In this article I have explained a couple of circuits that will allow automatic watering of plants and flower pots, even while the owner of the house is away from home, and the house is locked for many days. The first method is through a sound activated system which detects the sound from a cellphone […]
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Ultrasonic Motion Detector Circuit
This ultrasonic motion detector circuit project picks up movement of any object including human beings from a distance of 4 to 7 meters away. As soon as the motion is detected, the output of the circuit illuminates a red LED indicating the presence of an obstacle or an intruder. However, using supplemental circuit stages connected […]
Battery Deep Discharge Protection Circuit
In this post I have explained how to build a battery deep discharge protection circuit which can be used for protecting any type of battery from over discharge through a connected load. Normally, we are mostly worried about battery getting over charged, and forget about a situation where the battery can get over discharged by […]
Types of Solar Panels, Solar Inverters Explained
In this article I have explained the main types of solar panels available in the market, and also discuss the different types solar inverters which are specifically compatible with these solar panels. Further in the article we will also discuss how the efficiency of a solar panel may be affected due to to bad weather, […]
Simple Diode Circuits Explained
In this post I have explained how to use rectifier diodes for building some practical and useful electronic circuits. A diode is the most basic semiconductor electronic component, which is built with a single pn semiconductor junction. It has only two terminals, which are referred to as the anode and the cathode. Diodes can be […]
IC 741 Power Supply Circuits
In this post I have explained how to make simple yet fully stabilized and regulated, variable power supply circuits using the IC 741 op amp. Three versions of the 741 power supplies are I have explained below: Simple Variable IC 741 Power Supply The first figure below exhibits a IC 741 based simple variable voltage […]