About: Ibrar Ayyub

For many of my previous projects I used AVR Microcontrollers extensively. I started with the Atmega8 and moved to superior AVR variants depending on the application complexity and requirements. Before designing any particular application, I usually do my research on a development board. It is a PCB featuring the target microcontroller and minimal support logic that usually covers a […]

A research team led by Kazunari Yamaura, chief researcher, Superconducting Properties Unit, National Institute for Materials Science (NIMS), Japan, and Dr. Stuart Calder and others at the Oak Ridge National Laboratory in the United States, jointly demonstrated that the strongest ever spin-phonon coupling was observed in osmium oxide synthesized for the first time in the world by NIMS in 2009.

The MicroGame is an experiment of making a custom portable platform for gamming compatible with Arduino. It’s based on a small monochrome 128×64 pixels OLED from Adafruit and a ATmega32U40 8-bits microcontroller running at 8MHz. All hardware design and game source code is writed from scratch and you can find all the file sin this […]

Understanding fractions is a critical mathematical ability, and yet it’s one that continues to confound a lot of people well into adulthood. New research finds evidence for an innate ratio processing ability that may play a role in determining our aptitude for understanding fractions and other formal mathematical concepts.

For those of you who remember the eighties, this will no doubt bring back fond memories when every piece of audio equipment in the known universe was at the time equipped with a plethora of LEDs. More specifically the ubiquitous Graphic Equaliser or ‘Graphic EQ’. This Instructable is centred around the MSGEQ7 to create a […]

The National Science Foundation’s premier data management platform for the life sciences has rebranded, shedding the project’s original label of iPlant Collaborative and donning the new name CyVerse. The rebrand emphasizes the project’s capacity to provide data management and computation services beyond plant sciences, for collaborations across scientific disciplines.

Suicide is the second leading cause of death among college students in the U.S., and a new study suggests that students who play many hours of action video games in particular may be more capable of acting on suicidal thoughts. The study linking action video games, which usually involve violence and aggressive content, to acquired capability for suicide is published in Cyberpsychology, Behavior, and Social Networking.

Features Single IC Balances up to Four 12V Lead Acid Batteries in Series All N-FET Design Stackable to Balance Larger Series Battery Packs Stand Alone Operation Requires no External μP or Control Circuitry Balancing Current Limited by External PTC Thermistor Continuous Mode and Timer Mode Programmable UV and OV Fault Thresholds Programmable Termination Time and Termination Voltage Thermally […]

Motivation Though I am a musician I don’t care for calling an expensive hi watt stereo my own. For years I have used a homebuilt stereo amplifier built around the TDA1554Q IC (basically just this chip in a nice box) and I am still very happy with the sound quality. This amp serves as a […]

Drilling holes in homemade PCBs is greatly simplified with an computer-driven coordinate table on a drill press. The clue is the on-the-fly calibration technique, so it does not matter where exactly the PCB lies on the table. You only need to move to two drill holes by hand, then the computer knows how to drive […]