About: Ibrar Ayyub

Project Natal Challenges the Wii On June 1, 2009, Microsoft’s annual E3 press conference announced the development of a motion-sensitive gaming technology code-named Project Natal. The promotional video on YouTube, posted the same day as the press release, portrayed Project Natal as a controller-less way to play games, watch movies and keep in touch with […]

View as PDF Most commercial LED flashlights use three AAA or AA batteries in series that produce 4.5V. The batteries then drive four white LEDs that connect in parallel. These LEDs can work at voltages as low as 2.7V and, in some cases, 2.4V. At those voltages, the LEDs become dim, and you must frequently […]

Some time ago we have posted alphanumeric AVR-GCC LCD library. It works fine in 8-bit and 4-bit modes. But it has some limitations that some people may find annoying. One of them is requirement that LCD pins has to be byte aligned for instance in 8 bit mode LCD_D0 … LCD_D7 pins has to be […]

Inside a Roomba The Roomba Red is approximately 13 inches (33 cm) in diameter and 3.5 inches (9 cm) tall. An external examination reveals the following parts: Roombas run on a rechargeable NiMH battery. The Roomba Red battery pack is rated at 3 amp-hours and takes about seven hours to fully charge to about 18 […]

  Customize Your Experience with myAtmel Finding app notes, training, kits, samples and other Atmel® design resources is now easier than ever with the new myAtmel portal. By signing up for a myAtmel account, you get:   Automatic registration for downloads   Alerts when previously downloaded documents or software are updated   Product updates   […]

What exactly is a transistor, anyway? Transistors are devices that control the movement of electrons, and consequently, electricity. They work something like a water faucet — not only do they start and stop the flow of a current, but they also control the amount of the current. With electricity, transistors can both switch or amplify […]

Heat and arcing won´t represent a threat to your health. Dust-off sprays will displace dust simply and efficiently even in harsh environment and from hard-to-reach places. Who wouldn´t like to have an allround reliable helper – a helper with a long hold-off, which won´t lose his breath after a short work? Dust off containing a […]

Configuring the microcontroller before running it the first time: Fuse bytes : high and low Program them once before you start using the micro-controller Disable JTAG to free up PORTC for normal use Set the correct clock clock option With the hardware set up, run in Command Prompt : For 1MHz internal clock: vrdude -c […]

How it Works: The Science Behind the Magic Way back in the early 1920s, when Léon Theremin worked at the Physico-Technical Institute in St. Petersburg, Russia, he noticed that when he moved his body in or out of an electromagnetic field produced by a radio frequency oscillating circuit, he changed its frequency [source: Harrison]. The […]

Get Your Bits Fit FitBit is evolving, from both a hardware and software perspective. In October 2011, the clip itself was upgraded and renamed the FitBit Ultra. The Ultra has the same features as the original FitBit, with one major addition: an altimeter. With the altimeter, Ultra knows how much elevation you lose or gain […]