In this post we’ll study two simple externally triggered timer circuits for two different application needs, the ideas were requested by Mr. Alan and Ms.Stevanie Circuit Request#1 I only wish I understood electronics as you do. Would you please help me with a simple timer circuit which would be adjustable for up to 30 seconds […]
Timer and Delay Relay
Water Saving Irrigation Circuit
In this article I have explained a simple water saving irrigation system circuit idea which can be used for implementing an efficient water management and control in farms and irrigation systems. The idea was requested by Mr. Ajinkya Sonwane, Mr. Akshay Kokane and Mr. Kunal Raut, studying in AISSMS IOIT College of Engineering. Circuit Objective […]
Timer Circuits with Auto Pause and Memory During Power Failures
In this post we try to investigate a couple of innovative solutions which could be used for pausing the counting process of a timer IC during power failures, and also restart the process when mains is restored, ensuring a continuous functioning of the timer without errors. The idea was requested by Mr. Arun Dev. Technical […]
Programmable Diesel Generator Timer Circuit
In this post I have explained a simple yet accurate programmable diesel generator timer circuit which can be used for achieving discretely programmable ON/OFF timing sequence for the connected diesel generator set. The idea was requested by Mr. Raj Kumar Mukherji. Technical Specifications Happy new year and hope you are fine. There is a request […]
3 Stage Timer Circuit for Industrial Camshaft
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 […]
How to Make a Classroom Debate Timer Circuit
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 […]





