In this post we are going to build a drag race timer circuit using a 7 segment display and commonly available discrete components which can measure the time taken for […]
Cellphone Controlled Plant Watering Circuit
In this post we will discuss a couple of circuits that will allow automatic watering of plants and flower pots, even while the owner of the house is away from […]
Automatic School Bell System Using IC 4017 and IC 555
In this post we are going to construct an automatic school bell system using the IC 4017 which can be programmed to activate an AC bell in regular intervals (between […]
Arduino 2-Step Programmable Timer Circuit
In this article we learn how to make a simple 2-step Arduino programmable timer circuit, which can be used to switch an electrical load ON/OFF with independently adjustable ON and […]
Simple Digital Timer Circuit with 2 Digit Display
This simple digital timer circuit can be used to obtain timing output through selectable ranges, which can be set from 0 to 99 second, with 1 second interval, 0 to […]
Simple Kitchen Timer Circuit – Egg Timer
A kitchen timer is a useful gadget which produces an alarm sound after a predetermined delay, as set by the user for specific time based food recipes that must be […]