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Enter contest with your FPGA based POV

Pyroelectro announced that they started contest on building FPGA or CPLD based POV (Persistence Of Vision). There are plenty of microcontroller driven POV displays, clocks and 3D sculptures. FPGA’s can also be successfully used to build various types of POV’s. Give a try and win prize (Basys2 Spartan-3E FPGA board). Submit your entry to contests@pyroelectro.com with the subject line “PyroElectro POV Contest.” Your entry must contain two photos of the device – one of its components in a well-lit environment and one of it in action in a darkened environment – as well as a circuit diagram and the VHDL code to run the device. Continue reading

Amazing LED patterns on your bicycle spokes

The project also known as Spoke ink creates a beautiful patterns in a shape of an image which is user defined.  Spoke Ink is a booster pack for the MSP430 series of microcontroller, which uses 32RGB Led’s along with a magnetic sensor.  The image to be displayed on the spoke can be created form any bitmap image by using the software provided by the maker itself.  The booster packs creates an image by using persistence of vision which is the same technique used in videos. 2NITo generate a persistent image, Spoke Ink and the MSP430 have to light up in the exact same radial position with each turn of the wheel which is achieved by triggering interrupts based on a small magnetic sensor that trips each time the booster pack passes a small magnet glued to stationary part of the bicycle. The project requires very basic components such as RGB LED’s Hall Effect sensors along with the launch pad for MSP430 and the booster pack mentioned above. Continue reading

Is Time for Your Very First Persistence of Vision (POV) in Arduino Version

Do you know most of the cartoons are create based on this Persistence of Vision method? This Persistence of vision is the common phenomenon of the eye, which in nanoseconds of exposure to an image that result in milliseconds of reaction from your retina to the optic nerves. The persistence of vision is always being compared with the related phenomena of beta movement and phi movement. In the point of view for POV, your eye/brain system functions as a motion detectors rather than camera. That’s why this POV has widely being used in the Film, video, cartoon animation and optical toys production. You main goal for today is to mount the POV in a bike wheel and it will display a fascinating views while you ride on it. Continue reading