About: Ibrar Ayyub

Jeopardy style quiz games are favorites for creating excitement and educational instruction at the same time.  Teachers, summer camp counselors, and even industry educators find this type of game to help generate interest and involvement from the participants. The idea behind the game is simple, but sometimes finding a device that will perform the “first […]

The easiest way to connect an audio signal to your arduino, is to build a simple 3 components (2 resistors plus cap) circuitry shown on the first drawings on right side. Disadvantage: there is no amplifier, and consequently sensitivity would be low, hardly enough to work with headphones jack output.  For low level signals, like […]

The idea of using triangulation for distance measurements is well known since Pythagorean time, when his brilliant formula become available for mathematicians. What is new in this design, is lasers power control via “blooming” effect of CMOS camera. Here this “negative” effect was put to work instead of ADC. No need high price “no-blooming” camera! […]

O’K, after having some fun with stereo version of the VU meter I described in my previous blog-post, now it’s time to do a serious stuff. Studio grade VU meter !!! 24 steps, equally spaced every 3 dB, covering Extra wide Dynamic Range from -63  up to  +6 dB.  Single (mono) channel this time, no messing around, […]

The basic idea was to create color organ / spectrum analyzer on arduino board, trying to minimize quantity of external components, like analog filters, LED display drivers, etc. Spend a lot of time in search on internet I was able to find only two ! project ,  which implemented FFT in order to solve a […]

Book Description If you’ve heard of Arduino or even used it in your own projects, you probably know that the AVR microcontroller is the brain of the Arduino. In Practical AVR Microcontrollers, you’ll learn how to use the AVR microcontroller to make your own nifty projects and gadgets. You’ll start off with the basics in […]

Book Description Turn your iPhone or iPad into the hub of a distributed sensor network with the help of an Arduino microcontroller. With this concise guide, you’ll learn how to connect an external sensor to an iOS device and have them talk to each other through Arduino. You’ll also build an iOS application that will […]

Book Description Open locked doors using your smartphone. Assemble a bird feeder that posts Twitter tweets to tell you when the birds are feeding or when bird seed runs low. Have your home speak to you when you receive email, notify you when visitors arrive, and more. You’ll learn how to use Android smartphones, Arduinos, […]

Book Description Makers around the globe are building low-cost devices to monitor the environment, and with this hands-on guide, so can you. Through succinct tutorials, illustrations, and clear step-by-step instructions, you’ll learn how to create gadgets for examining the quality of our atmosphere, using Arduino and several inexpensive sensors. Detect harmful gases, dust particles such […]

Book Description Low-cost and high-performing, with a massively diverse range of uses and applications, the Raspberry Pi is set to revolutionize the way we think about computing and programming. By combining the Raspberry Pi with an Arduino board you’ll be able to revolutionize the way you interact with your home and become part of a […]