Posts by Ibrar Ayyub:
How Atomic Clocks Work
Posted on: 05 Mar 2013
Are Atomic Clocks Radioactive? Atomic clocks keep time better than any other clock. They even keep time better than the rotation of the Earth and the movement of the stars. Without atomic clocks, GPS navigation would be impossible, the Internet would not synchronize, and the position of the planets would not be known with enough […]
Self-powered solar data logger using ATmega32
Posted on: 05 Mar 2013
Introduction: My project is a self-powered solar data logger. Put out in the sunlight, it will measure the light level and log this to memory to be later downloaded to a computer. The system is powered by a small solar panel and battery. Summary: The solar logger I built uses a photodiode to measure the […]
NU-FitHole hole size helper
Posted on: 04 Mar 2013
As mentioned in an earlier post I’ll try to do one small PCB project every week and then send for PCB’s of it every Monday. This weeks PAW will be extremely simple – it’s not even a breakout board, but it might still come in handy for people making PCBs. The FitHole is a tool […]
Wall of Pong using ATmega32 microcontroller
Posted on: 04 Mar 2013
Wall of Pong is a fast-moving, interactive, laser-based pong game playable on any flat surface. The system uses a digitally controlled laser projection platform to draw a pong ball onto any flat surface. This allows for a large playing area that can be set up almost anywhere. Hand held paddles with embedded sensors are given […]
How Digital Clocks Work
Posted on: 04 Mar 2013
The Basics If you have read How Pendulum Clocks Work, you know that all clocks (regardless of technology) have a few required components: A source of power to run the clock In a pendulum clock, the weights or the springs handle this role. An accurate timebase that acts as the clock’s heartbeat In a pendulum […]
Now Boston Dynamics' BigDog can lift and toss (w/ video)
Posted on: 03 Mar 2013
(Phys.org) —Boston Dynamics’ DARPA-funded robotic dog has been upgraded with added functions for military support in hauling gear on rough terrain, Its new appendage is called various things—a “kind of head,” a “face-arm,” and a “canine elephant trunk.” Whatever the terminology, BigDog has a new appendage to its torso that resembles a head. Boston Dynamic’s goal of increasing versatility of roles took a page from movements by human athletes.
HackEDA builds Eagle schematics and PCBs from standard circuit blocks
Posted on: 03 Mar 2013
Welcome to Hackeda! This website was started to make designing custom electronics less painful. The basic idea is simple: Create a design by choosing from the library of circuits. Use your choices to automatically generate a schematic. Download it. The file format is Eagle 6. Correct footprints are embedded in the schematic so you’ll have […]
How Circuit Breakers Work
Posted on: 03 Mar 2013
Circuit Breaker: At Work in Your Home The power distribution grid delivers electricity from a power plant to your house. Inside your house, the electric charge moves in a large circuit, which is composed of many smaller circuits. One end of the circuit, the hot wire, leads to the power plant. The other end, called […]
A Wearable Wireless Sensor System using ATmega644V
Posted on: 03 Mar 2013
Introduction In this digital age, new interfaces for musical expression provide much broader musical possibilities than have ever existed before. There is a constant quest to be in harmony with one’s instrument so that music can flow freely from the imagination and take form effortlessly. This sparks an interest in new ways to interact with […]
Design a Customizable Virtual Keyboard using ATmega32
Posted on: 02 Mar 2013
Introduction It is becoming increasingly difficult for users to interact with the slew of portable gadgets they carry, especially in the area of text entry. Although miniature displays and keyboards make some portable devices, such as cell phones and PDAs, amazingly small, users’ hands do not shrink accordingly. To solve this problem, we proposed a […]
