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Arduino Projects

Control a Relay ON OFF Using SIM Card, Mobile Phone, and Arduino

Last Updated on May 25, 2026 by Swagatam 6 Comments

This project I will explain how we can control a relay remotely using a SIM card and a normal mobile phone, with help of Arduino and a GSM module. The relay can be turned ON or OFF by sending an SMS or by making a phone call to the SIM card placed inside the GSM […]

Filed Under: Arduino Projects, Automation Projects, Wireless Circuits Tagged With: Card, Control, OFF, ON, Relay, SIM

Mp3 Player Using DF Player – Full Design Details

Last Updated on May 25, 2026 by Swagatam 30 Comments

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In this post I will show how to construct an Mp3 player using arduino and DFPlayer. The proposed article has two Mp3 player designs, one with push button control and another one with IR remote control. We will also take a look at DFPlayer (Mp3 player module) and its specifications. We all love music, we […]

Filed Under: Arduino Projects, Audio and Amplifier Projects Tagged With: Design, Details, DF, Full, Mp3, Player

Making an Automatic Stopwatch for Runners, Athletes and Sportpersons

Last Updated on May 21, 2026 by Swagatam Leave a Comment

DSC0410 1

In this post I will show how to construct a stopwatch which automatically starts timer when the runner begins to run and the timer stops when the runner reaches the end. The elapsed time between starting and ending point is displayed on a 16 x 2 LCD. First let’s begin by learning how to configure […]

Filed Under: Arduino Projects, Games and Sports Projects Tagged With: Athletes, Automatic, Making, Runners, Sportpersons, Stopwatch

Learning Basic Arduino Programming – Tutorial for the Newcomers

Last Updated on May 20, 2026 by Swagatam Leave a Comment

arduino led

In this tutorial I have explained how to do basic Arduino programming through example codes and sample programs. This tutorial can be an extremely valuable course for all the newcomers who wish to grasp the basics through easy, understandable language. Introduction According to wikipedia a microcontroller is equivalent to a mini computer built inside a […]

Filed Under: Arduino Projects, Electronics Theory Tagged With: Arduino, Basic, Learning, Newcomers, Programming, Tutorial

How To Use And Program ATmega Microcontrollers From Scratch Without Arduino

Last Updated on May 20, 2026 by Swagatam 2 Comments

ATmega microcontrollers, they are coming from the AVR family which Atmel developed long back, and later this Atmel company was taken by Microchip. So now officially Microchip owns it but still people say Atmel AVR only. These MCUs became very popular slowly because they are easy to understand, quite affordable, stable in long run and […]

Filed Under: Arduino Projects, Electronics Theory Tagged With: Arduino, ATmega, Microcontrollers, Program, Scratch, without

Arduino LCD KeyPad Shield (SKU: DFR0009) Datasheet

Last Updated on May 18, 2026 by Swagatam Leave a Comment

pindetails

The write up explains the pinout and working details of the LCD module “Arduino LCD KeyPad Shield (SKU: DFR0009)” which is specifically manufactured for offering a quick plug-in compatibility for all Arduino based applications which may require displaying a particular parameter in digits, such as temperature, speed, time, weight etc. Arduino LCD KeyPad Shield (SKU: […]

Filed Under: Arduino Projects, Datasheets and Components Tagged With: Arduino, DFR0009, KeyPad, LCD, Shield, SKU

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