This blog is used as an information store for students studying AQA GCE Electronics A Level. It is primarially intended for my students at the Melton Vale Post 16 Centre in Melton Mowbray, UK, however if any of this information is of use to you, you are welcome to it.
The eyeboard is an open source project that was built in order to help people with disabilities. His circuit detects the eye movements using the technology called "Electrooculography". Which consists in detecting the resting potential that exists between the retina and the cornea by using skin electrodes around the eyes.
BBC News : Sony has unveiled a paper-powered battery prototype in Japan. The technology generates electricity by turning shredded paper into sugar which in turn is used as fuel.
A motor made only by a copper wire and a neodymium magnet. It uses one AAA battery but it can be done with AA one too. It's a simple motor, but unfortunately is not an efficient one, the battery drains quickly and heats up.
BBC News : Scientists are getting closer to the dream of creating computer systems that can replicate the brain.
Researchers at the Massachusetts Institute of Technology have designed a computer chip that mimics how the brain's neurons adapt in response to new information.
With this POV light painter, you can paint the town red or any other color that suits your fancy. The LightScythe is a 2-meter long POV tube made up of multi-color LED strips. POV stands for Persistence of Vision which describes how our eyes see motion blur when an object is moving quickly. In this case, it enables us to see a message written with light.
An image is loaded onto a laptop which converts it to serial data, then sends it to an Arduino which controls the lightbar. A camera is set for 10 to 15 seconds of exposure, during which time the user walks across the frame, painting the image to be caught by the camera.
As though an electric mountain board isn’t cool enough for zipping around, this industrious inventor just added wireless control. He uses a glove laced with sensors & switches to control the device
With more and more gadgets coming out every day that utilize USB for charging, it’s almost necessary to have a USB port available at all times. This DIYer decided to create a 5V generator using his bike and a modified USB car charger. The 5V USB plugs are situated under his seat and he has a carrying rack for cellphones, GPS, or MP3 players on the go.
This 3D printing project demonstrates what you can do in the desert with just two materials: sand and sun. In the demo above, sunlight and sand are used to build up a design layer by layer to create glass objects using a 3D printing process.
With the introduction of the Google ADK (Android Device Kit), DIYers building neat projects around the platform. With the addition of some LED lights and several servo motors (which control the movement of the head and arms), the static figures come to life at the commands of an Android tablet.
Control of the movement and flashing of the eyes is transmitted from the Android tablet by simply swiping your fingers to the music.
Fire Hero is a suprisingly simple project that uses a Guitar Hero controller. The controller is connected wirelessly to a microcontroller, that turns valves full of propain on and off.
Cleverly disguised as a beer can, this prototype robot transforms upon command. Its brain is an MBED control board and the design incorporates two servos. It is controlled by a Wii remote and gets around by walking on its three legs, or rolls for faster getaways. Unfortunately, there is only limited information about the project’s build details.
BBC News : A project to construct one of the earliest mechanical computers based on sketches by its designer, Charles Babbage, has received a major boost.
In May Google announced Google Wallet - an app that makes your phone your wallet - with Citi, MasterCard, Sprint and First Data. With Google Wallet, you can tap, pay and save using your phone and near field communication (NFC).
They’ve been testing it extensively, and today have released the first version of the app to Sprint. That means they’re beginning to roll out Google Wallet to all Sprint Nexus S 4G phones through an update - just look for the “Wallet” app.
BBC News : Blackberry manufacturer Research in Motion (RIM) has seen its second-quarter profits more than halve, hurt by low demand for its older models.
In the very near future, these researchers believe robots will combine together to do all the tasks assigned to them. The Swarmanoid Project is a glorious example of a glimpse into the future which demonstrates 60 robots working together in a collaborative environment. The goal of the swarm robotic project (4 years in the making) is to use the different capabilities of each class of robot and combine them into a system to accomplish tasks.
The Segway may not have set city trails ablaze, they have sparked plenty of DIY versions. A Segway is a costly transportation method since they cost as much as an entry level car. So, if you are tempted to build one of your own, follow this DIY Segway project and build one for a little over $400.
BBC News : "If a robot is produced that behaves just like one of us in all respects, including thought, is it conscious or just a clever machine, asks Prof Barry C Smith, director of the Institute of Philosophy."
Need a little motivation to get up in the morning? I bet an alarm clock which shreds your money would motivate you to get out of bed. Insert money the night before and, if you wish to sleep in, face the consequences: it WILL shred your money! Instead of shredding real money (which is illegal), perhaps it would be better to place a fake bill in the clock and donate the real one to charity. It’s only a concept at the moment, but perhaps not for long.
If you’re into photography, you may wish for a way to activate your camera shutter from a distance. By making use of a bluetooth transceiver and an Android smartphone, guy created a fairly simple way to send signals to his Nikon D90 through the shutter release plug in and snap pictures using his cellphone.
British couple Lenny and Meriel Lenfesteys use parts from computers and electronics kits to create tiny figures called Sparebots.Sparebots are more commonly referred to as Life of Sparebots .
As Y12s, you are a very varied bunch! Some will have done Electronic Products GCSE, some will have done the Engineering Diploma and some will have never studied Electronics before.
To get everyone to the same level, we will beging by doing a whirlwind revision of GCSE Electronics. I will begin by introducing Electronic Systems, and then describe Logic Gates. Click on the links to view the relevant handout.
Y12s : Over the next few weeks we will be looking at Boolean Algebra. This is a form of algebra that will help us express the requirements of our digital circuits which we will soon build. Simple Solver is a Windows program that will give you the answer to your boolean equation!! Please be aware that I will expect any work from you to show all steps to the solution, and not just the solution itself.
This weekend BBC Click talked about a great web site - bookboon.com. It is a web site that offers free text books that you can download. The text books are funded by some advertising, but hey they're free!