by Swagatam 74 Comments

waveform 2

In this post I have explained how to generate sine wave pulse-width-modulation or SPWM through Arduino, which can be used for making a pure sine wave inverter circuit or similar gadgets. The Arduino code is developed by me, and it is my first Arduino code, …and it looks pretty good 🙂 What is SPWM I […]

Filed Under: Arduino Projects Tagged With: Arduino, Code, Details, Generator, SPWM

Arduino Tachometer Circuit for Precise Readings

Last Updated on May 14, 2026 by Swagatam 4 Comments

A tachometer is a device that measures the RPM or angular velocity of a rotating body. It differs from speedometer and odometer as these devices deal with linear or tangential velocity of the body while tachometer a.k.a. “tach” deals with more fundamental the RPM. Introduction Tachometer is composed of a counter and a timer both […]

Filed Under: Arduino Projects, Meters and Testers Tagged With: Arduino, Precise, Readings, Tachometer

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