Posts by Fariha Zahid

This is a very interesting circuit of an Automatic Electronic Weekly Calendar with Alarm. This circuit will show a visual indication of each…

In this tutorial, we are going to make a Dark Activated Timer switch. It will switch on the relay for a preset time duration during darkness…

In this tutorial, we are going to make a project on the Light-Activated Timer switch circuit. It can activate the timer only one time for a…

Light sensor circuits are used to detect the presence of light or darkness around them. They are mostly used to control electrical loads suc…

In this project, we are going to make an Automatic Night Lamp with TRIAC. TRIAC is a three-terminal electronic component that is also known…

In this tutorial, we are going to show you how to make a Time delay relay circuit using a 555 timer IC. This circuit is able to trigger the…

In this tutorial, we are going to make a Doorknock sensing doorbell that activates when someone knocks on your door. This circuit is quite s…

In this project, we are going to make one of the most interesting DIY circuits which is the Morning Alarm or Light Activated Alarm Circuit…

This is a tutorial on a Light-activated LED using SCR. This circuit is very easy to build, it will turn on the LED when it senses light on t…

This is a tutorial of how to connect/wire LEDs. Most of you out there just have started studying electronics and there are a lot of projects…

A solid-state relay is designed for the purpose of switching a DC or AC load, some of them are capable of switching both AC and DC loads. Th…

In this tutorial, we are going to demonstrate a LED sequencer/ chaser using NE555 & CD4017. The purpose of this circuit is to turn the LEDs…

This is one of the simplest DIY projects of an Automatic Lamp circuit/Dark Activated 230V Lamp Circuit. It is only using five components and…