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Newly Updated Circuit Projects:

Darkness Triggered Car Safety Park Light Circuit

Last Updated on May 16, 2026 by Swagatam Leave a Comment

park2Blight

In this post I have explained a circuit concept for enabling cars with an add-on automatic safety park light which triggers during night and signals the position of the car and consequently prevents a mistaken collision or dashing by another vehicle. The design ensures minimum consumption and relatively higher brightness for the involved LED lights. […]

Filed Under: Automobile Electronics Tagged With: Darkness, Light, Park, Safety, Triggered

Flashing Red, Green Railway Signal Lamp Circuit

Last Updated on June 25, 2020 by Swagatam 18 Comments

railway2Bsafety2Blights

In this post I have explained how to make a simple railway signal lamp which can be used by the guards for providing a handheld signalling to the various trains with the many specified signalling modes. The idea was requested by Mr. Bala. Technical Specifications I need a project design for railway led signalling light . […]

Filed Under: Sensors and Detectors Tagged With: Flashing, Green, Lamp, Railway, Signal

Arduino Random RGB Light Generator Circuit

Last Updated on June 8, 2026 by Swagatam 1 Comment

The  article discusses a simple,Arduino red, green, blue LED light effect generator circuit in a random pattern. In one of the earlier posts we came across a similar RGB LED effect generator circuit using Arduino which was programmed to produce the effect in a flowing sequential manner, whereas here the set up can be expected […]

Filed Under: Arduino Projects, Lamps and Lights Tagged With: Arduino, Generator, Light, Random, RGB

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

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

Arduino RGB Flowing Sequential Light Circuit

Last Updated on June 8, 2026 by Swagatam Leave a Comment

rgb 3

In this post we are going to make a simple but useful circuit that can make an RGB LED glow in a nice flowing way. That is not just random blinking, but smooth sequential lighting of red, green, and blue one by one. This is done using Arduino, so you need to have some basic […]

Filed Under: Arduino Projects, Lamps and Lights Tagged With: Arduino, Flowing, Light, RGB, Sequential

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