About: Ibrar Ayyub

Gordon, the unique supercomputer launched last year by the San Diego Supercomputer Center (SDSC) at the University of California, San Diego, recently completed its most data-intensive task so far: rapidly processing raw data from almost one billion particle collisions as part of a project to help define the future research agenda for the Large Hadron Collider (LHC).

Scanning the web on microcontroller based USB solutions, I stumbled over Objective Development’s freeware USB solution based on Atmel’s  AVR architecture. I decided to build up their reference design PowerSwitch with an ATTiny2313 MCU. Since I never used AVR chips before, the first challenge was to set up a code development environment enabling me to […]

Description The DS1868B has two 256-position potentiometers, with wiper positions each set as 8-bit values. The potentiometers can be used independently or stacked for increased total resistance and number of taps. Communication takes place through a 3-wire serial port interface that drives an internal control logic unit. Multiple DS1868s can be linked or daisy-chained for […]

The first option in loss prevention involves the use of deterrents such as security guards, observation mirrors (that allow store clerks to see throughout the store) and closed-circuit television (CCTV) surveillance systems. Most large stores use some combination of these techniques, which were among the earliest tools used to combat shoplifting. Smaller businesses, unable to […]

I. Introduction This project is a portable battery-powered video game based on the 1984 cult classic PC game “Rogue”. I designed a hardware-based roguelike video game because I am a long-time Rogue addict and thought it would be cool to make a portable plug-and-play imitation. The project involved some basic hardware setup, including a Sega […]

The LM4780 is a great part to build your own Audio Power Amplifier. It is not a new part, but is a very popular part used audio amplifier circuits. This part is spec’d to drive two 8Ω loads at 60 watts. The part comes in a wide TO-220 package and can be mounted to a […]

2-D Trilateration Imagine you are somewhere in the United States and you are TOTALLY lost — for whatever reason, you have absolutely no clue where you are. You find a friendly local and ask, “Where am I?” He says, “You are 625 miles from Boise, Idaho.” This is a nice, hard fact, but it is […]

(Phys.org) —DARPA (Defense Advanced Research Projects Agency) is getting closer to its goal of securing robotic hands that mimic the hand’s finer movements, at an affordable cost. A research project has been under way to develop artificial hands; the main goals have been of an economic as well as technical nature; DARPA has been looking for robotic hand systems that offer not only optimal dexterity but can also come at a lower cost than in the past.

A guest blog post written by Andy Parrish, UK Sales Manager of Mascot AS on how extensive engineering has been applied behind bike lights to create ultra-lightweight, high-performance battery packs using the highest performing battery chemistries. Lumicycle has established a premier position in the high-performance cycle lighting sector

Evertool is an AVRISP/STK500-protocol and JTAGICE compatible Programmer/JTAG debugger. ISP Programmer compatible with Atmel AVRISP, directly accessable with AVRStudio and avrdude JTAG debugger compatible with Atmel JTAGICE, directly accessable with AVRStudio and AVaRice Evertool supports all AVR devices Atmel supports with their AVRISP and JTAGICE. Easy update of the programmer for new target AVRs via […]