About: Ibrar Ayyub

Speech to Data To convert speech to on-screen text or a computer command, a computer has to go through several complex steps. When you speak, you create vibrations in the air. The analog-to-digital converter (ADC) translates this analog wave into digital data that the computer can understand. To do this, it samples, or digitizes, the […]

Netflix Web Site and Envelope The two most visible parts of the Netflix enterprise are the red mailing envelopes and the Web site. The patented envelope is essentially an ordinary mailing envelope with an extra long, removable flap. This extra length of paper is what lets DVDs make the round trip from the Netflix distribution […]

The TV transmitter we present today generates a stream containing four TV programs and broadcasts it on a frequency in the DTT standard . Ideal for stacking in an antenna system, audiovisual channels generated on-site or from other sources like a decoder for satellite television. With this project you can make a small local TV […]

OLED Components Like an LED, an OLED is a solid-state semiconductor device that is 100 to 500 nanometers thick or about 200 times smaller than a human hair. OLEDs can have either two layers or three layers of organic material; in the latter design, the third layer helps transport electrons from the cathode to the […]

This is a simple project of Android Bluetooth Car with Bluetooth control. This project is open source and multiplatform: Arduino (Processing), STM32, MSP430, PIC, AVR, FEZ Panda II (.NET Micro Framework) and may be even В Raspberry Pi. To control the car used Android-device with a built-in accelerometer. Tilt forward – car goes forward, tilt to […]

The Basics ­­What does it really mean when you “take” a picture with a camera? When you click the shutter, you have frozen a moment in time by recording the visible light reflected from the objects in the camera’s field of view. In order to do that, the reflected light causes a chemical change to […]

Description The MAX44281 is the industry’s first op amp in a 4-bump WLP package, designed for use in portable consumer and medical applications. This device is offered as a noninverting amplifier with gain (AV) of +1V/V, +2V/V, or +10V/V.The device features rail-to-rail output, low 100µV input voltage offset, and 15MHz of bandwidth with only 700µA […]

A logic analyzer is an excellent tool for capturing many digital signals at once and displaying their timing relationships. It is particularly useful in verifying and debugging digital circuits. This tutorial is intended to provide a quick overview of a logic analyzer tool and its uses in analyzing and decoding data flowing on multiple signal […]

Some time ago I’ve build a prototyping board with graphical LCD. It have served for various small projects and prototypes. Had a spare temperature sensor DS18B20 and decided to put simple temperature display project. GLCD board is equipped with Atmega32 microcontroller running at 16MHz. DS18B20 sensor is connected to port D pin 6. LED connected […]

Relay Construction Relays are amazingly simple devices. There are four parts in every relay: Electromagnet Armature that can be attracted by the electromagnet Spring Set of electrical contacts The following figure shows these four parts in action: In this figure, you can see that a relay consists of two separate and completely independent circuits. The […]