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Timer

LED Timer Indicator Circuit for Board Games

Last Updated on May 21, 2026 by Swagatam 2 Comments

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In this article I have explained a simple LED indicator timer circuit which can be used with board games for indicating the elapsed time or the time consumed by the player to complete his or her turn. The idea was requested by Mr. Shane Robins. Technical Specifications Hope all is well with you. I am relatively new […]

Filed Under: Games and Sports Projects Tagged With: Board, Games, Indicator, LED, Timer

3 Stage Timer Circuit for Industrial Camshaft

Last Updated on July 6, 2019 by Swagatam Leave a Comment

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In this post I have explained a simple sequential timer designed for implementing a specified set of actions involving a 3 step relay activation which in turn is used for executing the desired mechanisms. The idea was requested by Mr. Ali.  Technical Specifications I look at your site occasionally and this time round I am […]

Filed Under: Timer and Delay Relay Tagged With: Camshaft, Industrial, Stage, Timer

Sequential Timer Circuit using Transistors

Last Updated on June 1, 2026 by Swagatam 23 Comments

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In this post I have explained to make a simple sequential timer generator circuit which can be used for getting a sequential triggering of a connected load, or can be simply used like a sequential LED bar graph effect generator, using only transistors. The idea was requested by Mr Babusan.  Technical Specifications Is it possible […]

Filed Under: Lamps and Lights Tagged With: Sequential, Timer, Transistors

How to Make a Classroom Debate Timer Circuit

Last Updated on July 6, 2019 by Swagatam 6 Comments

classroom debate timer

In this post I have explained how to make a simple classroom debate timer circuit which can be used to illuminate two sequentially toggling lamps to indicate the start and finish of the lecture time delivered by the respective members in the class. The idea was requested by Animale. Technical Specifications I’m trying to make […]

Filed Under: Timer and Delay Relay Tagged With: Classroom, Debate, Timer

Simple Pneumatic Timer Circuit

Last Updated on January 2, 2024 by Swagatam 20 Comments

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In this article I have explained a simple two step IC 555 timer circuit which can be used for sequentially operating any specified industrial mechanism system, in this application it’s used for operating a pressurized pneumatic ball throwing arm. The idea was requested by Mr. Ray Strong. Technical Specifications So glad I found this site, […]

Filed Under: Timer and Delay Relay Tagged With: Pneumatic, Simple, Timer

Delay based Motor Speed Controller Circuit – Timer Controlled

Last Updated on June 30, 2026 by Swagatam 38 Comments

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In this post I have explained a delay OFF adjustable motor controller circuit so that the motor can be assigned a fixed predetermined operating time, or delay OFF time. The idea was requested by Mr. Cribey  Technical Specifications I really like your website. It is very helpful for so many people. I am trying to […]

Filed Under: Motor Controller, Timer and Delay Relay Tagged With: Based, Controller, Delay, Motor, Speed, Timer

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