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Arduino

Blinking an LED with Delay – Arduino Basics

Last Updated on June 9, 2026 by Swagatam 4 Comments

arduino sketch

Here I have explained the bare minimum code for compiling an Arduino and also the method of blinking an LED using an Arduino board. Learning the Bare Basics Here we discus and try to understand the fundamental minimum code that one would need to compile an “Arduino Sketch” which consists the setup()method and the loop()method. […]

Filed Under: Arduino Projects Tagged With: Arduino, Basics, Blinking, Delay, LED

Arduino SPWM Generator Circuit – Code Details and Diagram

Last Updated on June 9, 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 Frequency Meter Using 16 x 2 Display

Last Updated on June 8, 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

Digital Capacitance Meter Circuit Using Arduino

Last Updated on June 8, 2026 by Swagatam 4 Comments

Testing Capacitor with Arduino

In this post I will show how to construct a digital capacitance meter circuit using Arduino which can measure capacitance of capacitors ranging from 1 microfarad to 4000 microfarad with reasonable accuracy. Introduction We measure value of the capacitors when the values written on the capacitor’s body is not legible, or to find the value […]

Filed Under: Arduino Projects, Meters and Testers Tagged With: Arduino, Capacitance, Digital, Meter

Making a Single Channel Oscilloscope using Arduino

Last Updated on June 8, 2026 by Swagatam 24 Comments

lcdconn

In this interesting post, we are going to make a simple single channel oscilloscope using Arduino and a personal computer, where the waveforms will be showcased on the PC’s display and frequency and time period of the input waves will be displayed on the 16 x 2 display.  Introduction Every electronics enthusiast once said “I […]

Filed Under: Arduino Projects, Meters and Testers Tagged With: Arduino, Channel, Making, Oscilloscope, Single

Arduino based DC Voltmeter Circuit – Construction Details and Testing

Last Updated on June 8, 2026 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 other than […]

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

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