About: Ibrar Ayyub

It’s hard to think of a customer-oriented business that hasn’t made the switch from live operators to IVR. When you call your credit card company, you can use the IVR to pay your balance or report a fraudulent charge. Airlines use extensive IVRs to book reservations and check the real-time status of flights. Pharmacies use […]

Have you ever wanted to take a standard voltage op-amp and turn it into a high voltage output circuit? Here is a technique that requires some shunt regulators to power the chip and some current limiting transistor circuitry for the output. This example should work upto +/- 120V.   For more detail: Make an Op-Amp High-Voltage […]

First let’s tackle the obvious question: Will that cell phone in your pocket give you cancer? Countless studies continue to tackle the problem, but answers remain elusive — in large part because most cell phone users haven’t had the technology long enough. Tumors typically take 10-20 years to develop [source: Butler]. Yet there’s no denying […]

This week we have been playing with another new product, the DipCortex. It’s an ARM Cortex M3/M0 in a 40 pin dip package and USB socket. It has two versions a NXP LPC1347 M3 and a LPC11U24 M0, the pin out roughly follows a certain range of 40pin 8bit micros.     It’s perfect for quickly […]

When it’s so easy to get distracted during a busy day, with work, chores and errands all jockeying for our attention, it’s more than likely we sometimes upset some of the simpler pleasures in life. For example, a mug of strong, freshly brewed coffee, or a cup of hot tea. Many like to start off […]

Check out this cool 3D Printed Stepper Motor that  Christopher Hawkins made. You can see in the video that it can move quite quickly and not loose any steps. This design would be idea to teach how stepper motors work. Via: Hack a Day “This is a programmable stepper motor and driver that I made out of some nails, magnet […]

I can remember when the first quartz watches came out, they were going to be the end of normal mechanical watches, just like video tape was going to be the end of theaters. Somehow, it hasn’t worked out that way, and self-winding watches are more popular than ever. The following pictures show you the backside […]

We enlarged our stock offer of well-proven LEDs in a PLCC-2 package with new improved types. KA-3528 series of SMT diodes is not a novelty and many of you may know it already for several years, however this series is being continuously enriched with new types. Kingbright as a reliable producer of LEDs always improves their specification, that´s […]

The talk box is not to be confused with other effects devices, such as the wah-wah pedal or vocoder. A wah-wah pedal is another staple of classic rock music, but musicians simply use a foot pedal to make an electric guitar’s frequency shift from treble to bass, creating a “wah” sound.” And a vocoder is […]

A smart choice: The miniSWARM is a versatile USB stick-sized wireless Arduino development board. It’s as powerful as the Arduino Mega and has the wireless capabilities of an XBee radio, but we’ve made it a fraction of the cost of an Arduino + radio shield – cheap enough to leave in any project. A wireless powerhouse: We’ve […]