Engineering

How buzzer works?

Piezo buzzer is an electronic transducer used for produce sounds. The buzzer had an outer case with two pins. Inside the buzzer it has piezo element, consists of a ceramic disc surrounded by metal disc. The working principle is, whenever an electric potential is applied across a piezoelectric material, a pressure variation is generated. These pressure variation, push and pull…

Continue Reading

Engineering

DIY – Mosquitoe Repellent using 555 timer?

Before designing the electronic mosquito repellent, we need to understand why mosquitoes bites humans. Only The female mosquito is the one that bites (males feed on flower nectar). She requires blood to produce eggs. After breeding female mosquitoes avoid male mosquitoes. Generally, male mosquitoes generates frequency in the range of 20KHz-40KHz. So, we are going to create this frequency sound manually to avoid…

Continue Reading

Engineering

How to create Mosquito Repellent using Arduino?

Before designing the electronic mosquito repellent, we need to understand why mosquitoes bites humans. Only The female mosquito is the one that bites (males feed on flower nectar). She requires blood to produce eggs. After breeding female mosquitoes avoid male mosquitoes. Generally, male mosquitoes generates frequency in the range of 20KHz-40KHz. So, we are going to create this frequency sound manually to…

Continue Reading

Engineering

How QR scanner works?

QR scanners are used for scanning QR codes which are square filled with encrypted data. The code system was invented in 1994. it can able to scan two types of QR codes Linear: Linear barcode typically holds any type of text information 2D barcode :  2D barcode is more complex information such as URLs, images and advertisement. The QR scanner consists of…

Continue Reading

Computer, Engineering

What is SRAM?

SRAM, It is a memory element used for storing the data. It’s a Vilatile Memory. When power goes down, it will loss it’s memory. Before get to know about SRAM, we need to know what is RAM. Two types of RAMs are available Dymamic RAM Static RAM Computer requires some memory for perform operations. All the memories of the computer…

Continue Reading

Computer, Engineering

What is FGPA?

FPGA (Field Programmable Gate Array ), is a semiconductor curcuit based on the configurable logic blocks. After manufacturing, the IC can be  programmed on the basis of application requirements. The IC is integrated with Logic gates and Flip-flops The hardware configuration of the IC is done with,  Hardware Description Language. How to reprogram FPGA?  FPGA based on domain type SRAM,…

Continue Reading

Computer, Engineering

How does Hard Disks work?

Hard disk   When you save data or install programs on your computer, the information is typically written to your hard disk. The hard disk is a spindle of magnetic disks, called platters, that record and store information. Because the data is stored magnetically, information recorded to the hard disk remains intact after you turn your computer off. This is…

Continue Reading

Computer, Engineering, Tech News

How to burn CD/DVDs

What is Burn ? Burn is a colloquial term meaning to write content to a CD , DVD , or other recordable disc. DVD and CD drives with recording capabilities (sometimes called DVD or CD burner s) etch data onto the disks with a laser . CD-Recordable and CD-Rewritable are the two most common types of drives that can write CDs, either once (in…

Continue Reading

Computer, Engineering

What is UEFI Firmware?

    Unified Extensible Firmware Interface (UEFI) is a specification for a software program that connects a computer’s firmware to its operating system (OS). UEFI is expected to eventually replace BIOS. This BIOS have two types one is legacy BIOS and another one is UEFI. UEFI is a over come of legacy BIOS. Like BIOS, UEFI is installed at the time of manufacturing and…

Continue Reading

Computer, Engineering

What is Search Engine Optimization?

Search Engine optimisation is a process of increasing traffic to websites that brings the more visibility in search Engine’s results. When user search something on the search engine they are probably choose first five results. It’s your efforts to bring your website to the highest optimisation level. Search optimisation is good technique for increasing web traffic and give good user…

Continue Reading

Engineering, Tech News

Intel core processor

Intel Core is a line of mid-to-high end consumer, workstation, and enthusiast central processing units (CPU) marketed by Intel Corporation. These processors displaced the existing mid-to-high end Pentium processors of the time, moving the Pentium to the entry level, and bumping the Celeron series of processors to low end. Identical or more capable versions of Core processors are also sold as Xeon processors for the server and workstation markets. As of…

Continue Reading

Computer, Engineering, Tech News

How touch screen works

In 10 years back, we are have only Nokia1100,3315, Nokia 6600, music and camera phones. These are button phones. More than people are use only landline. Then touch screen mobiles are alive in markets. IPhone is the first full touch sensor mobile. This touch sensor was used in ATM machines, ATM card machine and Aeroplane tv. There is in two…

Continue Reading