About: Ibrar Ayyub

Altera’s Spectra-Q software aims to accelerate design time for its Quartus II software for programmable devices. Spectra-Q has faster algorithms and allows for incremental design changes without needing to perform a full design compile It has a hierarchical database that enables users to preserve placement and routing information of IP blocks while making changes in other […]

Capacitors    Capacitors are two-terminal components used for filtering, energy storage, voltage spike suppression, and many other applications. In their simplest form, they consist of two parallel plates separated by an insulating material called a dielectric. Capacitors store electrical charge. The unit of capacitance is Farad (F), attributed to Michael Faraday who was a pioneer […]

Pic-plot now goes to USB! A perfect low cost solution to quickly get screen plots of your GPIB instrument on your laptop PC without complex software. It emulates the HP7470A operation on the GPIB side, and outputs the HP-GL data at the USB port to be read and stored on the PC by any capturing […]

A friend asked me if I could build him a device that would allow him to take photos of his products in 360 degrees. That kind of photo is actually an animation that consists of several photos of the same product but from different angles. It means that we need a device that can be […]

How to use this When the simulator starts up you will see an animated schematic of a simple LRC circuit. The green colour indicates positive voltage. The grey colour indicates ground. A red colour indicates negative voltage. The moving yellow dots indicate current. To turn a switch on or off, just click on it. If […]

ARM’s acquisition of Wicentric and Sunrise Micro Devices has produced the Cordio family of standards-based, sub-volt, radio IP supporting Bluetooth Low Energy. Each Cordio product includes a pre-qualified, self-contained radio block, related link layer firmware, stack and profiles along with guidelines for design, test, integration, qualification, and application development.Cordio aims at ease of integration and delivery […]

This was a fun little project I put together in a few hours for a homemade-themed gift exchange this Christmas.  I had on-hand a “Full Color LED” from Radio Shack (part 276-0028) which caught my eye on my last visit there. The LED has a common anode and three cathodes, one for each of the […]

A four digit seven segment display. The image above shows a four digit seven segment display. These type of displays are widely used to present numerical data to users. Example includes clocks, panel meters, microwave ovens, refrigerators etc. As you can see in a four digit displays there are a total of 4 x 7 […]

An article by Dieter Laues in the February 2012 issue of Elektor inspired me to get my soldering iron out. The article described how by measuring the frequency of the mains electricity supply in any socket, the relative load across the entire electricity network could be determined. I ordered a pre-programmed processor (of the correct […]

Introduction Sometimes you only need a simple and cheap RS232 terminal to get sufficient control over a PC or a RS232 device. There is no need, no space or even no power to place a monitor, a computer case and a keyboard. Maybe there exists also the problem, that the PC or the device is […]