About: Ibrar Ayyub

1. Introduction For our final project we built an ATmega32 based stepper motor controller which measures the angular position of the motor shaft using an optical encoder and quadrature decoder. Our system performs 3 basic functions: (1) Communicate with a PC by means of a RS-485 interface, and (2) Generates step and direction signals for […]

Lacking of proper development board always poses huge resistance for me to jump onto a new MCU. Even with the most prototyping friendly DIP packages, wiring a programming header onto the breadboard is both troublesome and unreliable. Things become worse when the MCU is an AVR. There is absolutely no way to mount a 2×3 0.1in pitch […]

MCUs offer a very wide range of Ethernet connectivity choices. With most applications demanding Internet connectivity, it’s more likely than not that your next MCU-based design will need some type of network connection. Whether your next design is a sensor that needs to consolidate and communicate data over an Ethernet link, a network-connected security camera […]

Introduction Low-Cost Turbidity Meter for Underdeveloped Countries Our project is a collaboration with an independent research project being conducted by senior civil and environmental engineering student James Berg. The goal of this project is to create a low cost turbidity meter for use in under developed countries. Real laboratory turbidity meters can cost over $1000.Our […]

Hiking in the mountains or lying on the beach are good ways to relieve stress on Earth, but on spaceflights there’s no way to get back to nature. Astronauts feeling stressed on long-duration flights, however, may soon find computerized solace in the form of a virtual reality-based relaxation system being developed by Dartmouth researchers and their colleagues.

By: Kris Young and Dan Li See the results section for movie clips of the motion capture system in action. Abstract Human-Computer interface may perhaps be both the most limiting and liberating aspect of humans working with computers.It can, for instance, limit the input complexity to the system or may, alternatively, provide a great range […]

Back when I was only starting to dabble in electronics, I needed a project that would meet the following requirements: simple to make; original (i.e. done entirely by myself from scratch); containing a microcontroller; and maybe the most important of all, useful. I’ve had enough devices I assembled just to dismantle the whole thing a […]

Four urban sections of the San Andreas Fault system in Northern California have stored enough energy to produce major earthquakes, according to a new study that measures fault creep. Three fault sections – Hayward, Rodgers Creek and Green Valley – are nearing or past their average recurrence interval, according to the study published in the Bulletin of the Seismological Society of America (BSSA).

I.Introduction Soundbyte:A Wireless Data Telemetry system that receives acceleration, proximity and external temperature data from a remote vehicle and displays them on an NTSC television screen. The rationale behind this project is to provide the user with information regarding the vehicles acceleration, proximity to other stationary objects, and external temperature. The information gathered would be […]

My through hole, home etch friendly version of the surface mount FabISP, which is based around the USBtinyISP  AVR ISP Programmer. The new USBtinyISP drivers also has support for Windows 8 This design uses the ATtiny84 microcontroller  instead of the larger ATtiny2313 of the USBtiny. For more detail: ATtiny84 USBtiny AVR ISP Programmer