About: Ibrar Ayyub

This small project let you make running leds. For this project you need a attiny2313 microcontroller and 8 leds and 8 resistors. The leds can be programmed so that they show differrent patterns. Hardware The leds are connected to PORTB of the microcontroller via the resistors that limit the current to 20mA. The project can […]

With this circuit you can control two unipolair stepper motors in full step mode via the RS232 serial port of your PC. A terminal program such as Hyperterminal can be used to control the stepper motors. The stepper motors can be driven one at a time.  Features: Drives two unipolair stepper motors in full step […]

From energy-efficient jet engines to personalized medical devices, companies can quickly and easily design and manufacture cutting-edge, safe and reliable products thanks to a new collaboration between ANSYS and the University of Pittsburgh. The partnership will further education and research to solve some of the industry’s toughest additive manufacturing problems.

Combining two emerging large-scale technologies for the first time—multiplexed mass spectrometry and a mouse population with a high level of natural genetic diversity —researchers at Harvard Medical School (HMS) and The Jackson Laboratory (JAX) can crack an outstanding question in biology and medicine: how genetic variants affect protein levels.

A photocell or photo resistor is a Light Dependent Resistors (LDR). LDR’s are sensors that detect light. They are small, inexpensive, low-power, easy to use and don’t wear out. Overview A photocell or photo resistor is a Light Dependent Resistors (LDR). LDR’s are sensors that detect light. They are small, inexpensive, low-power, easy to use […]

A new study from the Cava lab has revealed a unifying connection between seemingly unrelated materials that exhibit extreme magnetoresistance, the ability of some materials to drastically change their electrical resistance in response to a magnetic field, a property that could be useful in magnetic memory applications.

A physics experiment performed at the National Institute of Standards and Technology (NIST) has enhanced scientists’ understanding of how free neutrons decay into other particles. The work provides the first measurement of the energy spectrum of photons, or particles of light, that are released in the otherwise extensively measured process known as neutron beta decay

(Phys.org)—The relationship between communication complexity problems, Bell nonlocal correlations and the advantage of quantum over classical strategies has long been recognized, but has been confirmed in only two problems. Recently, however, scientists at University of Cambridge, University of Amsterdam, CWI, QuSoft, Gdansk University, Gdansk University of Technology, Adam Mickiewicz University, and Jagiellonian University employed a two-part method based on port-based teleportation – a scheme of quantum teleportation where a receiver has multiple (N) output ports and obtains the teleported state by merely selecting one of the N ports1,2

his electronic cricket is a fun project. A real crickets chirp at night and faster in warmer temperatures. A cricket chirp is composed of a group of three sinus waves of a single frequence of about 5kHz. occurring in rapid succession. Introduction This electronic cricket is a fun project. A real crickets chirp at night and […]

Professor Chris Arumainayagam will announce findings from his research conducted at Wellesley College today, Monday, June 13, as part of the annual press briefings kicking off the American Astronomical Society (AAS) national conference in San Diego, Calif. Arumainayagam, a professor of chemistry at Wellesley, will discuss his work—the first systematic study to demonstrate that early building blocks of life may be produced when low-energy (< 20 eV) electrons interact with cosmic (interstellar, planetary, and cometary) ices.