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Color Detector Circuit with Arduino Code

Last Updated on November 7, 2025 by Swagatam Leave a Comment

schematic 1

In this post I will show how to construct a circuit which can detect color and trigger respective assigned relays. This project is accomplished using TCS3200 color sensor and Arduino board. Color Sensing by TCS3200 If you haven’t read the previous article, please go through it where we have discussed the basics of color sensing […]

Filed Under: Arduino Projects, Sensors and Detectors Tagged With: Arduino, Code, Color, Detector

Arduino 3 Phase Inverter Circuit with Code

Last Updated on June 14, 2025 by Swagatam 169 Comments

driver

An Arduino three phase inverter is a circuit which produces a 3 phase AC output through a programmed Arduino based oscillator. In this post I have explained how to make a simple microprocessor Arduino based 3 phase inverter circuit which could be upgraded as per user preference for operating a given 3 phase load. We […]

Filed Under: Grid and 3-Phase, Inverter Circuits Tagged With: Arduino, Code, Inverter, Phase

Arduino SPWM Generator Circuit – Code Details and Diagram

Last Updated on May 24, 2025 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

Simple Ignition Code Lock Circuit for Automobile Protection

Last Updated on January 2, 2024 by Swagatam 15 Comments

codeswitch 1

This extremely simple code lock switch circuit can be used for locking a vehicle’s ignition by typing a hidden code over the given micro switch keypads. So now you can use this simple code lock ignition circuit for probably securing your car from a possible theft. Alternatively the circuit may be used for any application […]

Filed Under: Automobile Electronics Tagged With: Automobile, Code, Ignition, Lock, Protection, Simple

Morse Code Practice Oscillator Circuits

Last Updated on September 21, 2023 by Swagatam 6 Comments

morse code oscillator circuit using IC 4093

In this article we will explore 3 different Morse code practice oscillator circuits, for generating exact replication of Morse code signals in the form of dots and dashes. Contributed By: Anil Patil What is Morse Code Morse code is a legacy method of message encoding that uses rhythm and impulses to transmit telegraphic communication. Morse […]

Filed Under: Oscillator Circuits Tagged With: Circuits, Code, Morse, Oscillator, Practice

Morse Code Flasher Circuit for Lighthouse

Last Updated on August 2, 2020 by Swagatam 9 Comments

MORSECODETIMERCIRCUIT

In this post I have explained a simple morse code lamp flasher circuit which may be used for model lighthouse signalling applications. The idea was requested by Mr. Frank Gardner.  Technical Specifications I am in need of a unique flashing circuit. I have built several exact scale models of the light house at Yerba Buena […]

Filed Under: Sensors and Detectors Tagged With: Code, Flasher, Lighthouse, Morse

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