About: Ibrar Ayyub

If you’ve ever been designing a circuit and had to experiment with different values of caps and resistors, you probably didn’t like it much.  It can be a hassle to switch out components over and over, trying to find the right combination to suit your needs. With RC filter circuits, it can be quite difficult […]

I have something with the weather. I always like to know how warm or cold it is, how much rain has fallen, how hard the wind blows and from what direction,… and so there are lots of sensors around our house to keep me up to date. These sensors give only a limited range of […]

This little device shows you the CPU-load, how much physical and virtual memory is used. It shows this data per 10% on 3 ledbars. To do so it uses a VCP (Virtual COM Port), so that it can be connected to a PC via a USB connection to receive the data. Collecting the data and […]

“When they are healthy, they look like tiny spheres; when they are malignant, they appear as cubes” stated Giuseppe Legname, principal investigator of the Prion Biology Laboratory at the Scuola Internazionale Superiore di Studi Avanzati (SISSA) in Trieste, when describing prion proteins. Prions are “misfolded” proteins that cause a group of incurable neurodegenerative diseases, including spongiform encephalopathies (for example, mad cow diseases) and Creutzfeldt-Jakob disease

This is an instructable for making your own PWM (Pulse Width Modulated) flyback driver! The design is relatively simple and easy to make if you have basic electronic skills. In fact, you don’t even have to know how a transistor or a MOSFET works to make this. You only have to follow the instructions. What […]

A key objective of Europe’s research and innovation policy is to take discoveries and breakthroughs from the lab and into the market place. A good example of this is the ECOPROT project, which aims to industrialise an innovative procedure for producing corrosion-protecting environmentally friendly coatings for aluminium and magnesium alloys, to be used in the aeronautics market.

What follows are instructions for constructing a battery powered portable VU meter, as well as detailed instructions for the construction of the PCB needed to complete this project. It was designed to illuminate from 0-10 LEDs depending on ambient sound levels. I designed it to be attached to a wristband, clothing, or a necklace if […]

My obsession of this year is full-color LED. I have made Aurora 9×18 as a result. As much as I love the scale of Aurora 9×18, I also wanted to have something smaller, perhaps something that can go on a costume. Here’s Aurora mini 18. It has 18 full-color/RGB LEDs on a smallest possible circle. […]

One of the biggest challenges faced by solid-state lighting designers is reliability. Electrical and thermal conditions are two major factors affecting device life and lighting output and, while long life is a key benefit of LEDs compared to incandescent and fluorescent light sources, all bets are off if the LEDs exceed their temperature ratings. Thermal […]

Tall buildings, bridges and other long-period structures in Greater Vancouver may experience greater shaking from large (M 6.8 +) earthquakes than previously thought due to the amplification of surface waves passing through the Georgia basin, according to two studies published by the Bulletin of the Seismological Society of America (BSSA). The basin will have the greatest impact on ground motion passing over it from earthquakes generated south and southwest of Vancouver.