In this post we will learn how to build a few interesting LED circuits, and also learn how to connect LEDs correctly in a circuit. LED stands for Light Emitting […]
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Visitor Counter Circuit Using IC 555 and IC 4026
A visitor counter is a machine that counts the of number people who visited a place. Visitor counters are usually installed at the entrance and exit points of commercial buildings […]
Letter Box Open Indicator Circuit
In this post we learn how to build a letter box open indicator circuit, which indicates through an LED if the letter box had been opened either by the postman, […]
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 […]
Charging a Deep Discharged Battery
In the following post we discuss an advanced battery charger circuit that can be used for charging a deep discharged lead acid battery in a stage wise manner. Figure 1 […]
Types of Solar Panels, Solar Inverters Explained
In this post we will discuss the main types of solar panels available in the market, and also discuss the different types solar inverters which are specifically compatible with these […]