In this post I have explained a simple relay changeover circuit which may be used for switching a couple of A/Cs or any similar load alternately in order to avoid misuse and save power. Technical Specifications Here is the situation: State: California. Facility: Church. The electric rate is greatly influenced by peak usage in any […]
Newly Updated Circuit Projects:
Greywater Purifier Desalination System
In this post I have explained a simple grey water purifier, desalination design arrangement which can be used for recycling greywater into pure usable distilled water completely free of cost through solar heat concentration. The idea was requested by Mr. Luis Gomes Machado Circuit Objectives and Requirements I wrote to you on a forum last […]
Customized Water Flow Controller with Timer Circuit
In this article I have explained a customized water flow controller circuit with timer.he idea was requested by Mr. Daljeet Singh Sokhey. Technical Specifications Right now I am working on a different project and would like your help. There are 2 inputs and both must remain high for a period of 30 seconds for the […]
Deep Soil Metal Detector Circuit – Ground Scanner
In this post I have explained a simple deep under soil metal detector circuit for evaluating hidden metals such as gold, iron, tin, brass etc by detecting change in the resistance of the relevant soil layers. Bigger physical objects which might be buried within the topsoil could be unveiled through a modification in the electrical […]
Digital Up/Down Volume Control Circuit
In this post I have explained a simple digital volume control circuit using the IC DS1668 which can be used in amplifiers and all audio equipment for achieving a push button press up/down volume control facility. What are Electronic Rheostats The DS1668 and DS1669 Dallastats are electronic rheostats or potentiometers. These devices present 64 possible […]
Wheel Rotation Detector Circuit
In this post I have explained a simple wheel rotation identifier or detector circuit which can be used for ensuring a continuous rotating movement of a concerned wheel through an LED, photodiode arrangement. The circuit was requested by nzb109. Technical Specifications I want to generate a trigger circuit to detect that a WHEEL is stationary. […]





