About: Ibrar Ayyub

In our previous articles on serial data transmission using AVR microcontroller we have demonstrated serial communication using the polling method. In Polling, the microcontroller waits for the RXC flag (in the case of serial receiver) to go high and then moves to the next instruction. This is not a good programming technique to keep the […]

Nature is no doubt the world’s best biological engineer, whose simple, exquisite but powerful designs have inspired scientists and engineers to tackle the challenges of technologies for centuries. Scientists recently mimicked the surface structure of a moth’s eye, a unique structure with an antireflective property, to develop a highly light-absorbent graphene material.

Subtle distortions hidden in ALMA’s stunning image of the gravitational lens SDP.81 are telltale signs that a dwarf dark galaxy is lurking in the halo of a much larger galaxy nearly 4 billion light-years away. This discovery paves the way for ALMA to find many more such objects and could help astronomers address important questions on the nature of dark matter.

Knowingly or unknowingly the RFID technology is used by us in our day to day life. The most familiar example is seen in MNCs, schools and offices for daily attendance or automatic door opening system. The RFID contains two parts, namely, tag and receiver modem. When an RFID tag comes in the range of receiver, the […]

The body hairs of the Saharan silver ant cause total internal reflection of light to make the ants almost ten times more reflective, preventing overheating and yielding their silver sheen, according to a study published April 13, 2016 in the open-access journal PLOS ONE by Quentin Willot from the University Libre de Bruxelles, Belgium, and colleagues.

New methods for lithium recovery from natural brine have been studied at Lappeenranta University of Technology (LUT). The methods enabled increasingly effective recovery of lithium and the purity of the lithium solution increased from 95 per cent to 99.9 per cent, which is difficult and resource-intensive to accomplish using traditional methods.

When diners sat down at a recent gourmet experience held at the Harvey Nichols department store in Manchester, their food was filled with bacteria, fungus and mould. Far from being a public health hazard, this special five-course meal was designed to show how microorganisms are a fundamental part of the food we eat.

This article covers how to extract and display the twelve byte unique tag ID received by RFID module on LCD using interrupt method. Before proceeding to this article readers must have knowledge of serial interrupt and LCD. In the previous article of RFID, polling method was used where the microcontroller was continuously monitoring the RXC […]

This article is in continuation to AVR interrupts. There are two types of interrupts external and internal in AVR microcontroller. The aforesaid article covers external interrupts. AVR microcontrollers have seventeen internal interrupts. These internal interrupts are generated by the internal peripherals of Microcontroller like Timer, ADC etc. The internal interrupts are used for efficient operation […]

Researchers at the University of Georgia’s Savannah River Ecology Laboratory warn that the extinction to two amphibian species—the southern toad and the southern leopard frog—may be hastened by the combined effects of climate change and copper-contaminated wetlands.