DTMF is an abbreviation of Dual ToneMultiple Frequency. When you press a button in the telephone set keypad, aconnection is made that generates a resultant signal of two tones at the same time. These two tones are takenfrom a row frequency and a column frequency. Theresultant frequency signal is called “Dual ToneMultiple Frequency“. These tones are identical and […]
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All Types of USB Pinout Diagrames Universal Serial Bus connectors. These USB connectors let you attach mice, printers and other accessories to your computer quickly and easily. The operating system supports USB as well, so the installation of the device drivers is quick and easy, too. Compared to other ways of connecting devices to your computer (including parallel ports, serial ports and special cards
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Description This is a Dot Matrix Scrolling Sign. A Dot Matrix Display has an 5×7 led matrix with 5 columns and 7 rows. The display is controlled by the AVR microcontroller. The rows are controlled by PORTB of the microcontroller, while PORTD puts the data on the columns to make the characters. The Dot matrix
Dot Matrix Scrolling Mesage using AVR microcontroller Read More »
“iPad mini is every inch an iPad. With its gorgeous 7.9-inch display, iPad mini features the same number of pixels as the original iPad and iPad 2, so you can run more than 275,000 apps designed specifically for iPad.” this is what Philip Schiller, Apple’s senior vice president of Worldwide Marketing, had to say on the launch of the iPad mini last week
Tearing down the Apple iPad mini Read More »
Android Pi? Here’s a poll that has been running on Gadget Master’s sister-blog, Eyes On Android – The union of Raspberry Pi and Android It was spurred by the news that the Raspberry Pi platform is getting a doubling of RAM , to 512MB, with the suggestion that this will enable it to accommodate Android 4.0 (Ice Cream Sandwich), and take it out into the mobile space..
Poll: Android Pi – Your thoughts? Read More »
Hi friends, here is my experiment with i2c bus for interfacing serial EEPROM (24C256) and RTC (DS1307) using AVR microcontroller ATmega128. The circuit is also provided with an RS232 port for connecting with PC to send commands for reading/writing EEPROM or setting date/time in RTC (Click on images to enlarge them). Communication with PC is
Interfacing RTC & serial EEPROM using i2c bus, with ATmega128 uC Read More »
A content management system (CMS) is a software system that provides website authoring, collaboration, and administration tools designed to allow users with little knowledge of web programming languages or markup languages to create and manage website content with relative ease. A robust WCMS provides the foundation for collaboration, offering users the ability to manage documents
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There are plenty of wireless streaming options out there these days, but looking at the latest wave of offerings from Yamaha and Denon, it seems that Apple’s AirPlay protocol is the one that looms largest in the minds of major manufacturers. Both ranges of receivers offer an impressive degree of functionality and connectivity at reasonable
Yet another Portal-related instructable , but Different ! This one shows you how to : 1)Build a very cheap device that plays an 8-bit version of Still Alive from Portal 2)On the same hardware , but with a different chip , play the “radio tune” Here are both projects , in the same video (I
Portal "Still Alive" on AVR microcontrollers Read More »
What is LED: LED is a combination of 3 letters, and is an abbreviation of “Light Emitting Diode”. Led is an electrical component which emits light when electricity is passed through its terminals. We can divide Simple LED in 4 major parts 1)LED Semiconductor Substrate / Filament Top portion of the led which glows by
