Posts by Kiran Saleem

In this tutorial, we are going to make a "Variable Timer Relay" using Arduino. Timers are used in many applications in our day-to-day life…

LEDs are becoming the first choice for automotive exterior lighting. However, the diodes and their drivers need to meet the relevant automot…

In this tutorial, we are going to make a "Non-Contact AC Voltage Detector Circuit". In a traditional voltage tester, we need to touch live w…

A regulated power supply converts unregulated AC (Alternating Current) to a constant DC (Direct Current). A regulated power supply is used t…

In this tutorial, we are going to make a "DC-DC Boost Converter using MC34063A IC". A DC-to-DC boost converter steps up voltage (while stepp…

Multivibrators are non-sinusoidal oscillators which are usually two-stage amplifiers with positive feedback. These circuits are made up of b…

In this tutorial, we are going to make a "230V AC Powered LED Circuit". A dedicated LED AC-powered circuit provides an accurate constant cur…

In this tutorial, we are going to make a "6V DC Transformerless Power Supply". Generally, electronic products have a step-down transformer…

A dual power supply is a regular direct current power supply. It can provide a positive as well as a negative voltage and ensures a stable p…

In this tutorial, we are going to make an "LED as a Light detector". Ever wonder what’s behind your smartphone and tablets that allow for au…

Some types of electronic equipment do not provide any indication that they are actually on when they are switched on. This situation can occ…

In this tutorial, we are going to make a "Soil Moisture Sensing Circuit". The soil moisture sensor is one kind of sensor used to gauge the v…

Multiple appliances have been developed to ease human efforts. And in the same run, numerous protective circuits are designed to ensure a lo…